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• Reminder: Premier Support for EBS 11i ends November 2010

  - by Steven Chan

  Apps sysadmins are going to have a busy year.  If you're still running your E-Business Suite environment on the 10gR2 database, I hope that you're aware that Premier Support for 10.2 ends in July 2010.  But if you're still on Oracle E-Business Suite Release 11i version 11.5.10, the impending end of Premier Support this year on November 30, 2010 is even more important.  Support windows for Oracle E-Business Suite are listed here:Oracle Lifetime Support > "Lifetime Support Policy: Oracle Applications" (PDF)Premier Support runs for five years from a product's first release.  In the case of Oracle E-Business Suite Release 11.5.10, that window was increased to six years in recognition of the challenges that some of you face in justifying major upgrades in today's economy. Here's a graphical summary of the EBS 11.5.10's support stages:First year of Extended Support fees for EBS 11.5.10 waivedRegular readers may recall that fees for the first year of Extended Support for EBS 11.5.10 are waived.  There is nothing that customers need to do to remain fully supported other than keep your support contracts current.  Higher fees for Extended Support will start December 1, 2011 for most platforms.  This is formally documented here:Technical Support Policies > "Oracle's Technical Support Policies" (PDF)

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• Ubuntu Studio Audio Issue with Alsa - No sound

  - by ddragon

  Spec: OS: Ubuntu Studio 13.10 64bit CPU: AMD FX 4100 Quad Core Memory: 6GB DDR3 Video: Radeon HD 4250 (embedded on the mobo) Sound: Delta 66 PCI Issue: I just installed Ubuntu Studio and found out that the streaming audio on a few common website such as Youtube had no sound, and also my CD/DVDs via a player. Thus, in the terminal, I entered: sudo alsa force-reload It actually worked but the sound/audio output was MONO and NOT Stereo (the sources are set to stereo stereo), and it seemed I was not able to locate any settings that can switch the output sound to stereo at all. I went through many forums and eventually "autoremove" pulseaudio since many said I would not be able to utilize both pulseaudio and alsa in this case. Now, I have no audio whatsoever. Does this version of Ubuntu only offer mono sound/audio no matter what I do? Then, I may just need to ditch the whole thing and go back to Windows, which I don't want to since Ubuntu Studio offers many great apps, soundfonts etc.. I have also installed restricted extra, but even after rebooting, it did not resolve the issue. In the terminal mode, I pulled "alsamixer" and unmuted almost everything. But still no sound after a reboot. Just an FYI, I have no saved data under this version of Ubuntu Studio yet, so please feel free to let me know whether I need to install Studio 12.10 instead or mess with some installing/uninstalling apps/plug-ins, etc... If it breaks at some point, all I need to do is to re-install it, which I do not mind at all. Or, if you can provide me a step by step instruction to get this work, I do not mind clean install the Studio 13.10 then wait for your instruction AT ALL!

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• "Give with Bing" - Help raise money for Sports relief while searching for whatever you want

  - by Testas

  While Sport Relief drives fundraising by challenging people to do physical activities such as running a mile, we’re introducing the ‘Bing Search Mile,’ which gives people the ability to search using Bing and raise money for charity. For every 10 searches made, Bing.com will donate 5p to Sport Relief 2010, enabling you, and your friends and family, to raise money just by searching with Bing until the end of March. With the average mile taking about 10 minutes to run, in the same time, you can make up to 150 searches online - that’s 75p raised for a good cause per ‘search mile’. And while you’re at it,  why not step it up a gear and aim to complete a ‘Search Mile’ each day or even a ‘Search Marathon’ over the 5 week campaign with your colleagues, friends and family? How to get involved: 1.      Visit GiveWithBing.com and download the Official Sport Relief Bing Counter. Once downloaded, the Sport Relief counter will count all the searches you do on Bing from that point on.  2.      Now that you’re registered (and signed in), invite your friends, family, colleagues or classmates to join in the fundraising with you – GiveWithBing.com automatically generates an email explaining how it works for you to send them – the more people who search with you, the more money you raise. People can also register a school 3.      Run your ‘search mile’ every day and watch how your searches turn into life-changing cash for charity, with every 10 searches equalling 5p for Sport Relief. You can check your progress by visiting your individual page (more info here).  This is such a positive initiative and I challenge everyone in the UK to invite their key contacts to be part of Give with Bing.   Chris

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• What, if anything, to do about bow-shaped burndowns?

  - by Karl Bielefeldt

  I've started to notice a recurring pattern to our team's burndown charts, which I call a "bowstring" pattern. The ideal line is the "string" and the actual line starts out relatively flat, then curves down to meet the target like a bow. My theory on why they look like this is that toward the beginning of the story, we are doing a lot of debugging or exploratory work that is difficult to estimate remaining work for. Sometimes it even goes up a little as we discover a task is more difficult once we get into it. Then we get into implementation and test which is more predictable, hence the curving down graph. Note I'm not talking about a big scale like BDUF, just the natural short-term constraint that you have to find the bug before you can fix it, coupled with the fact that stories are most likely to start toward the beginning of a two-week iteration. Is this a common occurrence among scrum teams? Do people see it as a problem? If so, what is the root cause and some techniques to deal with it?

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• Going to Tech*Ed 2010

  - by Nikita Polyakov

  After years of one night community and volunteering tasks; and even running cool events like ]inbetween[ weekend, I finally get to go to the actual event! And this time it’s not in Orlando – it’s in New Orleans - which is also exciting! I will be attending many Windows Phone 7 sessions. And will hover over the Windows Phone booths. I am also extremely excited about this short exchange I had on twitter with the brand new Windows Phone Partner Community account: @wppartner #WindwosPhone 7 Enterprise story is what we are all waiting to hear :) #wp7dev 7:51 PM Jun 1st via TweetDeck in reply to wppartner @NikitaP We'll definitely be covering that at @WPCDC but we'll also be talking about it at @TechEd_NA next week! about 4 hours ago via CoTweet in reply to NikitaP As you might know I also love Microsoft Expression Blend and SketchFlow. I will be hanging out at the Microsoft Expression TLC [Technical Learning Center] booths in Expo Hall during these times: Day Start Finish 7-Jun 10:30 AM 12:30 PM 7-Jun 7:30 PM 9:00 PM 8-Jun 2:45 PM 5:00 PM 9-Jun 2:45 PM 5:00 PM 10-Jun 12:15 PM 3:00 PM   Feel free to find me and chat me up. I’ll be twittering under @NikitaP, if you are in Florida dev community use #teched_fl hash tag. If you are going and you have a Windows Phone 6.5, iPhone/ipad, Android or a Vista/Win7 laptop with you, grab this: Kevin Wolf’s TechEd 2010 Schedule and Twitter Tool – One App, 5 Different Platforms in one word: Aaaaaaamazing!

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• what is a normal developer to pageview ratio?

  - by Anthony Shull

  I work for an e-commerce site that has lately been shedding its workforce. I was hired ten months ago as a UI Developer. At that time we had three other developers. One was the technical lead who had been with the company for 10 years. The other two were server-side developers who had been there for 10 and 3.5 years respectively. In ten months, the technical lead left for a better position, one developer was laid off, and the other very recently left. So, I am now the only developer on staff. We have one DBA and one network administrator. They are currently looking to hire another developer but are not willing to pay enough to hire a senior person. I consider myself a junior developer with two years of experience. I have argued that we need to hire at least one senior developer and another junior developer if we're going to keep our current site operational (not to mention develop new features)...even if that means laying off staff in other departments. Right now we get 6.5 million pageviews per month, and I feel like 3.2 million pageviews per developer must be incredibly abnormal. My question is then: what is a normal developer to pageview ratio? Are there any industry standards or literature on the subject that I can use to argue for more staff?

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• Java - Resize images upon class instantiation

  - by Tyler J Fisher

  Hey StackExchange GameDev community, I'm attempting to: Resize series of sprites upon instantiation of the class they're located in (x2) I've attempted to use the following code to resize the images, however my attempts have been unsuccessful. I have been unable to write an implementation that is even compilable, so no error codes yet. wLeft.getScaledInstance(wLeft.getWidth()*2, wLeft.getHeight()*2, Image.SCALE_FAST); I've heard that Graphics2D is the best option. Any suggestions? I think I'm probably best off loading the images into a Java project, resizing the images then outputting them to a new directory so as not to have to resize each sprite upon class instantiation. What do you think? Photoshopping each individual sprite is out of the question, unless I used a macro. Code: package game; //Import import java.awt.Image; import javax.swing.ImageIcon; public class Mario extends Human { Image wLeft = new ImageIcon("sprites\\mario\\wLeft.PNG").getImage(); //Constructor public Mario(){ super("Mario", 50); wLeft.getScaledInstance(wLeft.getWidth()*2, wLeft.getHeight()*2, Image.SCALE_FAST); } Thanks! Note: not homework, just thought Mario would be a good, overused starting point in game dev.

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• Unleash AutoVue on Your Unmanaged Data

  - by [email protected]

  Over the years, I've spoken to hundreds of customers who use AutoVue to collaborate on their "managed" data stored in content management systems, product lifecycle management systems, etc. via our many integrations. Through these conversations I've also learned a harsh reality - we will never fully move away from unmanaged data (desktops, file servers, emails, etc). If you use AutoVue today you already know that even if your primary use is viewing content stored in a content management system, you can still open files stored locally on your computer. But did you know that AutoVue actually has - built-in - a great solution for viewing, printing and redlining your data stored on file servers? Using the 'Server protocol' you can point AutoVue directly to a top-level location on any networked file server and provide your users with a link or shortcut to access an interface similar to the sample page shown below. Many customers link to pages just like this one from their internal company intranets. Through this webpage, users can easily search and browse through file server data with a 'click-and-view' interface to find the specific image, document, drawing or model they're looking for. Any markups created on a document will be accessible to everyone else viewing that document and of course real-time collaboration is supported as well. Customers on maintenance can consult the AutoVue Admin guide or My Oracle Support Doc ID 753018.1 for an introduction to the server protocol. Contact your local AutoVue Solutions Consultant for help setting up the sample shown above.

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• Farewell

  - by brian.harrison

  Dear Friends and Colleagues After 8.5 years with Plumtree/BEA/Oracle, it is time for me to move on to something new and exciting. Tomorrow, May 21, will be my last day with Oracle. Prior to joining Plumtree back in 2001, I had not stayed with any one company for more than two years at a time and I really thought that that might be the case with Plumtree even then. However, 8.5 years later, I can definitely say that it has been a great ride with very few regrets. I have made some fantastic friends and have learned something from each and every one of you. I have definitely considered this to be a rewarding experience and I will miss all of you. I do hope that you will keep in contact. You never know, our paths may cross again in the future. If you would like to keep in contact, then you can find me on Facebook or Linked In and my personal email is: [email protected]. Goodbye and Good Luck. Brian C. Harrison

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• Do Repeat Yourself in Unit Tests

  - by João Angelo

  Don’t get me wrong I’m a big supporter of the DRY (Don’t Repeat Yourself) Principle except however when it comes to unit tests. Why? Well, in my opinion a unit test should be a self-contained group of actions with the intent to test a very specific piece of code and should not depend on externals shared with other unit tests. In a typical unit test we can divide its code in two major groups: Preparation of preconditions for the code under test; Invocation of the code under test. It’s in the first group that you are tempted to refactor common code in several unit tests into helper methods that can then be called in each one of them. Another way to not duplicate code is to use the built-in infrastructure of some unit test frameworks such as SetUp/TearDown methods that automatically run before and after each unit test. I must admit that in the past I was guilty of both charges but what at first seemed a good idea since I was removing code duplication turnout to offer no added value and even complicate the process when a given test fails. We love unit tests because of their rapid feedback when something goes wrong. However, this feedback requires most of the times reading the code for the failed test. Given this, what do you prefer? To read a single method or wander through several methods like SetUp/TearDown and private common methods. I say it again, do repeat yourself in unit tests. It may feel wrong at first but I bet you won’t regret it later.

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• How to Upload Really Large Files to SkyDrive, Dropbox, or Email

  - by Matthew Guay

  Do you need to upload a very large file to store online or email to a friend? Unfortunately, whether you’re emailing a file or using online storage sites like SkyDrive, there’s a limit on the size of files you can use. Here’s how to get around the limits. Skydrive only lets you add files up to 50 MB, and while the Dropbox desktop client lets you add really large files, the web interface has a 300 MB limit, so if you were on another PC and wanted to add giant files to your Dropbox, you’d need to split them. This same technique also works for any file sharing service—even if you were sending files through email. There’s two ways that you can get around the limits—first, by just compressing the files if you’re close to the limit, but the second and more interesting way is to split up the files into smaller chunks. Keep reading for how to do both. Latest Features How-To Geek ETC The How-To Geek Guide to Learning Photoshop, Part 8: Filters Get the Complete Android Guide eBook for Only 99 Cents [Update: Expired] Improve Digital Photography by Calibrating Your Monitor The How-To Geek Guide to Learning Photoshop, Part 7: Design and Typography How to Choose What to Back Up on Your Linux Home Server How To Harmonize Your Dual-Boot Setup for Windows and Ubuntu Hang in There Scrat! – Ice Age Wallpaper How Do You Know When You’ve Passed Geek and Headed to Nerd? On The Tip – A Lamborghini Theme for Chrome and Iron What if Wile E. Coyote and the Road Runner were Human? [Video] Peaceful Winter Cabin Wallpaper Store Tabs for Later Viewing in Opera with Tab Vault

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• How to reference jQuery in SharePoint2010

  - by ybbest

  In normal asp.net development, in order to add jQuery to your solution you need to add the following script to your Master page. <script language=”javascript” type=”text/javascript” src=”Scripts/jquery-1.4.1.min.js”></script> There are not many differences in referencing jQuery in SharePoint2010; in fact you got quite a few ways to achieve this. The first thing you need to do is to deploy jQuery using SharePoint module template in Visual studio. Then you can choose one of the following ways of referencing jQuery. 1. Using a Delegate Control 2. in the master Page 3. Ad hoc (e.g. in a site page or web part) 4. Using a Custom Action (Can be used as Sandbox solution, you can find example here.) References: jquery How to bootstrap JQuery on every SharePoint page, even in the Sandbox Referencing Javascript Files with SharePoint 2010 Custom Actions using SciptSrc

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• Would You Pay for Smartphone OS Updates? [Poll]

  - by Jason Fitzpatrick

  For most phone ecosystems, manufacturer/carrier provided updates are few and far between (or outright nonexistent). To get access to mobile OS updates, would you open your wallet? While iPhone users are used to regular (and free) OS updates, the rest of us our largely left out in the cold. Over at ExtremeTech, Ryan Whitwam argues that we should be willing to pay for smartphone OS updates. The core of his argument is updates cost money and there is no financial incentive for carriers like Sprint and Verizon to turn back to their supplies (say, Motorola or LG) and pay them to provide an update pack for a phone they stopped selling last quarter. He writes: It might be hard to swallow, but the manufacturer of your phone is out to make money for its shareholders. The truth of the matter is that you’re not even the customer; the carrier is. Carriers buy thousands of phones at a time, and unless the carrier wants an update, there won’t be one because there is no one else to pay for it. Imagine if, instead of burning money for little or no benefit, an OEM actually had a financial incentive to port ICS to its older devices. Instantly, the idea of updating phones goes from the customer service back-burner to the forefront of a company’s moneymaking strategy. If the system proves a success, carriers could get involved and have a taste of the update fees as compensation for deploying the update over the air. This is more viable now than ever before thanks to the huge number of Android phones in the market. Samsung, for example, has sold over 30 million Galaxy S II phones since last summer. It has just started rolling Android 4.0 updates out to some countries, but most users are still waiting. If it charged just $10 for access to the update, that would be $150 million if only half of all users wanted an official update. Reader Request: How To Repair Blurry Photos HTG Explains: What Can You Find in an Email Header? The How-To Geek Guide to Getting Started with TrueCrypt

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• Mission critical embedded language

  - by Moe

  Maybe the question sounds a bit strange, so i'll explain a the background a little bit. Currently i'm working on a project at y university, which will be a complete on-board software for an satellite. The system is programmed in c++ on top of a real-time operating system. However, some subsystems like the attitude control system and the fault detection and a space simulation are currently only implemented in Matlab/Simulink, to prototype the algorithms efficiently. After their verification, they will be translated into c++. The complete on-board software grew very complex, and only a handful people know the whole system. Furthermore, many of the students haven't program in c++ yet and the manual memory management of c++ makes it even more difficult to write mission critical software. Of course the main system has to be implemented in c++, but i asked myself if it's maybe possible to use an embedded language to implement the subsystem which are currently written in Matlab. This embedded language should feature: static/strong typing and compiler checks to minimize runtime errors small memory usage, and relative fast runtime attitude control algorithms are mainly numerical computations, so a good numeric support would be nice maybe some sort of functional programming feature, matlab/simulink encourage you to use it too I googled a bit, but only found Lua. It looks nice, but i would not use it in mission critical software. Have you ever encountered a situation like this, or do you know any language, which could satisfies the conditions? EDIT: To clarify some things: embedded means it should be able to embed the language into the existing c++ environment. So no compiled languages like Ada or Haskell ;)

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• Should interfaces extend (and in doing so inherit methods of) other interfaces

  - by dreza

  Although this is a general question it is also specific to a problem I am currently experiencing. I currently have an interface specified in my solution called public interface IContextProvider { IDataContext { get; set; } IAreaContext { get; set; } } This interface is often used throughout the program and hence I have easy access to the objects I need. However at a fairly low level of a part of my program I need access to another class that will use IAreaContext and perform some operations off it. So I have created another factory interface to do this creation called: public interface IEventContextFactory { IEventContext CreateEventContext(int eventId); } I have a class that implements the IContextProvider and is injected using NinJect. The problem I have is that the area where I need to use this IEventContextFactory has access to the IContextProvider only and itself uses another class which will need this new interface. I don't want to have to instantiate this implementation of IEventContextFactory at the low level and would rather work with the IEventContextFactory interface throughout. However I also don't want to have to inject another parameter through the constructors just to have it passed through to the class that needs it i.e. // example of problem public class MyClass { public MyClass(IContextProvider context, IEventContextFactory event) { _context = context; _event = event; } public void DoSomething() { // the only place _event is used in the class is to pass it through var myClass = new MyChildClass(_event); myClass.PerformCalculation(); } } So my main question is, would this be acceptable or is it even common or good practice to do something like this (interface extend another an interface): public interface IContextProvider : IEventContextFactory or should I consider better alternatives to achieving what I need. If I have not provided enough information to give suggestions let me know and I can provide more.

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• Lucene and .NET Part I

  - by javarg

  I’ve playing around with Lucene.NET and trying to get a feeling of what was required to develop and implement a full business application using it. As you would imagine, many things are required for you to implement a robust solution for indexing content and searching it afterwards. Lucene is a great and robust solution for indexing content. It offers fast and performance enhanced search engine library available in Java and .NET. You will want to use this library in many particular scenarios: In Windows Azure, to support Full Text Search (a functionality not currently supported by SQL Azure) When storing files outside or not managed by your database (like in large document storage solutions that uses File System) When Full Text Search is not really what you need Lucene is more than a Full Text Search solution. It has several analyzers that let you process and search content in different ways (decomposing sentences, deriving words, removing articles, etc.). When deciding to implement indexing using Lucene, you will need to take into account the following: How content is to be indexed by Lucene and when. Using a service that runs after a specific interval Immediately when content changes When content is to available for searching / Availability of indexed content (as in real time content search) Immediately when content changes = near real time searching After a few minutes.. Ease of maintainability and development Some Technical Concerns.. When indexing content, indexes are locked for writing operations by the Index Writer. This means that Lucene is best designed to index content using single writer approach. When searching, Index Readers take a snapshot of indexes. This has the following implications: Setting up an index reader is a costly task. Your are not supposed to create one for each query or search. A good practice is to create readers and reuse them for several searches. The latter means that even when the content gets updated, you wont be able to see the changes. You will need to recycle the reader. In the second part of this post we will review some alternatives and design considerations.

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• Flex 4 + Apache Ant, Cannot Load FlashPunk Libraries

  - by SquareCrow

  I have been searching google, Apache Docs*, and FlashPunk forums looking for an answer to this: I cannot get Ant/Flex to find and compile the FlashPunk libraries. Here is my build.xml. [code] <!-- Fetch the JAR full of Flex tasks if it is not already in the source directory --> <copy file="${FLEX_HOME}/ant/lib/flexTasks.jar" todir="${SOURCE_PATH}"/> <!-- Add flextasks to the project --> <taskdef resource="flexTasks.tasks" classpath="${SOURCE_PATH}/flexTasks.jar"></taskdef> <!-- Release build Flash Player 10.1 --> <target name="build"> <!-- Build the FlashPunk library --> <echo message="building swc..." /> <compc output="FlashPunk.swc" keep-generated-actionscript="false" incremental="false" optimize="false" debug="true" use-network="false"> <include-sources dir="${FLASHPUNK_PATH}/net" includes="**/* flashpunk/utils/* flashpunk/masks/*" excludes="**/*.TTF **/*.png"/> <load-config filename="${FLEX_HOME}/frameworks/flex-config.xml"/> </compc> <echo message="building swf..." /> <mxmlc file="${SOURCE_PATH}/epOne.as" output="${OUTPUT_PATH}/epOne.swf" debug="false" incremental="false" strict="true" accessible="false" link-report="link_report.xml" static-link-runtime-shared-libraries="true"> <optimize>true</optimize> </mxmlc> </target> [/code] Results in many errors of the type "Definition net.flashpunk.masks:Grid could not be found" even though when I open the directories I can see the *.AS files right there. Sorry if this is very basic. I am piecing together knowledge of Ant from docs and tutorials. *I decided to use Ant because neither FlashDevelop for Windows nor Eclipse for Linux seemto work for me.

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• Libraries for eclipse with CCSv5 from Texas Instruments

  - by Alex

  My system is Ubuntu 11.10 64bit and i have to run a 32bit version of eclipse to use the TI plugins for CCSv5 but it doesn't work. I tried to run eclipse in a 62bit java environment but it doesn't even start. Now I got "java version "1.6.0_30"" from Sun in 32bit and now eclipse starts but can't use the TI plug ins and I get the following errors in bash: /usr/lib/gtk-2.0/2.10.0/menuproxies/libappmenu.so: falsche ELF-Klasse: ELFCLASS64 /usr/lib/gio/modules/libgvfsdbus.so: falsche ELF-Klasse: ELFCLASS64 Failed to load module: /usr/lib/gio/modules/libgvfsdbus.so and this in a popup-window when Itry to use the plugin: The selected wizard could not be started. Plug-in com.ti.ccstudio.project.ui was unable to load class com.ti.ccstudio.project.ui.internal.wizards.importexport.temp.ExternalProjectImportWizard. An error occurred while automatically activating bundle com.ti.ccstudio.project.ui (352). T tested the libraries with file: /usr/lib/gio/modules/libgvfsdbus.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, stripped /usr/lib/gtk-2.0/2.10.0/menuproxies/libappmenu.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, stripped The ia32-libs are installed.

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• Seamless Mode Not Working Correctly in Virtual Box

  - by Jeremy

  I run Ubuntu Desktop in a VirtualBox seamless mode, hosted on Windows 7. I recently upgraded from 11.10 to 12.04 and seamless mode no longer works correctly. I have re-installed guest extensions. The problem is that the Ubuntu desktop wallpaper is shown, effectively blocking the Windows desktop. I can bring Windows apps to the foreground, but as soon as I bring any Ubuntu window to the foreground, all the windows apps will disappear, hidden by the ubuntu desktop even if I activated an Ubuntu window in a different monitor. So, it is not very much different from full-screen mode at this time. I suspect if I could turn off the Ubuntu desktop or wallpaper this would be a sufficient workaround (this is basically what Seamless mode is) but that does not seem to be possible within Ubuntu itself. [Jeremy doesn't specify system config, but I can confirm I'm seeing this behavior in Win 7 64-bit with both 32-bit and 64-bit guests. Giovanni sees the same thing on his laptop running Vista Ultimate 64 bit after upgrading his 32-bit guest to 12.04 (forums.virtualbox.org p225407, requires logging in with your free Oracle account). I was using vbox 4.1.14r77440 and matching Guest Additions. I upgraded to 4.1.16-78094 vbox+additions. Still a problem. And I filed launchpad bug 999929 to see if I can get feedback from developers. – tbc0] Any other ideas?

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• Explain Model View Controller

  - by Channel72

  My experience with developing dynamic websites is limited mostly to Java servlets. I've used Tomcat to develop various Java servlets, and I wouldn't hesitate to say that I'm reasonably proficient with this technology, as well as with client-side HTML/CSS/Javascript for the front-end. When I think "dynamic website", I think: user requests a URL with a query string, server receives the query, and then proceeds to output HTML dynamically in order to respond to the query. This often involves communication with a database in order to fetch requested data for display. This is basically the idea behind the doGet method of a Java HttpServlet. But these days, I'm hearing more and more about newer frameworks such as Django and Ruby on Rails, all of which take advantage of the "Model View Controller" architecture. I've read various articles which explain MVC, but I'm having trouble really understanding the benefits. I understand that the general idea is to separate business logic from UI logic, but I fail to see how this is anything really different from normal web programming. Web programming, by it's very nature, forces you to separate business logic (back-end server-side programming) from UI programming (client-side HTML or Javascript), because the two exist in entirely different spheres of programming. Question: What does MVC offer over something like a Java servlet, and more importantly, what exactly is MVC and how is it different from what you would normally do to develop a dynamic website using a more traditional approach such as a Java servlet (or even something older like CGI). If possible, when explaining MVC, please provide an example which illustrates how MVC is applied to the web development process, and how it is beneficial.

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• Announcing Berkeley DB Java Edition Major Release

  - by Eric Jensen

  Berkeley DB Java Edition 5.0 was just released. There are a number of new features, enhancements, and options in there that our users have been asking for. Chief among them is a new class called DiskOrderedCursor, which greatly increases performance of systems using spinning platter magnetic hard drives. A number of users expressed interest in this feature, including Alex Feinberg of LinkedIn. Berkeley DB Java Edition is part of Project Voldemort, a distributed key/value database used by LinkedIn. There have been many other improvements and optimizations. Concurrency is significantly improved, as is the performance of update and delete operations. New and interesting methods include Environment.preload, which allows multiple databases to be preloaded simultaneously. New Cursor methods enable for more effective searching through the database. We continue to enhance Berkeley DB Java Edition’s High Availability as well. One new feature is the ability to open a replicated node read-only when the master is unavailable. This can allow critical systems to continue offering some functionality, even during a network or master node failure. There’s a lot more in release 5.0. I encourage you to take a look at the extensive changelog yourself. As always, you can download the new release and try it out here: http://www.oracle.com/technetwork/database/berkeleydb/downloads/index.html

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• Coding in large chunks ... Code verification skills

  - by Andrew

  As a follow up to my prev question: What is the best aproach for coding in a slow compilation environment To recap: I am stuck with a large software system with which a TDD ideology of "test often" does not work. And to make it even worse the features like pre-compiled headers/multi-threaded compilation/incremental linking, etc is not available to me - hence I think that the best way out would be to add the extensive logging into the system and to start "coding in large chunks", which I understand as code for a two-three hours first (as opposed to 15-20 mins in TDD) - thoroughly eyeball the code for a 15 minutes and only after all that do the compilation and run the tests. As I have been doing TDD for a quite a while, my code eyeballing / code verification skills got rusty (you don't really need this that much if you can quickly verify what you've done in 5 seconds by running a test or two) - so I am after a recommendations on how to learn these source code verification/error spotting skills again. I know I was able to do that easily some 5-10 years ago when I din't have much support from the compiler/unit testing tools I had until recently, thus there should be a way to get back to the basics.

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• What is controlling the desktop display?

  - by Bart Silverstrim

  I have two Ubuntu systems and in the course of changing configurations something has become muddled. I have disabled Unity in favor of gnome shell, the older style display of the desktop. Then I installed xfce 4. Seemed everything would be working okay, and for the most part it does. Except I noticed that on one system there's something else controlling settings. On one, if I right click the desktop, I get the menu with the options: open in new window create launcher... create url link... create folder... create from template -> open terminal here paste desktop settings... properties... applications -> On system two, right clicking brings up the menu: Create new folder Create new document -> organize desktop by name keep aligned paste Change Desktop Background Additionally, even though I set the background with the xfce settings manager, on system two that background will appear for a few seconds before it's replaced by something that looks like a background from Ubuntu's original desktop. And it's being controlled by what comes up with the "change desktop background" when right clicking, which isn't the xfce settings manager. On the first system, that right click does bring up the xfce settings tool. In short, something is controlling/overriding the xfce settings on machine two, but I can't find what file or configuration tool is doing it. How can I get system two to behave as system one, giving control of settings and configuration of X to XFCE's tools?

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• Node.js MMO - process and/or map division

  - by Gipsy King

  I am in the phase of designing a mmo browser based game (certainly not massive, but all connected players are in the same universe), and I am struggling with finding a good solution to the problem of distributing players across processes. I'm using node.js with socket.io. I have read this helpful article, but I would like some advice since I am also concerned with different processes. Solution 1: Tie a process to a map location (like a map-cell), connect players to the process corresponding to their location. When a player performs an action, transmit it to all other players in this process. When a player moves away, he will eventually have to connect to another process (automatically). Pros: Easier to implement Cons: Must divide map into zones Player reconnection when moving into a different zone is probably annoying If one zone/process is always busy (has players in it), it doesn't really load-balance, unless I split the zone which may not be always viable There shouldn't be any visible borders Solution 1b: Same as 1, but connect processes of bordering cells, so that players on the other side of the border are visible and such. Maybe even let them interact. Solution 2: Spawn processes on demand, unrelated to a location. Have one special process to keep track of all connected player handles, their location, and the process they're connected to. Then when a player performs an action, the process finds all other nearby players (from the special player-process-location tracking node), and instructs their matching processes to relay the action. Pros: Easy load balancing: spawn more processes Avoids player reconnecting / borders between zones Cons: Harder to implement and test Additional steps of finding players, and relaying event/action to another process If the player-location-process tracking process fails, all other fail too I would like to hear if I'm missing something, or completely off track.

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• Announcing Release of Oracle Solaris Cluster 4.1!

  - by user9159196

  Oct 26, 2012We are very happy to announce the release of  Oracle Solaris Cluster 4.1, providing High Availability (HA) and  Disaster Recovery (DR) capabilities for Oracle Solaris 11.1.  This is yet another proof of Oracle's continued investment in Oracle Solaris technologies such as Oracle Solaris Cluster. For this new release we have improved the Solaris Cluster integration within the Oracle environment. For example  we've created new agents such as PeopleSoft JobScheduler or added the support of the Oracle ZFS Storage Appliance replication in the Geo Edition module (to facilitate disaster recovery in multi-site configuration equipped with those types of storage.) We have also extended the Oracle Solaris Zone Cluster feature with support of Oracle Solaris 10 zone clusters and exclusive-IP to facilitate deployment of virtualized or cloud architecture.And there are many more new features to discover in this release. Stay tuned for more specific articles. In the mean time check out the What's new document or even better, download the latest version from  here.Also, join the Oracle Solaris 11 Online Event on November 7 where an entire session will be devoted to discussing Oracle Solaris Cluster 4.1. Our Oracle Solaris Cluster engineers will be on hand to respond to your questions. We look forward to your feedback and inputs! -Nancy Chow and Eve Kleinknecht 

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