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• Oracle OpenWorld Preview: Let's Get Social and Interactive

  - by Christie Flanagan

  Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} On this blog, we often write about getting social and interactive.  Usually, we’re talking about how to create a social business or how to make the customer experience more social and interactive.  Today’s topic is about getting social and interactive as well. But this time we’re talking about getting social and interactive the old fashioned way, face-to-face at Oracle OpenWorld with fellow Oracle WebCenter customers, partners and experts and the broader Oracle community.  Here are some great ways to get social at OpenWorld outside of the exhibition halls and meeting rooms: Oracle OpenWorld Welcome Reception - Sponsored by FujitsuSunday, September 30, 7:00 p.m.–8:30 p.m.Yerba Buena Gardens & Howard Street Tent You’ll definitely want to attend the Opening Ceremonies for Oracle OpenWorld 2012 on Sunday, September 30. Centered in Yerba Buena Gardens (YBG) and shimmying out to other venues, the Opening Ceremonies are not to be missed. Join other attendees for great food and drink, energizing music, networking opportunities, and more. While you’re at YBG (home of ORACLE TEAM USA’s America’s Cup Pavilion), be sure to meet the sailors who will be defending the 34th America’s Cup in 2013. Get a good look at the 161-year old Trophy itself—the oldest trophy still being contested in international sport. And at the AC72 boat display, view a model of the largest wingsail ever built. Oracle WebCenter Customer Appreciation ReceptionTuesday, October 2, 6:30 p.m.—9:30 p.m.The Palace Hotel, Rallston BallroomThose Oracle WebCenter customers who’ve RSVP’d to attend the Oracle WebCenter Customer Appreciation Reception shouldn’t miss this private cocktail reception at one of San Francisco’s finest hotels. Sponsored by Oracle WebCenter partners Fishbowl Solutions, Fujitsu, Keste, Mythics, Redstone Content Solutions, TEAM Informatics, and TekStream, this evening will provide plenty of time to interact with other WebCenter customers, partners and employees over hors d'oeuvres and cocktails. Oracle Appreciation Event – Sponsored by CSC, Fujitsu and IntelWednesday, October 3, 7:30 p.m.—1:00 a.m.Treasure Island, San Francisco On Wednesday night October 3, Treasure Island will be engineered to rock as the Oracle Appreciation Event gets revved up and attendees get rolling. As always at the Oracle Appreciation Event, there will be unlimited refreshments, fun and games, the most awesome views of San Francisco from just about anywhere, and top notch entertainment.  Past performers read like a veritable who’s who of the rock and roll elite. Join us—it's our way of saying thanks to you for supporting Oracle and our flagship conference. Complimentary shuttle service to and from Treasure Island will be provided, so all you have to worry about is having a rocking night of your own. Oracle OpenWorld Music FestivalSeptember 30-October 4, Check schedule for venues and times.Oracle presents the first annual Oracle OpenWorld Musical Festival, featuring some of today’s breakthrough musicians from around the country and the world including Macy Gray, Joss Stone, Jimmy Cliff and The Hives. It’s five nights of back-to-back performances in the heart of San Francisco. Registered Oracle conference attendees get free admission, so remember your badge when you head to a show. With limited space at some venues, these concerts are first-come, first-served. So mark your calendars and get ready for the music to begin. See you there!I hope this give you an idea of the many opportunities to socialize and interact with the Oracle community at OpenWorld, and if you’re a music lover like me, you’re in for a special treat as we debut our first annual Oracle OpenWorld Music Festival.  Check out the links below for more information on these events and the many featured performers: Reflections from the Young Prisms A Brief Soul Session with Joss Stone Mixing It Up with Blues Mix Red Meat’s Music is Rare and Well Done The English Beat’s Dave Wakeling Gets Philosophical Top Ten Reasons to Attend the Oracle Appreciation Event There’s Magic in the Air, There’ll Be Music Everywhere Looking forward to seeing you at OpenWorld!

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• Some New .NET Downloads and Resources

  - by Kevin Grossnicklaus

  Last week I was fortunate enough to spend time in Redmond on Microsoft’s campus for the 2011 Microsoft MVP Summit.  It was great to hang out with a number of old friends and get the opportunity to talk tech with the various product teams up at Microsoft.  The weather wasn’t exactly sunny but Microsoft always does a great job with the Summit and everyone had a blast (heck, I even got to run the bases at SafeCo field) While much of what we saw is covered under NDA, there a ton of great things in the pipeline from Microsoft and many things that are already available (or just became so) that I wasn’t necessarily aware of.  The purpose of this post is to share some of the info I learned on resources and tools available to .NET developers today.  Please let me know if you have any questions (or if you know of something else cool which might benefit others). Enjoy! Visual Studio 2010 SP1 Microsoft has issued the RTM release of Visual Studio 2010 SP1.  You can download the full SP1 on MSDN as of today (March 10th to the general public) and take advantage of such things as: Silverlight 4 is included in the box (as opposed to a separate install) Silverlight 4 Profiling WCF RIA Services SP1 Intellitrace for 64-bit and SharePoint ASP.NET now easily supports IIS Express and SQL CE Want a description of all that’s new beyond the above biased list (which arguably only contains items I think are important)?  Check out this KB article. Portable Library Tools CTP Without much fanfare Microsoft has released a CTP of a new add-in to Visual Studio 2010 which simplifies code sharing between projects targeting different runtimes (i.e. Silverlight, WPF, Win7 Phone, XBox).   With this Add-In installed you can add a new project of type “Portable Library” and specify which platforms you wish to target.  Once that is done, any code added to this library will be limited to use only features which are common to all selected frameworks.  Other projects can now reference this portable library and be provided assemblies custom built to their environment.  This greatly simplifies the current process of sharing linked files between platforms like WPF and Silverlight.  You can find out more about this CTP and how it works on this great blog post. Visual Studio Async CTP Microsoft has also released a CTP of a set of language and framework enhancements to provide a much more powerful asynchronous programming model.   Due to the focus on async programming in all types of platforms (and it being the ONLY option in Silverlight and Win7 phone) a move towards a simpler and more understandable model is always a good thing. This CTP (called Visual Studio Async CTP) can be downloaded here.  You can read more about this CTP on this blog post. MSDN Code Samples Gallery Microsoft has also launched new code samples gallery on their MSDN site: http://code.msdn.microsoft.com/.   This site allows you to easily search for small samples of code related to a particular technology or platform.  If a sample of code you are looking for is not found, you can request one via the site and other developers can see your request and provide a sample to the site to suit your needs.  You can also peruse requested samples and, if you find a scenario where you can provide value, upload your own sample for the benefit of others.  Samples are packaged into the VS .vsix format and include any necessary references/dependencies.  By using .vsix as the deployment mechanism, as samples are installed from the site they are kept in your Visual Studio 2010 Samples Gallery and kept for your future reference. If you get a chance, check out the site and see how it is done.  Although a somewhat simple concept, I was very impressed with their implementation and the way they went about trying to suit a need.  I’ll definitely be looking there in the future as need something or want to share something. MSDN Search Capabilities Another item I learned recently and was not aware of (that might seem trivial to some) is the power of the MSDN site’s search capabilities.  Between the Code Samples Gallery described above and the search enhancements on MSDN, Microsoft is definitely investing in their platform to help provide developers of all skill levels the tools and resources they need to be successful. What do I mean by the MSDN search capability and why should you care? If you go to the MSDN home page (http://msdn.microsoft.com) and use the “Search MSDN with Big” box at the very top of the page you will see some very interesting results.  First, the search actually doesn’t just search the MSDN library it searches: MSDN Library All Microsoft Blogs CodePlex StackOverflow Downloads MSDN Magazine Support Knowledgebase (I’m not sure it even ends there but the above are all I know of) Beyond just searching all the above locations, the results are formatted very nicely to give some contextual information based on where the result came from.  For example, if a keyword search returned results from CodePlex, each row in the search results screen would include a large amount of information specific to CodePlex such as: Looking at the above results immediately tells you everything from the page views to the CodePlex ratings.  All in all, knowing that this much information is indexed and available from a single search location will lead me to utilize this as one of my initial searches for development information.

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• Disaster Recovery Discovery

  - by Rodney Landrum

  Last weekend I joined several of my IT staff on a mission to perform a DR test in our remote CoLo center in a large South East city of the US. Can I be more obtuse? The goal was simple for me as the sole DBA in a throng of Windows, Storage, Network and SAN admins – restore the databases and make them work. There were 4 applications that back ended to 7 SQL Server databases on 4 different SQL Server instances. We would maintain the original server names, but beyond that it was fair game. We had time to prepare so I was able to script out or otherwise automate the recovery process. I used sp_help_revlogin for three of the servers, a bit of a cheat actually because restoring the Master database on the target DR servers was the specified course of action according to the DR procedures ( the caveat “IF REQUIRED” left it open to interpretation. I really wanted to avoid the step of restoring Master for a number of reasons but mainly because I did not want to deal with issues starting SQL Services afterward. Having to account for the location of TempDB and the version conflicts of the resource DBs were just two of the battles I chose not to fight. Not to mention other system database location problems that might arise and prevent SQL from starting.  I was going to have to restore all of the user databases anyway, so I would not really gain any benefit, outside of logins, for taking the time to restore the source Master database over the newly installed one on the fresh server. What I wanted was the ability to restore the Master database as a user database, call it Master_Mine, from a backup on the source system and then use that restored database to script the SQL Logins and passwords on the DR systems. While I did not attempt this on the trip, the thought stuck in my mind and this past week I succeeded at scripting user accounts and passwords using only a restored copy of the Master database. Granted there were several challenges to overcome.  Also, as is usual for any work like this the usual disclaimers apply:  This is not something that I would imagine Microsoft would condone or support and this was really only an experiment for me to learn if it was even possible. While I have tested the process with success, I do not know that I would use this technique in a documented procedure because future updates for SQL Server will render this technique non-functional. I thought at first, incorrectly of course, that I could use sp_help_revlogin on a restored copy of the master database I named Master_Mine.   Since sp_help_revlogin uses system schema objects, sys.syslogins and sys.server_principals, this was not going to work because all results would come from the main Master database. To test this I added a SQL login via SSMS, backed up Master, restored  it as Master_Mine, and then deleted the login.  Even though the test account I created should presumably still be in the Master_Mine database, I should be able to get to it and script out its creation with its password hash so that I would not need to know the password, but any applications that stored that password would not have to be altered in the DR scenario. They would just work as expected. Once I realized that would not work I began looking deeper.  Knowing that sys.syslogins and sys.server_principals are system views, their underlying code should be available with sp_helptext, right? They were. And this led me to discover the two tables sys.sysxlgns and sys.sysprivs, where the data I needed was stored. These tables existed in both the real Master and the restored copy, Master_Mine.  I used this information to tweak the sp_help_revlogin stored procedure to use these tables instead to create the logins cursor used in sp_help_revlogin. For the password hash,  sp_help_revlogin uses the function LoginProperty() which takes a user name and option ‘passwordhash’ to return the hash for the user. Unfortunately, it requires the login to exist in the Master database. This would not work. So another slight modification I had to make was to pull the password hash itself (pwdhash from sys.sysxlgns) into the logins cursor and comment out the section of sp_help_revlogin that uses LoginProperty. Instead, I pass the pwdhash value as the variable @PWD_varbinary to the sp_hexadecimal stored procedure which is also created by and used within the code provided by Microsoft in the link above for sp_help_revlogin. The final challenge: sys.sysxlgns and sys.server_principals are visible only within a Dedicated Administrator Connection (DAC) query window in SSMS or within SQLCDMD.  To open a DAC connection you have to be logged in on the SQL Server itself, via RDP in my case,  and you preface the server name in the query connection with ADMIN:, so that the server connection looks like ADMIN:ServerName. From there you can create the modified stored procedure in the restored copy of a Master database from a source system as whatever name you like, and then run the modified stored procedure. I named my new stored procedure usp_help_revlogin_MyMaster. Upon execution I was happy to see the logins and password hashes that I needed to apply from the source Master database without having to restore over the new Master system database and without the need to access the original server (assuming it was down due to whatever disaster put it in that state). You will note that I am not providing full code samples here of the modifications. I will say that it was a slight bit of work and anyone who needed to do this for whatever reason, could fairly easily roll their own solution with the information provided herein.  My goal, as I said was to prove that this could be done and provide another option if required to ease the burden of getting SQL Servers up and available in an emergency situation where alternatives may be more challenging or otherwise unavailable.  

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• When is my View too smart?

  - by Kyle Burns

  In this posting, I will discuss the motivation behind keeping View code as thin as possible when using patterns such as MVC, MVVM, and MVP.  Once the motivation is identified, I will examine some ways to determine whether a View contains logic that belongs in another part of the application.  While the concepts that I will discuss are applicable to most any pattern which favors a thin View, any concrete examples that I present will center on ASP.NET MVC. Design patterns that include a Model, a View, and other components such as a Controller, ViewModel, or Presenter are not new to application development.  These patterns have, in fact, been around since the early days of building applications with graphical interfaces.  The reason that these patterns emerged is simple – the code running closest to the user tends to be littered with logic and library calls that center around implementation details of showing and manipulating user interface widgets and when this type of code is interspersed with application domain logic it becomes difficult to understand and much more difficult to adequately test.  By removing domain logic from the View, we ensure that the View has a single responsibility of drawing the screen which, in turn, makes our application easier to understand and maintain. I was recently asked to take a look at an ASP.NET MVC View because the developer reviewing it thought that it possibly had too much going on in the view.  I looked at the .CSHTML file and the first thing that occurred to me was that it began with 40 lines of code declaring member variables and performing the necessary calculations to populate these variables, which were later either output directly to the page or used to control some conditional rendering action (such as adding a class name to an HTML element or not rendering another element at all).  This exhibited both of what I consider the primary heuristics (or code smells) indicating that the View is too smart: Member variables – in general, variables in View code are an indication that the Model to which the View is being bound is not sufficient for the needs of the View and that the View has had to augment that Model.  Notable exceptions to this guideline include variables used to hold information specifically related to rendering (such as a dynamically determined CSS class name or the depth within a recursive structure for indentation purposes) and variables which are used to facilitate looping through collections while binding. Arithmetic – as with member variables, the presence of arithmetic operators within View code are an indication that the Model servicing the View is insufficient for its needs.  For example, if the Model represents a line item in a sales order, it might seem perfectly natural to “normalize” the Model by storing the quantity and unit price in the Model and multiply these within the View to show the line total.  While this does seem natural, it introduces a business rule to the View code and makes it impossible to test that the rounding of the result meets the requirement of the business without executing the View.  Within View code, arithmetic should only be used for activities such as incrementing loop counters and calculating element widths. In addition to the two characteristics of a “Smart View” that I’ve discussed already, this View also exhibited another heuristic that commonly indicates to me the need to refactor a View and make it a bit less smart.  That characteristic is the existence of Boolean logic that either does not work directly with properties of the Model or works with too many properties of the Model.  Consider the following code and consider how logic that does not work directly with properties of the Model is just another form of the “member variable” heuristic covered earlier: @if(DateTime.Now.Hour < 12) {     <div>Good Morning!</div> } else {     <div>Greetings</div> } This code performs business logic to determine whether it is morning.  A possible refactoring would be to add an IsMorning property to the Model, but in this particular case there is enough similarity between the branches that the entire branching structure could be collapsed by adding a Greeting property to the Model and using it similarly to the following: <div>@Model.Greeting</div> Now let’s look at some complex logic around multiple Model properties: @if (ModelPageNumber + Model.NumbersToDisplay == Model.PageCount         || (Model.PageCount != Model.CurrentPage             && !Model.DisplayValues.Contains(Model.PageCount))) {     <div>There's more to see!</div> } In this scenario, not only is the View code difficult to read (you shouldn’t have to play “human compiler” to determine the purpose of the code), but it also complex enough to be at risk for logical errors that cannot be detected without executing the View.  Conditional logic that requires more than a single logical operator should be looked at more closely to determine whether the condition should be evaluated elsewhere and exposed as a single property of the Model.  Moving the logic above outside of the View and exposing a new Model property would simplify the View code to: @if(Model.HasMoreToSee) {     <div>There’s more to see!</div> } In this posting I have briefly discussed some of the more prominent heuristics that indicate a need to push code from the View into other pieces of the application.  You should now be able to recognize these symptoms when building or maintaining Views (or the Models that support them) in your applications.

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• Training a 'replacement', how to enforce standards?

  - by Mohgeroth

  Not sure that this is the right stack exchange site to ask this of, but here goes... Scope I work for a small company that employs a few hundred people. The development team for the company is small and works out of visual foxpro. A specific department in the company hired me in as a 'lone gunman' to fix and enhance a pre-existing invoicing system. I've successfully taken an Access application that suffered from a lot of risks and limitations and converted it into a C# application driven off of a SQL server backend. I have recently obtained my undergraduate and am no expert by any means. To help make up for that I've felt that earning microsoft certifications will force me to understand more about .net and how it functions. So, after giving my notice with 9 months in advance, 3 months ago a replacement finally showed up. Their role is to learn what I have been designing to an attempt to support the applications designed in C#. The Replacement Fresh out of college with no real-world work experience, the first instinct for anything involving data was and still is listboxes... any time data is mentioned the list box is the control of choice for the replacement. This has gotten to the point, no matter how many times I discuss other controls, where I've seen 5 listboxes on a single form. Classroom experience was almost all C++ console development. So, an example of where I have concern is in a winforms application: Users need to key Reasons into a table to select from later. Given that I know that a strongly typed data set exists, I can just drag the data source from the toolbox and it would create all of this for me. I realize this is a simple example but using databinding is the key. For the past few months now we have been talking about the strongly typed dataset, how to use it and where it interacts with other controls. Data sets, how they work in relation to binding sources, adapters and data grid views. After handing this project off I expected questions about how to implement these since for me this is the way to do it. What happened next simply floors me: An instance of an adapter from the strongly typed dataset was created in the activate event of the form, a table was created and filled with data. Then, a loop was made to manually add rows to a listbox from this table. Finally, a variable was kept to do lookups to figure out what ID the record was for updates if required. How do they modify records you ask? That was my first question too. You won't believe how simple it is, all you do it double click and they type into a pop-up prompt the new value to change it to. As a data entry operator, all the modal popups would drive me absolutely insane. The final solution exceeds 100 lines of code that must be maintained. So my concern is that none of this is sinking in... the department is only allowed 20 hours a week of their time. Up until last week, we've only been given 4-5 hours a week if I'm lucky. The past week or so, I've been lucky to get 10. Question WHAT DO I DO?! I have 4 weeks left until I leave and they fully 'support' this application. I love this job and the opportunity it has given me but it's time for me to spread my wings and find something new. I am in no way, shape or form convinced that they are ready to take over. I do feel that the replacement has the technical ability to 'figure it out' but instead of learning they just write code to do all of this stuff manually. If the replacement wants to code differently in the end, as long as it works I'm fine with that as horrifiying at it looks. However to support what I have designed they MUST to understand how it works and how I have used controls and the framework to make 'magic' happen. This project has about 40 forms, a database with over 30 some odd tables, triggers and stored procedures. It relates labor to invoices to contracts to projections... it's not as simple as it was three years ago when I began this project and the department is now in a position where they cannot survive without it. How in the world can I accomplish any of the following?: Enforce standards or understanding in constent design when the department manager keeps telling them they can do it however they want to Find a way to engage the replacement in active learning of the framework and system design that support must be given for Gracefully inform sr. management that 5-9 hours a week is simply not enough time to learn about the department, pre-existing processes, applications that need to be supported AND determine where potential enhancements to the system go... Yes I know this is a wall of text, thanks for reading through me but I simply don't know what I should be doing. For me, this job is a monster of a reference and things would look extremely bad if I left and things fell apart. How do I handle this?

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• YouTube Scalability Lessons

  - by Bertrand Matthelié

  @font-face { font-family: "Arial"; }@font-face { font-family: "Courier New"; }@font-face { font-family: "Wingdings"; }@font-face { font-family: "Calibri"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }h2 { margin: 12pt 0cm 3pt; page-break-after: avoid; font-size: 14pt; font-family: "Times New Roman"; font-style: italic; }a:link, span.MsoHyperlink { color: blue; text-decoration: underline; }a:visited, span.MsoHyperlinkFollowed { color: purple; text-decoration: underline; }span.Heading2Char { font-family: Calibri; font-weight: bold; font-style: italic; }div.Section1 { page: Section1; }ol { margin-bottom: 0cm; }ul { margin-bottom: 0cm; } Very interesting blog post by Todd Hoff at highscalability.com presenting “7 Years of YouTube Scalability Lessons in 30 min” based on a presentation from Mike Solomon, one of the original engineers at YouTube: …. The key takeaway away of the talk for me was doing a lot with really simple tools. While many teams are moving on to more complex ecosystems, YouTube really does keep it simple. They program primarily in Python, use MySQL as their database, they’ve stuck with Apache, and even new features for such a massive site start as a very simple Python program. That doesn’t mean YouTube doesn’t do cool stuff, they do, but what makes everything work together is more a philosophy or a way of doing things than technological hocus pocus. What made YouTube into one of the world’s largest websites? Read on and see... Stats @font-face { font-family: "Arial"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }div.Section1 { page: Section1; } 4 billion Views a day 60 hours of video is uploaded every minute 350+ million devices are YouTube enabled Revenue double in 2010 The number of videos has gone up 9 orders of magnitude and the number of developers has only gone up two orders of magnitude. 1 million lines of Python code Stack @font-face { font-family: "Arial"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: "Times New Roman"; }div.Section1 { page: Section1; } Python - most of the lines of code for YouTube are still in Python. Everytime you watch a YouTube video you are executing a bunch of Python code. Apache - when you think you need to get rid of it, you don’t. Apache is a real rockstar technology at YouTube because they keep it simple. Every request goes through Apache. Linux - the benefit of Linux is there’s always a way to get in and see how your system is behaving. No matter how bad your app is behaving, you can take a look at it with Linux tools like strace and tcpdump. MySQL - is used a lot. When you watch a video you are getting data from MySQL. Sometime it’s used a relational database or a blob store. It’s about tuning and making choices about how you organize your data. Vitess- a  new project released by YouTube, written in Go, it’s a frontend to MySQL. It does a lot of optimization on the fly, it rewrites queries and acts as a proxy. Currently it serves every YouTube database request. It’s RPC based. Zookeeper - a distributed lock server. It’s used for configuration. Really interesting piece of technology. Hard to use correctly so read the manual Wiseguy - a CGI servlet container. Spitfire - a templating system. It has an abstract syntax tree that let’s them do transformations to make things go faster. Serialization formats - no matter which one you use, they are all expensive. Measure. Don’t use pickle. Not a good choice. Found protocol buffers slow. They wrote their own BSON implementation, which is 10-15 time faster than the one you can download. ...Contiues. Read the blog Watch the video

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• How do I ensure that a JPanel Shrinks when the parent frame is resized?

  - by dah

  I have a basic notes panel that I'm looking to shrink the width of when the parent jframe is resized but it isn't happening. I'm using nested gridbaglayouts. package com.protocase.notes.views; import com.protocase.notes.controller.NotesController; import com.protocase.notes.model.Subject; import com.protocase.notes.model.Note; import com.protocase.notes.model.database.PMSNotesAdapter; import java.awt.Color; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JScrollPane; /** * @author DavidH */ public class NotesViewer extends JPanel { // <editor-fold defaultstate="collapsed" desc="Attributes"> private Subject subject; private NotesController controller; //</editor-fold> // <editor-fold defaultstate="collapsed" desc="Getters N' Setters"> /** * Gets back the current subject. * @return */ public Subject getSubject() { return subject; } public NotesController getController() { return controller; } public void setController(NotesController controller) { this.controller = controller; } /** * Should clear the panel of the current subject and load the details for * the other object. * @param subject */ public void setSubject(Subject subject) { this.subject = subject; } //</editor-fold> // <editor-fold defaultstate="collapsed" desc="Constructor"> /** * -- Sets up a note viewer with a subject and a controller. Likely this * would be the constructor used if you were passing off from another * NoteViewer or something else that used a notes adapter or controller. * @param subject * @param controller */ public NotesViewer(Subject subject, NotesController controller) { this.subject = subject; this.controller = controller; initComponents(); } /** * -- Sets up a note view with a subject and creates a new controller. This * would be the constructor typically chosen if choosing notes was * infrequent and only one or two notes needs to be displayed. * @param subject */ public NotesViewer(Subject subject) { this(subject, new NotesController(new PMSNotesAdapter())); } /** * -- Sets up a note view without a subject and creates a new controller. * This would be for a note viewer without any notes, perhaps populating * as you choose values in another form. * @param subject */ public NotesViewer() { this(null); } //</editor-fold> // <editor-fold defaultstate="collapsed" desc="initComponents()"> /** * Sets up the view for the NotesViewer */ private void initComponents() { // -- Make a new panel for the header JPanel panel = new JPanel(); panel.setLayout(new GridBagLayout()); GridBagConstraints c = new GridBagConstraints(); c.gridx = 0; c.fill = GridBagConstraints.HORIZONTAL; c.gridy = 0; c.weightx = .5; //c.anchor = GridBagConstraints.NORTHWEST; JLabel label = new JLabel("Viewing Notes for [Subject]"); label.setAlignmentX(JLabel.LEFT_ALIGNMENT); label.setBorder(BorderFactory.createLineBorder(Color.YELLOW)); panel.add(label); JButton newNoteButton = new JButton("New"); c = new GridBagConstraints(); // c.fill = GridBagConstraints.HORIZONTAL; c.gridx = 1; c.gridy = 0; c.weightx = .5; c.anchor = GridBagConstraints.EAST; panel.add(newNoteButton, c); // -- NotePanels c = new GridBagConstraints(); c.fill = GridBagConstraints.HORIZONTAL; c.weightx = 1; c.weighty = 1; c.gridx = 0; c.gridwidth = 2; int y = 1; for (Note n : subject.getNotes()) { c.gridy = y++; panel.add(new NotesPanel(n, controller), c); } this.setLayout(new GridBagLayout()); GridBagConstraints pc = new GridBagConstraints(); pc.gridx = 0; pc.gridy = 0; pc.weightx = 1; pc.weighty = 1; pc.fill = GridBagConstraints.BOTH; panel.setBackground(Color.blue); JScrollPane scroll = new JScrollPane(); scroll.setViewportView(panel); //scroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER); this.add(scroll, pc); //this.add(panel, pc); // -- Add it all to the layout } //</editor-fold> // <editor-fold defaultstate="collapsed" desc="private methods"> //</editor-fold> } package com.protocase.notes.views; import com.protocase.notes.controller.NotesController; import com.protocase.notes.model.Note; import java.awt.CardLayout; import java.awt.Color; import java.awt.Component; import java.awt.Dimension; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.text.DateFormat; import java.text.SimpleDateFormat; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.JTextField; import javax.swing.border.BevelBorder; import javax.swing.border.Border; import javax.swing.border.MatteBorder; /** * @author dah01 */ public class NotesPanel extends JPanel { // <editor-fold defaultstate="collapsed" desc="Attributes"> private Note note; private NotesController controller; private CardLayout cardLayout; private JTextArea viewTextArea; private JTextArea editTextArea; //</editor-fold> // <editor-fold defaultstate="collapsed" desc="Getters N' Setters"> public NotesController getController() { return controller; } public void setController(NotesController controller) { this.controller = controller; } public Note getNote() { return note; } public void setNote(Note note) { this.note = note; } //</editor-fold> // <editor-fold defaultstate="collapsed" desc="Constructor"> /** * Sets up a note panel that shows everything about the note. * @param note */ public NotesPanel(Note note, NotesController controller) { this.note = note; cardLayout = new CardLayout(); this.setLayout(cardLayout); // -- Setup the layout manager. this.setBackground(new Color(199, 187, 192)); this.setBorder(new BevelBorder(BevelBorder.RAISED)); // -- ViewPanel this.add("ViewPanel", initViewPanel()); this.add("EditPanel", initEditPanel()); } //</editor-fold> // <editor-fold defaultstate="collapsed" desc="EditPanel"> private JPanel initEditPanel() { JPanel editPanel = new JPanel(); editPanel.setLayout(new GridBagLayout()); GridBagConstraints c = new GridBagConstraints(); c.fill = GridBagConstraints.HORIZONTAL; c.gridy = 0; c.weightx = 1; c.weighty = 0.3; editPanel.add(initCreatorLabel(), c); c.gridy++; editPanel.add(initEditTextScroll(), c); c.gridy++; c.anchor = GridBagConstraints.WEST; c.fill = GridBagConstraints.NONE; editPanel.add(initEditorLabel(), c); c.gridx++; c.anchor = GridBagConstraints.EAST; editPanel.add(initSaveButton(), c); return editPanel; } private JScrollPane initEditTextScroll() { this.editTextArea = new JTextArea(note.getContents()); editTextArea.setLineWrap(true); editTextArea.setWrapStyleWord(true); JScrollPane scrollPane = new JScrollPane(editTextArea); scrollPane.setAlignmentX(JScrollPane.LEFT_ALIGNMENT); Border b = scrollPane.getViewportBorder(); MatteBorder mb = BorderFactory.createMatteBorder(2, 2, 2, 2, Color.BLUE); scrollPane.setBorder(mb); return scrollPane; } private JButton initSaveButton() { final CardLayout l = this.cardLayout; final JPanel p = this; final NotesController c = this.controller; final Note n = this.note; final JTextArea noteText = this.viewTextArea; final JTextArea textToSubmit = this.editTextArea; ActionListener al = new ActionListener() { @Override public void actionPerformed(ActionEvent e) { //controller.saveNote(n); noteText.setText(textToSubmit.getText()); l.next(p); } }; JButton saveButton = new JButton("Save"); saveButton.addActionListener(al); saveButton.setPreferredSize(new Dimension(62, 26)); return saveButton; } //</editor-fold> // <editor-fold defaultstate="collapsed" desc="ViewPanel"> private JPanel initViewPanel() { JPanel viewPanel = new JPanel(); viewPanel.setLayout(new GridBagLayout()); GridBagConstraints c = new GridBagConstraints(); c.fill = GridBagConstraints.HORIZONTAL ; c.gridy = 0; c.weightx = 1; c.weighty = 0.3; viewPanel.add(initCreatorLabel(), c); c.gridy++; viewPanel.add(this.initNoteTextArea(), c); c.fill = GridBagConstraints.NONE; c.anchor = GridBagConstraints.WEST; c.gridy++; viewPanel.add(initEditorLabel(), c); c.gridx++; c.anchor = GridBagConstraints.EAST; viewPanel.add(initEditButton(), c); return viewPanel; } private JLabel initCreatorLabel() { DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd"); if (note != null) { String noteBy = "Note by " + note.getCreator(); String noteCreated = formatter.format(note.getDateCreated()); JLabel creatorLabel = new JLabel(noteBy + " @ " + noteCreated); creatorLabel.setAlignmentX(JLabel.LEFT_ALIGNMENT); return creatorLabel; } else { System.out.println("NOTE IS NULL"); return null; } } private JScrollPane initNoteTextArea() { // -- Setup the notes area. this.viewTextArea = new JTextArea(note.getContents()); viewTextArea.setEditable(false); viewTextArea.setLineWrap(true); viewTextArea.setWrapStyleWord(true); JScrollPane scrollPane = new JScrollPane(viewTextArea); scrollPane.setAlignmentX(JScrollPane.LEFT_ALIGNMENT); return scrollPane; } private JLabel initEditorLabel() { // -- Setup the edited by label. JLabel editorLabel = new JLabel(" -- Last edited by " + note.getLastEdited() + " at " + note.getDateModified()); editorLabel.setAlignmentX(Component.LEFT_ALIGNMENT); return editorLabel; } private JButton initEditButton() { final CardLayout l = this.cardLayout; final JPanel p = this; ActionListener ar = new ActionListener() { @Override public void actionPerformed(ActionEvent e) { l.next(p); } }; JButton editButton = new JButton("Edit"); editButton.setPreferredSize(new Dimension(62,26)); editButton.addActionListener(ar); return editButton; } //</editor-fold> // <editor-fold defaultstate="collapsed" desc="Grow Width When Resized"> @Override public Dimension getPreferredSize() { int fw = this.getParent().getSize().width; int fh = super.getPreferredSize().height; return new Dimension(fw,fh); } //</editor-fold> }

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• Navigation in a #WP7 application with MVVM Light

  - by Laurent Bugnion

  In MVVM applications, it can be a bit of a challenge to send instructions to the view (for example a page) from a viewmodel. Thankfully, we have good tools at our disposal to help with that. In his excellent series “MVVM Light Toolkit soup to nuts”, Jesse Liberty proposes one approach using the MVVM Light messaging infrastructure. While this works fine, I would like to show here another approach using what I call a “view service”, i.e. an abstracted service that is invoked from the viewmodel, and implemented on the view. Multiple kinds of view services In fact, I use view services quite often, and even started standardizing them for the Windows Phone 7 applications I work on. If there is interest, I will be happy to show other such view services, for example Animation services, responsible to start/stop animations on the view. Dialog service, in charge of displaying messages to the user and gathering feedback. Navigation service, in charge of navigating to a given page directly from the viewmodel. In this article, I will concentrate on the navigation service. The INavigationService interface In most WP7 apps, the navigation service is used in quite a straightforward way. We want to: Navigate to a given URI. Go back. Be notified when a navigation is taking place, and be able to cancel. The INavigationService interface is quite simple indeed: public interface INavigationService { event NavigatingCancelEventHandler Navigating; void NavigateTo(Uri pageUri); void GoBack(); } Obviously, this interface can be extended if necessary, but in most of the apps I worked on, I found that this covers my needs. The NavigationService class It is possible to nicely pack the navigation service into its own class. To do this, we need to remember that all the PhoneApplicationPage instances use the same instance of the navigation service, exposed through their NavigationService property. In fact, in a WP7 application, it is the main frame (RootFrame, of type PhoneApplicationFrame) that is responsible for this task. So, our implementation of the NavigationService class can leverage this. First the class will grab the PhoneApplicationFrame and store a reference to it. Also, it registers a handler for the Navigating event, and forwards the event to the listening viewmodels (if any). Then, the NavigateTo and the GoBack methods are implemented. They are quite simple, because they are in fact just a gateway to the PhoneApplicationFrame. The whole class is as follows: public class NavigationService : INavigationService { private PhoneApplicationFrame _mainFrame; public event NavigatingCancelEventHandler Navigating; public void NavigateTo(Uri pageUri) { if (EnsureMainFrame()) { _mainFrame.Navigate(pageUri); } } public void GoBack() { if (EnsureMainFrame() && _mainFrame.CanGoBack) { _mainFrame.GoBack(); } } private bool EnsureMainFrame() { if (_mainFrame != null) { return true; } _mainFrame = Application.Current.RootVisual as PhoneApplicationFrame; if (_mainFrame != null) { // Could be null if the app runs inside a design tool _mainFrame.Navigating += (s, e) => { if (Navigating != null) { Navigating(s, e); } }; return true; } return false; } } Exposing URIs I find that it is a good practice to expose each page’s URI as a constant. In MVVM Light applications, a good place to do that is the ViewModelLocator, which already acts like a central point of setup for the views and their viewmodels. Note that in some cases, it is necessary to expose the URL as a string, for instance when a query string needs to be passed to the view. So for example we could have: public static readonly Uri MainPageUri = new Uri("/MainPage.xaml", UriKind.Relative); public const string AnotherPageUrl = "/AnotherPage.xaml?param1={0}&param2={1}"; Creating and using the NavigationService Normally, we only need one instance of the NavigationService class. In cases where you use an IOC container, it is easy to simply register a singleton instance. For example, I am using a modified version of a super simple IOC container, and so I can register the navigation service as follows: SimpleIoc.Register<INavigationService, NavigationService>(); Then, it can be resolved where needed with: SimpleIoc.Resolve<INavigationService>(); Or (more frequently), I simply declare a parameter on the viewmodel constructor of type INavigationService and let the IOC container do its magic and inject the instance of the NavigationService when the viewmodel is created. On supported platforms (for example Silverlight 4), it is also possible to use MEF. Or, of course, we can simply instantiate the NavigationService in the ViewModelLocator, and pass this instance as a parameter of the viewmodels’ constructor, injected as a property, etc… Once the instance has been passed to the viewmodel, it can be used, for example with: NavigationService.NavigateTo(ViewModelLocator.ComparisonPageUri); Testing Thanks to the INavigationService interface, navigation can be mocked and tested when the viewmodel is put under unit test. Simply implement and inject a mock class, and assert that the methods are called as they should by the viewmodel. Conclusion As usual, there are multiple ways to code a solution answering your needs. I find that view services are a really neat way to delegate view-specific responsibilities such as animation, dialogs and of course navigation to other classes through an abstracted interface. In some cases, such as the NavigationService class exposed here, it is even possible to standardize the implementation and pack it in a class library for reuse. I hope that this sample is useful! Happy coding. Laurent   Laurent Bugnion (GalaSoft) Subscribe | Twitter | Facebook | Flickr | LinkedIn

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• Quadratic Programming with Oracle R Enterprise

  - by Jeff Taylor-Oracle

       I wanted to use quadprog with ORE on a server running Oracle Solaris 11.2 on a Oracle SPARC T-4 server For background, see: Oracle SPARC T4-2 http://docs.oracle.com/cd/E23075_01/ Oracle Solaris 11.2 http://www.oracle.com/technetwork/server-storage/solaris11/overview/index.html quadprog: Functions to solve Quadratic Programming Problems http://cran.r-project.org/web/packages/quadprog/index.html Oracle R Enterprise 1.4 ("ORE") 1.4 http://www.oracle.com/technetwork/database/options/advanced-analytics/r-enterprise/ore-downloads-1502823.html Problem: path to Solaris Studio doesn't match my installation: $ ORE CMD INSTALL quadprog_1.5-5.tar.gz * installing to library \u2018/u01/app/oracle/product/12.1.0/dbhome_1/R/library\u2019 * installing *source* package \u2018quadprog\u2019 ... ** package \u2018quadprog\u2019 successfully unpacked and MD5 sums checked ** libs /opt/SunProd/studio12u3/solarisstudio12.3/bin/f95 -m64   -PIC  -g  -c aind.f -o aind.o bash: /opt/SunProd/studio12u3/solarisstudio12.3/bin/f95: No such file or directory *** Error code 1 make: Fatal error: Command failed for target `aind.o' ERROR: compilation failed for package \u2018quadprog\u2019 * removing \u2018/u01/app/oracle/product/12.1.0/dbhome_1/R/library/quadprog\u2019 $ ls -l /opt/solarisstudio12.3/bin/f95 lrwxrwxrwx   1 root     root          15 Aug 19 17:36 /opt/solarisstudio12.3/bin/f95 -> ../prod/bin/f90 Solution: a symbolic link: $ sudo mkdir -p /opt/SunProd/studio12u3 $ sudo ln -s /opt/solarisstudio12.3 /opt/SunProd/studio12u3/ Now, it is all good: $ ORE CMD INSTALL quadprog_1.5-5.tar.gz * installing to library \u2018/u01/app/oracle/product/12.1.0/dbhome_1/R/library\u2019 * installing *source* package \u2018quadprog\u2019 ... ** package \u2018quadprog\u2019 successfully unpacked and MD5 sums checked ** libs /opt/SunProd/studio12u3/solarisstudio12.3/bin/f95 -m64   -PIC  -g  -c aind.f -o aind.o /opt/SunProd/studio12u3/solarisstudio12.3/bin/ cc -xc99 -m64 -I/usr/lib/64/R/include -DNDEBUG -KPIC  -xlibmieee  -c init.c -o init.o /opt/SunProd/studio12u3/solarisstudio12.3/bin/f95 -m64  -PIC -g  -c -o solve.QP.compact.o solve.QP.compact.f /opt/SunProd/studio12u3/solarisstudio12.3/bin/f95 -m64  -PIC -g  -c -o solve.QP.o solve.QP.f /opt/SunProd/studio12u3/solarisstudio12.3/bin/f95 -m64   -PIC  -g  -c util.f -o util.o /opt/SunProd/studio12u3/solarisstudio12.3/bin/ cc -xc99 -m64 -G -o quadprog.so aind.o init.o solve.QP.compact.o solve.QP.o util.o -xlic_lib=sunperf -lsunmath -lifai -lsunimath -lfai -lfai2 -lfsumai -lfprodai -lfminlai -lfmaxlai -lfminvai -lfmaxvai -lfui -lfsu -lsunmath -lmtsk -lm -lifai -lsunimath -lfai -lfai2 -lfsumai -lfprodai -lfminlai -lfmaxlai -lfminvai -lfmaxvai -lfui -lfsu -lsunmath -lmtsk -lm -L/usr/lib/64/R/lib -lR installing to /u01/app/oracle/product/12.1.0/dbhome_1/R/library/quadprog/libs ** R ** preparing package for lazy loading ** help *** installing help indices   converting help for package \u2018quadprog\u2019     finding HTML links ... done     solve.QP                                html      solve.QP.compact                        html  ** building package indices ** testing if installed package can be loaded * DONE (quadprog) ====== Here is an example from http://cran.r-project.org/web/packages/quadprog/quadprog.pdf > require(quadprog) > Dmat <- matrix(0,3,3) > diag(Dmat) <- 1 > dvec <- c(0,5,0) > Amat <- matrix(c(-4,-3,0,2,1,0,0,-2,1),3,3) > bvec <- c(-8,2,0) > solve.QP(Dmat,dvec,Amat,bvec=bvec) $solution [1] 0.4761905 1.0476190 2.0952381 $value [1] -2.380952 $unconstrained.solution [1] 0 5 0 $iterations [1] 3 0 $Lagrangian [1] 0.0000000 0.2380952 2.0952381 $iact [1] 3 2 Here, the standard example is modified to work with Oracle R Enterprise require(ORE) ore.connect("my-name", "my-sid", "my-host", "my-pass", 1521) ore.doEval(   function () {     require(quadprog)   } ) ore.doEval(   function () {     Dmat <- matrix(0,3,3)     diag(Dmat) <- 1     dvec <- c(0,5,0)     Amat <- matrix(c(-4,-3,0,2,1,0,0,-2,1),3,3)     bvec <- c(-8,2,0)    solve.QP(Dmat,dvec,Amat,bvec=bvec)   } ) $solution [1] 0.4761905 1.0476190 2.0952381 $value [1] -2.380952 $unconstrained.solution [1] 0 5 0 $iterations [1] 3 0 $Lagrangian [1] 0.0000000 0.2380952 2.0952381 $iact [1] 3 2 Now I can combine the quadprog compute algorithms with the Oracle R Enterprise Database engine functionality: Scale to large datasets Access to tables, views, and external tables in the database, as well as those accessible through database links Use SQL query parallel execution Use in-database statistical and data mining functionality

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• Processing Text and Binary (Blob, ArrayBuffer, ArrayBufferView) Payload in WebSocket - (TOTD #185)

  - by arungupta

  The WebSocket API defines different send(xxx) methods that can be used to send text and binary data. This Tip Of The Day (TOTD) will show how to send and receive text and binary data using WebSocket. TOTD #183 explains how to get started with a WebSocket endpoint using GlassFish 4. A simple endpoint from that blog looks like: @WebSocketEndpoint("/endpoint") public class MyEndpoint { public void receiveTextMessage(String message) { . . . } } A message with the first parameter of the type String is invoked when a text payload is received. The payload of the incoming WebSocket frame is mapped to this first parameter. An optional second parameter, Session, can be specified to map to the "other end" of this conversation. For example: public void receiveTextMessage(String message, Session session) {     . . . } The return type is void and that means no response is returned to the client that invoked this endpoint. A response may be returned to the client in two different ways. First, set the return type to the expected type, such as: public String receiveTextMessage(String message) { String response = . . . . . . return response; } In this case a text payload is returned back to the invoking endpoint. The second way to send a response back is to use the mapped session to send response using one of the sendXXX methods in Session, when and if needed. public void receiveTextMessage(String message, Session session) {     . . .     RemoteEndpoint remote = session.getRemote();     remote.sendString(...);     . . .     remote.sendString(...);    . . .    remote.sendString(...); } This shows how duplex and asynchronous communication between the two endpoints can be achieved. This can be used to define different message exchange patterns between the client and server. The WebSocket client can send the message as: websocket.send(myTextField.value); where myTextField is a text field in the web page. Binary payload in the incoming WebSocket frame can be received if ByteBuffer is used as the first parameter of the method signature. The endpoint method signature in that case would look like: public void receiveBinaryMessage(ByteBuffer message) {     . . . } From the client side, the binary data can be sent using Blob, ArrayBuffer, and ArrayBufferView. Blob is a just raw data and the actual interpretation is left to the application. ArrayBuffer and ArrayBufferView are defined in the TypedArray specification and are designed to send binary data using WebSocket. In short, ArrayBuffer is a fixed-length binary buffer with no format and no mechanism for accessing its contents. These buffers are manipulated using one of the views defined by one of the subclasses of ArrayBufferView listed below: Int8Array (signed 8-bit integer or char) Uint8Array (unsigned 8-bit integer or unsigned char) Int16Array (signed 16-bit integer or short) Uint16Array (unsigned 16-bit integer or unsigned short) Int32Array (signed 32-bit integer or int) Uint32Array (unsigned 16-bit integer or unsigned int) Float32Array (signed 32-bit float or float) Float64Array (signed 64-bit float or double) WebSocket can send binary data using ArrayBuffer with a view defined by a subclass of ArrayBufferView or a subclass of ArrayBufferView itself. The WebSocket client can send the message using Blob as: blob = new Blob([myField2.value]);websocket.send(blob); where myField2 is a text field in the web page. The WebSocket client can send the message using ArrayBuffer as: var buffer = new ArrayBuffer(10);var bytes = new Uint8Array(buffer);for (var i=0; i<bytes.length; i++) { bytes[i] = i;}websocket.send(buffer); A concrete implementation of receiving the binary message may look like: @WebSocketMessagepublic void echoBinary(ByteBuffer data, Session session) throws IOException {    System.out.println("echoBinary: " + data);    for (byte b : data.array()) {        System.out.print(b);    }    session.getRemote().sendBytes(data);} This method is just printing the binary data for verification but you may actually be storing it in a database or converting to an image or something more meaningful. Be aware of TYRUS-51 if you are trying to send binary data from server to client using method return type. Here are some references for you: JSR 356: Java API for WebSocket - Specification (Early Draft) and Implementation (already integrated in GlassFish 4 promoted builds) TOTD #183 - Getting Started with WebSocket in GlassFish TOTD #184 - Logging WebSocket Frames using Chrome Developer Tools, Net-internals and Wireshark Subsequent blogs will discuss the following topics (not necessary in that order) ... Error handling Custom payloads using encoder/decoder Interface-driven WebSocket endpoint Java client API Client and Server configuration Security Subprotocols Extensions Other topics from the API

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• How can I implement a database TableView like thing in C++?

  - by Industrial-antidepressant

  How can I implement a TableView like thing in C++? I want to emulating a tiny relation database like thing in C++. I have data tables, and I want to transform it somehow, so I need a TableView like class. I want filtering, sorting, freely add and remove items and transforming (ex. view as UPPERCASE and so on). The whole thing is inside a GUI application, so datatables and views are attached to a GUI (or HTML or something). So how can I identify an item in the view? How can I signal it when the table is changed? Is there some design pattern for this? Here is a simple table, and a simple data item: #include <string> #include <boost/multi_index_container.hpp> #include <boost/multi_index/member.hpp> #include <boost/multi_index/ordered_index.hpp> #include <boost/multi_index/random_access_index.hpp> using boost::multi_index_container; using namespace boost::multi_index; struct Data { Data() {} int id; std::string name; }; struct row{}; struct id{}; struct name{}; typedef boost::multi_index_container< Data, indexed_by< random_access<tag<row> >, ordered_unique<tag<id>, member<Data, int, &Data::id> >, ordered_unique<tag<name>, member<Data, std::string, &Data::name> > > > TDataTable; class DataTable { public: typedef Data item_type; typedef TDataTable::value_type value_type; typedef TDataTable::const_reference const_reference; typedef TDataTable::index<row>::type TRowIndex; typedef TDataTable::index<id>::type TIdIndex; typedef TDataTable::index<name>::type TNameIndex; typedef TRowIndex::iterator iterator; DataTable() : row_index(rule_table.get<row>()), id_index(rule_table.get<id>()), name_index(rule_table.get<name>()), row_index_writeable(rule_table.get<row>()) { } TDataTable::const_reference operator[](TDataTable::size_type n) const { return rule_table[n]; } std::pair<iterator,bool> push_back(const value_type& x) { return row_index_writeable.push_back(x); } iterator erase(iterator position) { return row_index_writeable.erase(position); } bool replace(iterator position,const value_type& x) { return row_index_writeable.replace(position, x); } template<typename InputIterator> void rearrange(InputIterator first) { return row_index_writeable.rearrange(first); } void print_table() const; unsigned size() const { return row_index.size(); } TDataTable rule_table; const TRowIndex& row_index; const TIdIndex& id_index; const TNameIndex& name_index; private: TRowIndex& row_index_writeable; }; class DataTableView { DataTableView(const DataTable& source_table) {} // How can I implement this? // I want filtering, sorting, signaling upper GUI layer, and sorting, and ... }; int main() { Data data1; data1.id = 1; data1.name = "name1"; Data data2; data2.id = 2; data2.name = "name2"; DataTable table; table.push_back(data1); DataTable::iterator it1 = table.row_index.iterator_to(table[0]); table.erase(it1); table.push_back(data1); Data new_data(table[0]); new_data.name = "new_name"; table.replace(table.row_index.iterator_to(table[0]), new_data); for (unsigned i = 0; i < table.size(); ++i) std::cout << table[i].name << std::endl; #if 0 // using scenarios: DataTableView table_view(table); table_view.fill_from_source(); // synchronization with source table_view.remove(data_item1); // remove item from view table_view.add(data_item2); // add item from source table table_view.filter(filterfunc); // filtering table_view.sort(sortfunc); // sorting // modifying from source_able, hot to signal the table_view? // FYI: Table view is atteched to a GUI item table.erase(data); table.replace(data); #endif return 0; }

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• YouTube SEO: Video Optimization

  - by Mike Stiles

  SEO optimization is still regarded as one of the primary tools in the digital marketing kit. However and wherever a potential customer is conducting a search, brands want their content to surface in the top results. Makes sense. But without a regular flow of good, relevant content, your SEO opportunities run shallow. We know from several studies video is one of the most engaging forms of content, so why not make sure that in addition to being cool, your videos are helping you win the SEO game? Keywords:-Decide what search phrases make the most sense for your video. Don’t dare use phrases that have nothing to do with the content. You’ll make people mad.-Research those keywords to see how competitive they are. Adjust them so there are still lots of people searching for it, but there are not as many links showing up for it.-Search your potential keywords and phrases to see what comes up. It’s amazing how many people forget to do that. Video Title: -Try to start and/or end with your keyword.-When you search on YouTube, visual action words tend to come up as suggested searches. So try to use action words. Video Description: -Lead with a link to your site (include http://). -Don’t stuff this with your keyword. It leads to bad writing and it won’t work anyway. This is where you convince people to watch, so write for humans. Use some showmanship. -At the end, do a call to action (subscribe, see the whole playlist, visit our social channels, etc.) Video Tags:-Don’t over-tag. 5-10 tags per video is plenty. -If you’re compelled to have more than 10, that means you should probably make more videos specifically targeting all those keywords. Find Linking Pals:-45% of videos are discovered on video sites. But 44% are found through links on blogs and sites.-Write a blog about your video’s content, then link to the video in it. -A good site for finding places to guest blog is myblogguest.com-Once you find good linking partners, they’ll link to your future videos (as long as they’re good and you’re returning the favor). Tap the Power of Similar Videos:-Use Video Reply to associate your video with other topic-related videos. That’s when you make a video responding to or referencing a video made by someone else. Content:-Again, build up a portfolio of videos, not just one that goes after 30 keywords.-Create shorter, sequential videos that pull them deeper into the content and closer to a desired final action.-Organize your video topics separately using Playlists. Playlists show up as a whole in search results like individual videos, so optimize playlists the same as you would for a video. Meta Data:-Too much importance is placed on it. It accounts for only 15% of search success.-YouTube reads Captions or Transcripts to determine what a video is about. If you’re not using them, you’re missing out.-You get the SEO benefit of captions and transcripts whether the viewers has them toggled on or not. Promotion:-This accounts for 25% of search success.-Promote the daylights out of your videos using your social channels and digital assets. Don’t assume it’s going to magically get discovered. -You can pay to promote your video. This could surface it on the YouTube home page, YouTube search results, YouTube related videos, and across the Google content network. Community:-Accounts for 10% of search success.-Make sure your YouTube home page is a fun place to spend time. Carefully pick your featured video, and make sure your Playlists are featured. -Participate in discussions so users will see you’re present. The volume of ratings/comments is as important as the number of views when it comes to where you surface on search. Video Sitemaps:-As with a web site, a video sitemap helps Google quickly index your video.-Google wants to know title, description, play page URL, the URL of the thumbnail image you want, and raw video file location.-Sitemaps are xml files you host or dynamically generate on your site. Once you’ve made your sitemap, sign in and submit it using Google webmaster tools. Just as with the broadcast and cable TV channels, putting a video out there is only step one. You also have to make sure everybody knows it’s there so the largest audience possible can see it. Here’s hoping you get great ratings. @mikestiles

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• CakePhp on IIS: How can I Edit URL Rewrite module for SSL Redirects

  - by AdrianB

  I've not dealt much with IIS rewrites, but I was able to import (and edit) the rewrites found throughout the cake structure (.htaccess files). I'll explain my configuration a little, then get to the meat of the problem. So my Cake php framework is working well and made possible by the url rewrite module 2.0 which I have successfully installed and configured for the site. The way cake is set up, the webroot folder (for cake, not iis) is set as the default folder for the site and exists inside the following hierarchy inetpub -wwwroot --cakePhp root ---application ----models ----views ----controllers ----WEBROOT // *** HERE *** ---cake core --SomeOtherSite Folder For this implementation, the url rewrite module uses the following rules (from the web.config file) ... <rewrite> <rules> <rule name="Imported Rule 1" stopProcessing="true"> <match url="^(.*)$" ignoreCase="false" /> <conditions logicalGrouping="MatchAll"> <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" /> <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" /> </conditions> <action type="Rewrite" url="index.php?url={R:1}" appendQueryString="true" /> </rule> <rule name="Imported Rule 2" stopProcessing="true"> <match url="^$" ignoreCase="false" /> <action type="Rewrite" url="/" /> </rule> <rule name="Imported Rule 3" stopProcessing="true"> <match url="(.*)" ignoreCase="false" /> <action type="Rewrite" url="/{R:1}" /> </rule> <rule name="Imported Rule 4" stopProcessing="true"> <match url="^(.*)$" ignoreCase="false" /> <conditions logicalGrouping="MatchAll"> <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" /> <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" /> </conditions> <action type="Rewrite" url="index.php?url={R:1}" appendQueryString="true" /> </rule> </rules> </rewrite> I've Installed my SSL certificate and created a site binding so that if i use the https:// protocol, everything is working fine within the site. I fear that attempts I have made at creating a rewrite are too far off base to understand results. The rules need to switch protocol without affecting the current set of rules which pass along url components to index.php (which is cake's entry point). My goal is this- Create a couple of rewrite rules that will [#1] redirect all user pages (in this general form http://domain.com/users/page/param/param/?querystring=value ) to use SSL and then [#2} direct all other https requests to use http (is this is even necessary?). [e.g. http://domain.com/users/login , http://domain.com/users/profile/uid:12345 , http://domain.com/users/payments?firsttime=true] ] to all use SSL [e.g. https://domain.com/users/login , https://domain.com/users/profile/uid:12345 , https://domain.com/users/payments?firsttime=true] ] Any help would be greatly appreciated.

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• problem in run oracle server please help

  - by rima

  I used Oracle 11g, from few days ago I face below error: SQL*Plus: Release 11.2.0.1.0 Production on Thu Apr 7 07:33:19 2011 Copyright (c) 1982, 2010, Oracle. All rights reserved. Enter user-name: pentacms Enter password: ERROR: ORA-01033: ORACLE initialization or shutdown in progress Process ID: 0 Session ID: 0 Serial number: 0 Enter user-name: I try to solve the error, but it raised an other error, I try to open log file but I receive below error(last line) "ERROR at line 1: ORA-00600: internal error code, arguments: [kcratr_nab_less_than_odr], [1], [46], [32689], [32690], [], [], [], [], [], [], [] " please advice me, It's an emergency case. FIXED_TABLE_SEQUENCE ROW_WAIT_OBJ# ROW_WAIT_FILE# ROW_WAIT_BLOCK# ROW_WAIT_ROW# -------------------- ------------- -------------- --------------- ------------- TOP_LEVEL_CALL# LOGON_TIM LAST_CALL_ET PDM FAILOVER_TYPE FAILOVER_M FAI --------------- --------- ------------ --- ------------- ---------- --- RESOURCE_CONSUMER_GROUP PDML_STA PDDL_STA PQ_STATU -------------------------------- -------- -------- -------- CURRENT_QUEUE_DURATION ---------------------- CLIENT_IDENTIFIER BLOCKING_SE ---------------------------------------------------------------- ----------- BLOCKING_INSTANCE BLOCKING_SESSION FINAL_BLOCK FINAL_BLOCKING_INSTANCE ----------------- ---------------- ----------- ----------------------- FINAL_BLOCKING_SESSION SEQ# EVENT# ---------------------- ---------- ---------- EVENT ---------------------------------------------------------------- P1TEXT P1 ---------------------------------------------------------------- ---------- P1RAW ---------------- P2TEXT P2 ---------------------------------------------------------------- ---------- P2RAW ---------------- P3TEXT P3 ---------------------------------------------------------------- ---------- P3RAW WAIT_CLASS_ID WAIT_CLASS# ---------------- ------------- ----------- WAIT_CLASS WAIT_TIME ---------------------------------------------------------------- ---------- SECONDS_IN_WAIT STATE WAIT_TIME_MICRO TIME_REMAINING_MICRO --------------- ------------------- --------------- -------------------- TIME_SINCE_LAST_WAIT_MICRO -------------------------- SERVICE_NAME SQL_TRAC SQL_T ---------------------------------------------------------------- -------- ----- SQL_T SQL_TRACE_ SESSION_EDITION_ID CREATOR_ADDR CREATOR_SERIAL# ----- ---------- ------------------ ---------------- --------------- ECID ---------------------------------------------------------------- SYS$USERS DISABLED FALSE SADDR SID SERIAL# AUDSID PADDR USER# ---------------- ---------- ---------- ---------- ---------------- ---------- USERNAME COMMAND OWNERID TADDR ------------------------------ ---------- ---------- ---------------- LOCKWAIT STATUS SERVER SCHEMA# SCHEMANAME ---------------- -------- --------- ---------- ------------------------------ OSUSER PROCESS ------------------------------ ------------------------ MACHINE PORT ---------------------------------------------------------------- ---------- TERMINAL ---------------- PROGRAM TYPE ---------------------------------------------------------------- ---------- SQL_ADDRESS SQL_HASH_VALUE SQL_ID SQL_CHILD_NUMBER SQL_EXEC_ ---------------- -------------- ------------- ---------------- --------- SQL_EXEC_ID PREV_SQL_ADDR PREV_HASH_VALUE PREV_SQL_ID PREV_CHILD_NUMBER ----------- ---------------- --------------- ------------- ----------------- PREV_EXEC PREV_EXEC_ID PLSQL_ENTRY_OBJECT_ID PLSQL_ENTRY_SUBPROGRAM_ID --------- ------------ --------------------- ------------------------- PLSQL_OBJECT_ID PLSQL_SUBPROGRAM_ID --------------- ------------------- MODULE MODULE_HASH ------------------------------------------------ ----------- ACTION ACTION_HASH -------------------------------- ----------- CLIENT_INFO ---------------------------------------------------------------- FIXED_TABLE_SEQUENCE ROW_WAIT_OBJ# ROW_WAIT_FILE# ROW_WAIT_BLOCK# ROW_WAIT_ROW# -------------------- ------------- -------------- --------------- ------------- TOP_LEVEL_CALL# LOGON_TIM LAST_CALL_ET PDM FAILOVER_TYPE FAILOVER_M FAI --------------- --------- ------------ --- ------------- ---------- --- RESOURCE_CONSUMER_GROUP PDML_STA PDDL_STA PQ_STATU -------------------------------- -------- -------- -------- CURRENT_QUEUE_DURATION ---------------------- CLIENT_IDENTIFIER BLOCKING_SE ---------------------------------------------------------------- ----------- BLOCKING_INSTANCE BLOCKING_SESSION FINAL_BLOCK FINAL_BLOCKING_INSTANCE ----------------- ---------------- ----------- ----------------------- FINAL_BLOCKING_SESSION SEQ# EVENT# ---------------------- ---------- ---------- EVENT ---------------------------------------------------------------- P1TEXT P1 ---------------------------------------------------------------- ---------- P1RAW ---------------- P2TEXT P2 ---------------------------------------------------------------- ---------- P2RAW ---------------- P3TEXT P3 ---------------------------------------------------------------- ---------- P3RAW WAIT_CLASS_ID WAIT_CLASS# ---------------- ------------- ----------- WAIT_CLASS WAIT_TIME ---------------------------------------------------------------- ---------- SECONDS_IN_WAIT STATE WAIT_TIME_MICRO TIME_REMAINING_MICRO --------------- ------------------- --------------- -------------------- TIME_SINCE_LAST_WAIT_MICRO -------------------------- SERVICE_NAME SQL_TRAC SQL_T ---------------------------------------------------------------- -------- ----- SQL_T SQL_TRACE_ SESSION_EDITION_ID CREATOR_ADDR CREATOR_SERIAL# ----- ---------- ------------------ ---------------- --------------- ECID ---------------------------------------------------------------- FALSE FIRST EXEC 0 000007FF5D4D8D70 2 SADDR SID SERIAL# AUDSID PADDR USER# ---------------- ---------- ---------- ---------- ---------------- ---------- USERNAME COMMAND OWNERID TADDR ------------------------------ ---------- ---------- ---------------- LOCKWAIT STATUS SERVER SCHEMA# SCHEMANAME ---------------- -------- --------- ---------- ------------------------------ OSUSER PROCESS ------------------------------ ------------------------ MACHINE PORT ---------------------------------------------------------------- ---------- TERMINAL ---------------- PROGRAM TYPE ---------------------------------------------------------------- ---------- SQL_ADDRESS SQL_HASH_VALUE SQL_ID SQL_CHILD_NUMBER SQL_EXEC_ ---------------- -------------- ------------- ---------------- --------- SQL_EXEC_ID PREV_SQL_ADDR PREV_HASH_VALUE PREV_SQL_ID PREV_CHILD_NUMBER ----------- ---------------- --------------- ------------- ----------------- PREV_EXEC PREV_EXEC_ID PLSQL_ENTRY_OBJECT_ID PLSQL_ENTRY_SUBPROGRAM_ID --------- ------------ --------------------- ------------------------- PLSQL_OBJECT_ID PLSQL_SUBPROGRAM_ID --------------- ------------------- MODULE MODULE_HASH ------------------------------------------------ ----------- ACTION ACTION_HASH -------------------------------- ----------- CLIENT_INFO ---------------------------------------------------------------- FIXED_TABLE_SEQUENCE ROW_WAIT_OBJ# ROW_WAIT_FILE# ROW_WAIT_BLOCK# ROW_WAIT_ROW# -------------------- ------------- -------------- --------------- ------------- TOP_LEVEL_CALL# LOGON_TIM LAST_CALL_ET PDM FAILOVER_TYPE FAILOVER_M FAI --------------- --------- ------------ --- ------------- ---------- --- RESOURCE_CONSUMER_GROUP PDML_STA PDDL_STA PQ_STATU -------------------------------- -------- -------- -------- CURRENT_QUEUE_DURATION ---------------------- CLIENT_IDENTIFIER BLOCKING_SE ---------------------------------------------------------------- ----------- BLOCKING_INSTANCE BLOCKING_SESSION FINAL_BLOCK FINAL_BLOCKING_INSTANCE ----------------- ---------------- ----------- ----------------------- FINAL_BLOCKING_SESSION SEQ# EVENT# ---------------------- ---------- ---------- EVENT ---------------------------------------------------------------- P1TEXT P1 ---------------------------------------------------------------- ---------- P1RAW ---------------- P2TEXT P2 ---------------------------------------------------------------- ---------- P2RAW ---------------- P3TEXT P3 ---------------------------------------------------------------- ---------- P3RAW WAIT_CLASS_ID WAIT_CLASS# ---------------- ------------- ----------- WAIT_CLASS WAIT_TIME ---------------------------------------------------------------- ---------- SECONDS_IN_WAIT STATE WAIT_TIME_MICRO TIME_REMAINING_MICRO --------------- ------------------- --------------- -------------------- TIME_SINCE_LAST_WAIT_MICRO -------------------------- SERVICE_NAME SQL_TRAC SQL_T ---------------------------------------------------------------- -------- ----- SQL_T SQL_TRACE_ SESSION_EDITION_ID CREATOR_ADDR CREATOR_SERIAL# ----- ---------- ------------------ ---------------- --------------- ECID ---------------------------------------------------------------- SADDR SID SERIAL# AUDSID PADDR USER# ---------------- ---------- ---------- ---------- ---------------- ---------- USERNAME COMMAND OWNERID TADDR ------------------------------ ---------- ---------- ---------------- LOCKWAIT STATUS SERVER SCHEMA# SCHEMANAME ---------------- -------- --------- ---------- ------------------------------ OSUSER PROCESS ------------------------------ ------------------------ MACHINE PORT ---------------------------------------------------------------- ---------- TERMINAL ---------------- PROGRAM TYPE ---------------------------------------------------------------- ---------- SQL_ADDRESS SQL_HASH_VALUE SQL_ID SQL_CHILD_NUMBER SQL_EXEC_ ---------------- -------------- ------------- ---------------- --------- SQL_EXEC_ID PREV_SQL_ADDR PREV_HASH_VALUE PREV_SQL_ID PREV_CHILD_NUMBER ----------- ---------------- --------------- ------------- ----------------- PREV_EXEC PREV_EXEC_ID PLSQL_ENTRY_OBJECT_ID PLSQL_ENTRY_SUBPROGRAM_ID --------- ------------ --------------------- ------------------------- PLSQL_OBJECT_ID PLSQL_SUBPROGRAM_ID --------------- ------------------- MODULE MODULE_HASH ------------------------------------------------ ----------- ACTION ACTION_HASH -------------------------------- ----------- CLIENT_INFO ---------------------------------------------------------------- FIXED_TABLE_SEQUENCE ROW_WAIT_OBJ# ROW_WAIT_FILE# ROW_WAIT_BLOCK# ROW_WAIT_ROW# -------------------- ------------- -------------- --------------- ------------- TOP_LEVEL_CALL# LOGON_TIM LAST_CALL_ET PDM FAILOVER_TYPE FAILOVER_M FAI --------------- --------- ------------ --- ------------- ---------- --- RESOURCE_CONSUMER_GROUP PDML_STA PDDL_STA PQ_STATU -------------------------------- -------- -------- -------- CURRENT_QUEUE_DURATION ---------------------- CLIENT_IDENTIFIER BLOCKING_SE ---------------------------------------------------------------- ----------- BLOCKING_INSTANCE BLOCKING_SESSION FINAL_BLOCK FINAL_BLOCKING_INSTANCE ----------------- ---------------- ----------- ----------------------- FINAL_BLOCKING_SESSION SEQ# EVENT# ---------------------- ---------- ---------- EVENT ---------------------------------------------------------------- P1TEXT P1 ---------------------------------------------------------------- ---------- P1RAW ---------------- P2TEXT P2 ---------------------------------------------------------------- ---------- P2RAW ---------------- P3TEXT P3 ---------------------------------------------------------------- ---------- P3RAW WAIT_CLASS_ID WAIT_CLASS# ---------------- ------------- ----------- WAIT_CLASS WAIT_TIME ---------------------------------------------------------------- ---------- SECONDS_IN_WAIT STATE WAIT_TIME_MICRO TIME_REMAINING_MICRO --------------- ------------------- --------------- -------------------- TIME_SINCE_LAST_WAIT_MICRO -------------------------- SERVICE_NAME SQL_TRAC SQL_T ---------------------------------------------------------------- -------- ----- SQL_T SQL_TRACE_ SESSION_EDITION_ID CREATOR_ADDR CREATOR_SERIAL# ----- ---------- ------------------ ---------------- --------------- ECID ---------------------------------------------------------------- 16 rows selected. SQL> desc dba_user; ERROR: ORA-04043: object dba_user does not exist SQL> desc dba_users; ERROR: ORA-04043: object dba_users does not exist SQL> desc v$user; ERROR: ORA-04043: object v$user does not exist SQL> desc v$users ERROR: ORA-04043: object v$users does not exist SQL> seleect * from dba_users; SP2-0734: unknown command beginning "seleect * ..." - rest of line ignored. SQL> select * from dba_users; select * from dba_users * ERROR at line 1: ORA-01219: database not open: queries allowed on fixed tables/views only SQL> alter database open; alter database open * ERROR at line 1: ORA-00600: internal error code, arguments: [kcratr_nab_less_than_odr], [1], [46], [32689], [32690], [], [], [], [], [], [], [] SQL> alter database mount; alter database mount * ERROR at line 1: ORA-01100: database already mounted SQL> alter database mount;

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• Rails app deployment challenge, not finding database table in production.log

  - by Stefan M

  I'm trying to setup PasswordPusher as my first ruby app ever. Building and running the webrick server as instructed in README works fine. It was only when I tried to add Apache ProxyPass and ProxyPassReverse that the page load slowed down to several minutes. So I gave mod_passenger a whirl but now it's unable to find the password table. Here's what I get in log/production.log. Started GET "/" for 10.10.2.13 at Sun Jun 10 08:07:19 +0200 2012 Processing by PasswordsController#new as HTML Completed 500 Internal Server Error in 1ms ActiveRecord::StatementInvalid (Could not find table 'passwords'): app/controllers/passwords_controller.rb:77:in `new' app/controllers/passwords_controller.rb:77:in `new' While in log/private.log I get a lot more output so here's just a snippet but it looks to me like it's working with the database. Edit: This was actually old log output, maybe from db:create. Migrating to AddUserToPassword (20120220172426) (0.3ms) ALTER TABLE "passwords" ADD "user_id" integer (0.0ms) PRAGMA index_list("passwords") (0.2ms) CREATE INDEX "index_passwords_on_user_id" ON "passwords" ("user_id") (0.7ms) INSERT INTO "schema_migrations" ("version") VALUES ('20120220172426') (0.1ms) select sqlite_version(*) (0.1ms) SELECT "schema_migrations"."version" FROM "schema_migrations" (0.0ms) PRAGMA index_list("passwords") (0.0ms) PRAGMA index_info('index_passwords_on_user_id') (4.6ms) PRAGMA index_list("rails_admin_histories") (0.0ms) PRAGMA index_info('index_rails_admin_histories') (0.0ms) PRAGMA index_list("users") (4.8ms) PRAGMA index_info('index_users_on_unlock_token') (0.0ms) PRAGMA index_info('index_users_on_reset_password_token') (0.0ms) PRAGMA index_info('index_users_on_email') (0.0ms) PRAGMA index_list("views") In my vhost I have it set to use RailsEnv private. <VirtualHost *:80> # ProxyPreserveHost on # # ProxyPass / http://10.220.100.209:180/ # ProxyPassReverse / http://10.220.100.209:180/ DocumentRoot /var/www/pwpusher/public <Directory /var/www/pwpusher/public> allow from all Options -MultiViews </Directory> RailsEnv private ServerName pwpush.intranet ErrorLog /var/log/apache2/error.log LogLevel debug CustomLog /var/log/apache2/access.log combined </VirtualHost> My passenger.conf in mods-enabled is default for Debian. <IfModule mod_passenger.c> PassengerRoot /usr PassengerRuby /usr/bin/ruby </IfModule> In the apache error.log I get something more cryptic to me. [Sun Jun 10 06:25:07 2012] [notice] Apache/2.2.16 (Debian) Phusion_Passenger/2.2.11 PHP/5.3.3-7+squeeze9 with Suhosin-Patch mod_ssl/2.2.16 OpenSSL/0.9.8o configured -- resuming normal operations /var/www/pwpusher/vendor/bundle/ruby/1.8/bundler/gems/modernizr-rails-09e9e6a92d67/lib/modernizr/rails/version.rb:3: warning: already initialized constant VERSION cache: [GET /] miss [Sun Jun 10 08:07:19 2012] [debug] mod_deflate.c(615): [client 10.10.2.13] Zlib: Compressed 728 to 423 : URL / /var/www/pwpusher/vendor/bundle/ruby/1.8/bundler/gems/modernizr-rails-09e9e6a92d67/lib/modernizr/rails/version.rb:3: warning: already initialized constant VERSION cache: [GET /] miss [Sun Jun 10 10:17:16 2012] [debug] mod_deflate.c(615): [client 10.10.2.13] Zlib: Compressed 728 to 423 : URL / Maybe that's routine stuff. I can see the rake command create files in the relative app root db/. I have private.sqlite3, production.sqlite3 among others. And here's my config/database.yml. base: &base adapter: sqlite3 timeout: 5000 development: database: db/development.sqlite3 <<: *base test: database: db/test.sqlite3 <<: *base private: database: db/private.sqlite3 <<: *base production: database: db/production.sqlite3 <<: *base I've tried setting absolute paths in it but that did not help.

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• ASP.Net MVC 2 DropDownListFor in EditorTemplate

  - by tschreck

  I have a view model that looks like this: namespace AutoForm.Models { public class ProductViewModel { [UIHint("DropDownList")] public String Category { get; set; } [ScaffoldColumn(false)] public IEnumerable<SelectListItem> CategoryList { get; set; } ... } } It has Category and CategoryList properties. The CategoryList is the source data for the Category dropdown UI element. I have an EditorTemplate that looks like this: <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<ProductViewModel>" %> <%@ Import Namespace="AutoForm.Models"%> <%=Html.DropDownListFor(m => m.Category , Model.CategoryList ) %> NOTE: this EditorTemplate is strongly typed to ProductViewModel My Controller is populating CategoryList property with data from a database. I cannot get the DropDownListFor template to render a drop down list with data from CategoryList. I know CategoryList is getting populated with data in the controller because I see the data when I debug and step through the controller. Here's my error message in the browser: Server Error in '/' Application. Object reference not set to an instance of an object. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.NullReferenceException: Object reference not set to an instance of an object. Source Error: Line 2: <%@ Import Namespace="AutoForm.Models"% Line 3: Line 4: <%=Html.DropDownListFor(m = m.Category, Model.CategoryList) % Source File: c:\ProjectStore\AutoForm\AutoForm\Views\Shared\EditorTemplates\DropDownList.ascx Line: 4 Any ideas? Thanks Tom As a followup, I noticed that ViewData.Model is null when I'm stepping through the code in the EditorTemplate. I have the EditorTemplate strongly typed to "ProductViewModel" which is also the type that's passed to the View in the controller. I'm perplexed as to why ViewData.Model is null even though it's getting populated in the controller before getting passed to the view.

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• Problem with video playback on iPad with MPMoviePlayerViewController

  - by Symo

  Hello everybody... I have been fighting some code for about a week, and am hoping that someone else may have experienced this problem and can point me in the right direction. I am using the MPMoviePlayerViewController to play a video on the iPad. The primary problem is that it works FLAWLESSLY on the iPad Simulator, but will not play at all on the iPad. I have tried re-encoding the video to make sure that isn't an issue. The video I'm using is currently a 480x360 video encoded with H.264 Basline 3.0 with AAC/LC audio. The video plays fine on the iPhone, and also does play through Safari on the iPad. The video actually loads, and you can scrub through the video with the scrubber bar and see that it is there. The frames actually display, but just will not play. If you click play, it just immediately stops. Even when I have mp.moviePlayer.shouldAutoplay=YES set, you can see the player attempt to play, but only for a split second (maybe 1 frame?). I have tried just adding view with the following code: in .h ------ MPMoviePlayerViewController *vidViewController; @property (readwrite, retain) MPMoviePlayerViewController *vidViewController; in .m ------ MPMoviePlayerViewController *mp=[[MPMoviePlayerViewController alloc] initWithContentURL:[NSURL URLWithString:videoURL]]; [mp shouldAutorotateToInterfaceOrientation:YES]; mp.moviePlayer.scalingMode=MPMovieScalingModeAspectFit; mp.moviePlayer.shouldAutoplay=YES; mp.moviePlayer.controlStyle=MPMovieControlStyleFullscreen; [videoURL release]; self.vidViewController = mp; [mp release]; [self.view addSubview:vidViewController.view]; float w = self.view.frame.size.width; float h = w * 0.75; self.vidViewController.view.frame = CGRectMake(0, 0, w, h); I have also just tried to do a: [self presentMoviePlayerViewControllerAnimated:self.vidViewController]; which I actually can not get to orient properly...always shows up in Portrait and almost completely off the screen on the bottom, and the app is only intended to run in either of the Landscape views... If anybody needs more info, just let me know. I'm about at my wits end on this. ANY help will be GREATLY appreciated.

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• Dynamic DataGrid columns in WPF DataGrid based on the underlying set of data (and their type)

  - by StatsMan

  Hello everyone, I've got kind of a conceptual question. I am in the process of wrapping some statistics classes I wrote into WPF. For that I have two DataGrid(-Views, currently in WinForms). In one DataGrid each row represents a column in the other. There I can set-up different variables (as in mathematical/statistical variables) with fields like "Header", "DataType", "ValidationBehaviour", "DisplayType". There I can also set-up how it should be displayed. Some Columns can automatically be set to ComboBoxColumns, some TextBoxColumns, and so on and so forth. So, now once I've set-up these Columns I can go to the other grid and enter my data. I may, for instance, have generated (in grid 1) one Column called "Annual Gross Salary" with input of numerical values. Another Column called "Education" with "0=NoEducation", "1=College Level", "3=Universitary" etc. These labels are displayed as text in the combobox and my statistics engine behind then selects the respective value (0-3) for calculations (i.e. ordinal, nominal variables). Sooo. In WinForms I could basically generate all the columns by hand in code and then add my data in the respective cells/rows. Now in WPF I thought that must be easy to realise. However, yesterday I got started with ICustomPropertyDescriptor which (maybe I was too thick) didn't give me the results I was looking for. Basically, I just need to be able to dynamically generate columns (and rows) with different Layout, Controls (ComboBox, simple Input, DateTimes) based on the data that I have. But I don't really know how to go about it? So here in summary: DataGrid 1 Purpose is to display columns that have been specified in DataGrid 2 In rows, the user can add any kind of data in the rows below the columns that is allowed as to the columns specifications DataGrid 2 Each row in this grid represents a column in DataGrid 1 Contains fields like Name/Header, DataType, Validation Behaviour, Default Value, Data Formatting, etc. Also contains a function to be able to set-up how it should be displayed. The user can select from, for instance, ComboBoxColumn (and also add the available options), DateTime, normal TextBox, CheckBox etc. After finishing adding a row it will automatically appear as a new column in DataGrid 1 I'd appreciate any kind of pointer into the right direction. Thanks very, very much in advance! :)

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• iPhone UIButton addTarget:action:forControlEvents: not working

  - by Aaron Vegh

  I see there are similar problems posted here, but none of the solutions work for me. Here goes: I have a UIButton instance inside a UIView frame, which is positioned within another UIView frame, which is positioned in the main window UIView. To wit: UIWindow --> UIView (searchView) --> UISearchBar (findField) --> UIView (prevButtonView) --> UIButton (prevButton) --> UIView (nextButtonView) --> UIButton (nextButton) So far, so good: everything is laid out as I want it. However, the buttons aren't accepting user input of any kind. I am using the UIButton method addTarget:action:forControlEvents: and to give you an idea of what I'm doing, here's my code for nextButton: nextButton = [UIButton buttonWithType:UIButtonTypeCustom]; [nextButton setImage:[UIImage imageNamed:@"find_next_on.png"] forState:UIControlStateNormal]; [nextButton setImage:[UIImage imageNamed:@"find_next_off.png"] forState:UIControlStateDisabled]; [nextButton setImage:[UIImage imageNamed:@"find_next_off.png"] forState:UIControlStateHighlighted]; [nextButton addTarget:self action:@selector(nextResult:) forControlEvents:UIControlEventTouchUpInside]; The method nextResult: never gets called, the state of the button doesn't change on touching, and there's not a damned thing I've been able to do to get it working. I assume that there's an issue with all these layers of views: maybe something is sitting on top of my button, but I'm not sure what it could be. In the interest of information overload, I found a bit of code that would print out all my view info. This is what I get for my entire view hierarchy: UIWindow {{0, 0}, {320, 480}} UILayoutContainerView {{0, 0}, {320, 480}} UINavigationTransitionView {{0, 0}, {320, 480}} UIViewControllerWrapperView {{0, 64}, {320, 416}} UIView {{0, 0}, {320, 416}} UIWebView {{0, 44}, {320, 416}} UIScroller {{0, 0}, {320, 416}} UIImageView {{0, 0}, {54, 54}} UIImageView {{0, 0}, {54, 54}} UIImageView {{0, 0}, {54, 54}} UIImageView {{0, 0}, {54, 54}} UIImageView {{-14.5, 14.5}, {30, 1}} UIImageView {{-14.5, 14.5}, {30, 1}} UIImageView {{0, 0}, {1, 30}} UIImageView {{0, 0}, {1, 30}} UIImageView {{0, 430}, {320, 30}} UIImageView {{0, 0}, {320, 30}} UIWebDocumentView {{0, 0}, {320, 21291}} UIView {{0, 0}, {320, 44}} UISearchBar {{10, 8}, {240, 30}} UISearchBarBackground {{0, 0}, {240, 30}} UISearchBarTextField {{5, -2}, {230, 31}} UITextFieldBorderView {{0, 0}, {230, 31}} UIPushButton {{205, 6}, {19, 19}} UIImageView {{10, 8}, {15, 15}} UILabel {{30, 7}, {163, 18}} UIView {{290, 15}, {23, 23}} UIButton {{0, 0}, {0, 0}} UIImageView {{-12, -12}, {23, 23}} UIView {{260, 15}, {23, 23}} UIButton {{0, 0}, {0, 0}} UIImageView {{-12, -12}, {23, 23}} UINavigationBar {{0, 20}, {320, 44}} UINavigationButton {{267, 7}, {48, 30}} UIImageView {{0, 0}, {48, 30}} UIButtonLabel {{11, 7}, {26, 15}} UINavigationItemView {{79, 8}, {180, 27}} UINavigationItemButtonView {{5, 7}, {66, 30}} MBProgressHUD {{0, 0}, {320, 480}} UIActivityIndicatorView {{141, 206}, {37, 37}} UILabel {{117, 247}, {86, 27}} The relevant part is noted above the UINavigationBar section. Anyone have any suggestions? I'm all out. Thanks for reading. Aaron.

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• Bug with asp.net mvc2, collection and ValidationMessageFor ?

  - by Rafael Mueller

  I'm with a really weird bug with asp.net mvc2 (rtm) and ValidationMessageFor. The example below throws a System.Collections.Generic.KeyNotFoundException on Response.Write(Html.ValidationMessageFor(n = n[index].Name)); Any ideas why thats happening? I'm accessing the same dictionary twice before, but it only throws the error on ValidationMessageFor, any thoughts? Here's the code. public class Parent { public IList<Child> Childrens { get; set; } [Required] public string Name { get; set; } } public class Child { [Required] public string Name { get; set; } } The controller public class ParentController : Controller { public ActionResult Create() { var parent = new Parent { Name = "Parent" }; parent.Childrens = new List<Child> { new Child(), new Child(), new Child() }; return View(parent); } } The view (Create.aspx) <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<Parent>" %> <%@ Import Namespace="BugAspNetMVC" %> <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <%Html.EnableClientValidation(); %> <% using (Html.BeginForm()) {%> <%=Html.LabelFor(p => p.Name)%> <%=Html.TextBoxFor(p => p.Name)%> <%=Html.ValidationMessageFor(p => p.Name)%> <%Html.RenderPartial("Childrens", Model.Childrens); %> <%} %> </asp:Content> And the partial view (Childrens.ascx) <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<IList<Child>>" %> <%@ Import Namespace="BugAspNetMVC"%> <% for (int i = 0; i < Model.Count; i++) { var index = i; Response.Write(Html.LabelFor(n => n[index].Name)); Response.Write(Html.TextBoxFor(n => n[index].Name)); Response.Write(Html.ValidationMessageFor(n => n[index].Name)); } %>

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• MVC 2 View Layout CSS Control Layout

  - by Cory Mathewson

  I'm new to a lot of what I'm trying to do with the development of a new MVC2 web application so this is a beginner question. I need to understand my options for control and content layout on a web page. I’m using MVC2 so I’m using Controllers, Views, ViewModels, and View Templates. What I need to spin up on…fast…is control the granular layout of controls and content on any particular view. Below I’ve pasted two examples of auto generated templates that illustrate my challenge. I see that layout is controlled by CSS in my Site.css document. In the first example I get a sequential flow of DisplayLabel and DisplayField. I prefer the adjacent layout of DisplayLabel on the same line as DisplayField produced from example 2. However, example 2 is too simple because the formatting is applied to the Label and the Field. I think the correct way to tackle this learning curve is Microsoft Expression but I don’t have personal bandwidth at the moment to tackle Expression. Can anyone point me to a resource that will expose me to lots of examples for CSS formatting? I have lots of syntax questions. For instance, I believe is referencing the Site.css but I can’t find a "display-label" section in Site.css. Example 1 <fieldset> <legend>Fields</legend> <div class="display-label">DocTitle</div> <div class="display-field"><%: Model.DocTitle %></div> <div class="display-label">DocoumentPropertiesID</div> <div class="display-field"><%: Model.DocumentPropertiesID %></div> Example 2 <h2>Title: <%: Model.DocTitle %></h2> <h2>Created: <%: Model.Created %></h2> <h2>Modified: <%: Model.Modified %></h2> <h2>Author: <%: Model.tbl_Author.Name %></h2> <h2>Genre: <%: Model.tbl_DocumentGenre.GenreName %></h2>

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• *UPDATED* help with django and accented characters?

  - by Asinox

  Hi guys, i have a problem with my accented characters, Django admin save my data without encoding to something like "&aacute;" Example: if im trying a word like " Canción ", i would like to save in this way: Canci&oacute;n, and not Canción. im usign Sociable app: {% load sociable_tags %} {% get_sociable Facebook TwitThis Google MySpace del.icio.us YahooBuzz Live as sociable_links with url=object.get_absolute_url title=object.titulo %} {% for link in sociable_links %} <a href="{{ link.link }}"><img alt="{{ link.site }}" title="{{ link.site }}" src="{{ link.image }}" /></a> {% endfor %} But im getting error if my object.titulo (title of the article) have a accented word. aught KeyError while rendering: u'\xfa' Any idea ? i had in my SETTING: DEFAULT_CHARSET = 'utf-8' i had in my mysql database: utf8_general_ci COMPLETED ERROR: Traceback: File "C:\wamp\bin\Python26\lib\site-packages\django\core\handlers\base.py" in get_response 100. response = callback(request, *callback_args, **callback_kwargs) File "C:\wamp\bin\Python26\lib\site-packages\django\views\generic\date_based.py" in object_detail 366. response = HttpResponse(t.render(c), mimetype=mimetype) File "C:\wamp\bin\Python26\lib\site-packages\django\template\__init__.py" in render 173. return self._render(context) File "C:\wamp\bin\Python26\lib\site-packages\django\template\__init__.py" in _render 167. return self.nodelist.render(context) File "C:\wamp\bin\Python26\lib\site-packages\django\template\__init__.py" in render 796. bits.append(self.render_node(node, context)) File "C:\wamp\bin\Python26\lib\site-packages\django\template\debug.py" in render_node 72. result = node.render(context) File "C:\wamp\bin\Python26\lib\site-packages\django\template\loader_tags.py" in render 125. return compiled_parent._render(context) File "C:\wamp\bin\Python26\lib\site-packages\django\template\__init__.py" in _render 167. return self.nodelist.render(context) File "C:\wamp\bin\Python26\lib\site-packages\django\template\__init__.py" in render 796. bits.append(self.render_node(node, context)) File "C:\wamp\bin\Python26\lib\site-packages\django\template\debug.py" in render_node 72. result = node.render(context) File "C:\wamp\bin\Python26\lib\site-packages\django\template\loader_tags.py" in render 62. result = block.nodelist.render(context) File "C:\wamp\bin\Python26\lib\site-packages\django\template\__init__.py" in render 796. bits.append(self.render_node(node, context)) File "C:\wamp\bin\Python26\lib\site-packages\django\template\debug.py" in render_node 72. result = node.render(context) File "C:\wamp\bin\Python26\lib\site-packages\sociable\templatetags\sociable_tags.py" in render 37. 'link': sociable.genlink(site, **self.values), File "C:\wamp\bin\Python26\lib\site-packages\sociable\sociable.py" in genlink 20. values['title'] = quote_plus(kwargs['title']) File "C:\wamp\bin\Python26\lib\urllib.py" in quote_plus 1228. s = quote(s, safe + ' ') File "C:\wamp\bin\Python26\lib\urllib.py" in quote 1222. res = map(safe_map.__getitem__, s) Exception Type: TemplateSyntaxError at /noticia/2010/jun/10/matan-domingo-paquete-en-la-avenida-san-vicente-de-paul/ Exception Value: Caught KeyError while rendering: u'\xfa' thanks, sorry with my English

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• asp.net mvc2 - controller for master page and code organization

  - by ile

  I've just finished my first ASP.NET MVC (2) CMS. Next step is to build website that will show data from CMS's database. This is website design: #1 (Red box) - displays article categories. ViewModel: public class CategoriesDisplay { public CategoriesDisplay() { } public int CategoryID { set; get; } public string CategoryTitle { set; get; } } #2 (Brown box) - displays last x articles; skips those from green box #3. Viewmodel: public class ArticleDisplay { public ArticleDisplay() { } public int CategoryID { set; get; } public string CategoryTitle { set; get; } public int ArticleID { set; get; } public string ArticleTitle { set; get; } public string URLArticleTitle { set; get; } public DateTime ArticleDate; public string ArticleContent { set; get; } } #3 (green box) - Displays last x articles. Uses the same ViewModel as brown box #2 #4 (blue box) - Displays list of upcoming events. Uses dataContext.Model.Event as ViewModel Boxes #1, #2 and #4 will repeat all over the site and they are part of Master Page. So, my question is: what is the best way to transfer this data from Model to Controller and finally to View pages? Should I make a controller for master page and ViewModel class that will wrap all this classes together OR Should I create partial Views for every of these boxes and make each of them inherit appropriate class (if it is even possible that it works this way?) OR Should I put this repeated code in all controllers and all additional data transfer via ViewData, which would be probably the worse way :) OR There is maybe a better and more simple way but I don't know/see it? Thanks in advance, Ile EDIT: If your answer is #1, then please explain how to make a controller for master page! EDIT 2: In this tutorial is described how to pass data to master page using abstract class: http://www.asp.net/LEARN/mvc/tutorial-13-cs.aspx In "Listing 5 – Controllers\MoviesController.cs", data is retrieved directly from database using LINQ, not from repository. So, I wonder if this is just in this tutorial, or there is some trick here and repository can't/shouldn't be used?

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• ASP.NET MVC 2 JQuery POST not displaying the model state errors

  - by Oshan

  Hello, I have been using asp.net mvc for a bit (but I'm still a beginer). I want to have the ability to update two views as a result of a jquery postback. Basically I have a list and a details view. The details view is presented using a jquery popup (using jquery-UI popup). I only want to update the list if the details save is successful (i.e. there are no validation errors on the details view). However, if there are any validation errros in the details view, I want to update the details view so that the user sees the validation errors. so I thought in my controller, I return a JsonResult instead of a View. [HttpPost] public ActionResult SavePersonInfo(Person p) { if(ModelState.Valid) { return View("PersonList"); } return Json({Error = true, View = PartialView("PersonDetails", p)}); } As you can see if there are no errors I return the person list view, but if there are any validation errors, I have return the details view. The reason that I'm returning a JsonResult is I need to tell my view there is an error so that the view (jquery) knows which section to update (as in whether to update the person list 'div' or the popup dialog 'div'). So, in my view, the jquery is as follows (please assume that there is a form for entering in the person details and "SubmitPersonForm();" function is called upon clicking on the "Save" button): <script type="text/javascript> $('#btnSave').click(function (event) { onBegin(); $.ajax( { type: "POST", url: "/Person/Save", data: $('form').serialize(), success: function (result) { if(result.Error) { $('#dvDetails').html($(result).View)); } else { $('#dvPersonList').html($result); } } }); }); </script> So the problem that I have now, is that when there is a validation error, I do see the correct, 'div' being updated, but I lose the asp.net mvc validation messages. I do not see any validation errors in red, as if ASP.NET MVC is completely ignored them. However, my ModelState does have those errros, just not displayed in the details view. I do have valication summary and Html.ValidationFor(m = ...) statements put in my details view. Could someone tell me why I'm not seeing the validation errors? although I'm using a JSonResult, I do use the right property which is a valid view when I render the 'dvDetails'. Am I doing something that I'm not suppose to in asp.net mvc? Btw I'm using asp.net mvc2 RC with Visual Studio 2010 RC. Thank you.

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• java.lang.NoClassDefFoundError: org/springframework/transaction/interceptor/TransactionInterceptor

  - by user1137146

  I am trying to integrate spring 3.1.1 with hibernate 4.0. This is my dispatcher-servlet.xml: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:jee="http://www.springframework.org/schema/jee" xmlns:lang="http://www.springframework.org/schema/lang" xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <context:component-scan base-package="com.future.controllers" /> <context:annotation-config /> <context:component-scan base-package="com.future.services.menu" /> <context:component-scan base-package="com.future.dao" /> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close" p:driverClassName="com.mysql.jdbc.Driver" p:url="jdbc:mysql://localhost:3306/bar_visitor2" p:username="root" p:password=""/> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> <property name="prefix" value="/WEB-INF/views/" /> <property name="suffix" value=".jsp" /> </bean> <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="configLocation"> <value>classpath:hibernate.cfg.xml</value> </property> </bean> <tx:annotation-driven /> <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"> <property name="sessionFactory" ref="sessionFactory" /> </bean> When I try to use @Transactional annotation I am getting an error java.lang.NoClassDefFoundError: org/springframework/transaction/interceptor/TransactionInterceptor. I checked my classpath and there is TransactionInterceptor.class. What am I doing wrong? Should I add something? Edit This is my lib folder:

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