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• ASP.NET binding object to Request in asp.net mvc

  - by Alxandr

  I've created a object that I'd like to have accessible from wherever the request-object is accessible, and to "die" with the request, more or less like how you always in a mvc-application has access to the RouteData-collection. Especially it's important that I have access to this object in the execution of action-filters. And also there need to be created a new object of my class whenever a new request is made to the page (the object needs to be request-safe, ie. only one request modifies that one object). Any thoughts about how to achieve this?

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• Coldfusion returning typed objects / AMF remoting

  - by Chin

  Is the same possible in ColdFusion? Currently I am using .Net/Fluorine to return objects to the client. Whilst in testing I like to pass strings representing the select statement and the custom object I wish to have returned from my service. Fluorine has a class ASObject to which you can set the var 'typeName'; which works great. I am hoping that this is possible in Coldfusion. Does anyone know whether you can set the type of the returned object in a similar way. This is especially helpful with large collections as the flash player will convert them to a local object of the same name thus saving interating over the collection to convert the objects to a particular custom object. foreach (DataRow row in ds.Tables[0].Rows) { ASObject obj = new ASObject(); foreach (DataColumn col in ds.Tables[0].Columns) { obj.Add(col.ColumnName, row[col.ColumnName]); } obj.TypeName = pObjType; al.Add(obj); } Many thanks,

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• In Intellij, how can I get a List on the left hand side when I extract a variable that's an ArrayList?

  - by tieTYT

  As an example, if I extract a variable from this: return new ArrayList<CrudTestData<Foo>>(); It will turn the code into this: ArrayList<CrudTestData<Foo>> list = new ArrayList<CrudTestData<Foo>>(); return list; How can I automatically get a list on the left hand side like this? List<CrudTestData<Foo>> list = new ArrayList<CrudTestData<Foo>>(); return list; Theoretically, Intellij should know to use a List instead of a Collection because the method returns a List.

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• ruby on rails adding new route

  - by ohana

  i have an RoR application Log, which similar to the book store app, my logs_controller has all default action: index, show, update, create, delete.. now i need to add new action :toCSV, i defined it in logs_controller, and add new route in the config/routes as: map.resources :logs, :collection = { :toCSV = :get }. from irb, i checked the routes and see the new routes added already: rs = ActionController::Routing::Routes puts rs.routes GET /logs/toCSV(.:format)? {:controller="logs", :action="toCSV"} then ran ‘rake routes’ command in shell, it returned: toCSV_logs GET /logs/toCSV(.:format) {:controller="logs", :action="toCSV"} everything seems working. finally in my views code, i added the following: link_to 'Export to CSV', toCSV_logs_path when access it in the brower 'http://localhost:3000/logs/toCSV', it complained: Couldn't find Log with ID=toCSV i checked in script/server, and saw this one: ActiveRecord::RecordNotFound (Couldn't find Log with ID=toCSV): app/controllers/logs_controller.rb:290:in `show' seems when i click that link, it direct it to the action 'show' instead of 'toCSV', thus it took 'toCSV' as an id...anyone know why would this happen? and to fix it? Thanks...

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• Relation many-to-many with attributes : how ?

  - by mada

  Hi, Excuse me for my poor english in advance as it is not my mother tongue. Like in this example: http://www.xylax.net/hibernate/manytomany.html But i have in the table foo-bar 2 attributes which are not part of the primary or foreign keys.: one boolean(A) & one string(B). I know how to map it without attributes but not in this case. I have not found an answer in the documentation. I need to know please how to map it & what kind of collection i have to declare in my class Foo. Thanks in advance for your answer. I really appreciate the time given by you.

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• What can cause my code to run slower when the server JIT is activated?

  - by durandai

  I am doing some optimizations on an MPEG decoder. To ensure my optimizations aren't breaking anything I have a test suite that benchmarks the entire codebase (both optimized and original) as well as verifying that they both produce identical results (basically just feeding a couple of different streams through the decoder and crc32 the outputs). When using the "-server" option with the Sun 1.6.0_18, the test suite runs about 12% slower on the optimized version after warmup (in comparison to the default "-client" setting), while the original codebase gains a good boost running about twice as fast as in client mode. While at first this seemed to be simply a warmup issue to me, I added a loop to repeat the entire test suite multiple times. Then execution times become constant for each pass starting at the 3rd iteration of the test, still the optimized version stays 12% slower than in the client mode. I am also pretty sure its not a garbage collection issue, since the code involves absolutely no object allocations after startup. The code consists mainly of some bit manipulation operations (stream decoding) and lots of basic floating math (generating PCM audio). The only JDK classes involved are ByteArrayInputStream (feeds the stream to the test and excluding disk IO from the tests) and CRC32 (to verify the result). I also observed the same behaviour with Sun JDK 1.7.0_b98 (only that ist 15% instead of 12% there). Oh, and the tests were all done on the same machine (single core) with no other applications running (WinXP). While there is some inevitable variation on the measured execution times (using System.nanoTime btw), the variation between different test runs with the same settings never exceeded 2%, usually less than 1% (after warmup), so I conclude the effect is real and not purely induced by the measuring mechanism/machine. Are there any known coding patterns that perform worse on the server JIT? Failing that, what options are available to "peek" under the hood and observe what the JIT is doing there?

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• MySQL indexes: how do they work?

  - by bob-the-destroyer

  I'm a complete newbie with MySQL indexes. I have several MyISAM tables on MySQL 5.0x having utf8 charsets and collations with 100k+ records each. The primary keys are generally integer. Many columns on each table may have duplicate values. I need to quickly count, sum, average, or otherwise perform custom calculations on any number of fields in each table or joined on any number of others. I found this page giving an overview of MySQL index usage: http://dev.mysql.com/doc/refman/5.0/en/mysql-indexes.html, but I'm still not sure I'm using indexes right. Just when I think I've made the perfect index out of a collection of fields I want to calculate against, I get the "index must be under 1000 bytes" error. Can anyone explain how to most efficiently create and use indexes to speed up queries? Caveat: upgrading Mysql is not possible in this case. Using Navicat Light for db administration, but this app isn't required.

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• Optimal way to generate list of PHP object properties with delimiter character, implode()?

  - by Kris

  I am trying to find out if there is a more optimal way for creating a list of an object's sub object's properties. (Apologies for the crude wording, I am not really much of an OO expert) I have an object "event" that has a collection of "artists", each artist having an "artist_name". On my HTML output, I want a plain list of artist names delimited by a comma. PHP's implode() seems to be the best way to create a comma delimited list of values. I am currently iterating through the object and push values in a temporary array "artistlist" so I can use implode(). That is the shortest I could come up with. Is there a way to do this more elegant? $artistlist = array(); foreach ($event->artists as $artist) { $artistlist[] = $artist->artist_name; } echo implode(', ', $artistlist);

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• MOSS search crawl fails with "Access is denied ..."

  - by strongopinions

  Recently the search crawler stopped working on my MOSS installation. The message in the crawl log is Access is denied. Check that the Default Content Access Account has access to this content, or add a crawl rule to crawl this content. (The item was deleted because it was either not found or the crawler was denied access to it.) The default content account is an admin on the site collection that I am trying to crawl. Almost every result for this error on Google tells me to add the DisableLoobackCheck registry key with a value of 1. I have done this and rebooted and the error continues. The "Do not allow Basic Authentication" checkbox in my crawl rule screen is unchecked. Is there anything else that could be causing this error? Something with file system or database permissions maybe?

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• Compact Framework - ListView like control ?

  - by no9

  Hello. I have been playing with Compact Framework lately and i need some advice. I have a collection of items. One of the properties on each item is a string type that holds XML. This XML defines image, font, style etc... Im looking for a control (similar to listView) that would replace listBox control. Im not satisfied with listView control, because it is very limited on items level. The control has to be dynamic enough so that my parser could parse the XML and customise the control. For a start i would like to show an image and perhaps some font styles for each row in the control. Here is a sample what im trying to achieve: Any suggestions?

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• can oracle types be updated like tables?

  - by Omnipresent

  I am converting GTT's to oracle types as explained in an excellent answer by APC. however, some GTT's are being updated based on a select query from another table. For example: UPDATE my_gtt_1 c SET (street, city, STATE, zip) = (SELECT src.unit_address, src.unit_city, src.unit_state, src.unit_zip_code FROM (SELECT mbr.ROWID row_id, unit_address, RTRIM(a.unit_city) unit_city, RTRIM(a.unit_state) unit_state, RTRIM(a.unit_zip_code) unit_zip_code FROM table_1 b, table_2 a, my_gtt_1 mbr WHERE type = 'ABC' AND id = b.ssn_head AND a.h_id = b.h_id AND row_id >= v_start_row AND row_id <= v_end_row) src WHERE c.ROWID = src.row_id) WHERE state IS NULL OR state = ' '; if my_gtt_1 was not a global temporary table but an oracle collection type then is it possible to do updates this complex? Or in these cases we are better off using the global temporary table?

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• Smack API - How to display loop jxTaskpane for expand and collapse roster list

  - by MYE

  Hello everybody ! i have problem to display Taskpane for loop. i have a code to get the groups of roster (Groups : Friends - Business - Company, so on) my code is : Roster rost = xmppcon.getRoster(); Collection<RosterGroup> groups = rost.getGroups(); for(RosterGroup group : groups){ DefaultListModel model = new DefaultListModel(); model.addElement(group.getEntries()); String GroupNameCount = group.getName() + "("+group.getEntryCount()+")"; jXTaskPane1.setTitle(GroupNameCount); jXList1.setModel(model); } but jxTaskpane not loop, but when i print group name it print 2 line (because in database user A have two group is Friends and NIIT) sample print System.out.println(group.getName()); result: Friends NIIT

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• Adding checkbox dynamically

  - by shiv09

  public Form1 f1 = new Form1(); int p = 150; int q = 100; public void add() { //CheckBox c = new CheckBox(); //c.Location = new Point(p, q); //c.Text = f1.sub[0]; //this.Controls.Add(c); CheckBox chkBox = new CheckBox(); chkBox.Location = new Point(p, q); chkBox.Text = "Checked"; chkBox.Checked = false; chkBox.CheckState = CheckState.Checked; chkBox.CheckedChanged += new EventHandler(chkBox_CheckedChanged);// this.Controls.Add(chkBox); chkBox.Text = f1.sub[1];//The problem is here...whatever value I supply to sub[] it gives the below mentioned error } Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index Here sub[] is a list in form1 which has 5 values...

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• Paging in ActiveRecord

  - by Alex

  Does CastleProject ActiveRecord support paging? I need to load only data which is now seen on the screen. If I use [HasMany], it will be loaded as a whole either immediately or at the first call (if lazy attribute is true). However I only need something like first 100 records (then maybe 100 next records). Another question is how to load only 100 items. If the collection is too big, memory can reach its limit if we constantly load more and more items.

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• MongoDB - how to join parent and child products by reference

  - by Jaro

  my mongo collection stores products. There are two product types: child and parent. Parent product holds array of its child as reference. Use case: use mydb; child1 = { _id: 1, name: "Child 1", is_child: true, is_parent: false, children : [] } child2 = { _id: 2, name: "Child 2", is_child: true, is_parent: false, children : [] } parent = { _id: 3, name: "Parent product", is_child: false, is_parent: true, children : [1, 2] } db.product.insert( [child1, child2, parent] ); And I'm looking for any query returning { _id: 3, name: "Parent product", is_child: false, is_parent: true, children: [ { _id: 1, name: "Child 1", is_child: true, is_parent: false, children : [] }, { _id: 2, name: "Child 2", is_child: true, is_parent: false, children : [] } ] } I'm newbie to mongodb, but I guess an usage of map-reduce could solve the problem. Can anyone advice? Thx

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• Null Pointer Exception in Primavera P6 8.1

  - by gwrichard

  I am getting a null pointer exception in a Primavera P6 8.1 installation. The exception only occurs in one section of the web-client: Application settings.P6 web and the P6 API are deployed on the same WebLogic (10.3.5) node running on a Windows Server 2008 R2 installation. I have done this installation using this same software stack a dozen times and don't have this issue on any of the other installs. Exact error below: Match: beginTraversal Match: digest selected JREDesc: JREDesc[version 1.6.0_20+, heap=-1--1, args=null, href=http://java.sun.com/products/autodl/j2se, sel=false, null, null], JREInfo: JREInfo for index 0: platform is: 1.7 product is: 1.7.0_17 location is: http://java.sun.com/products/autodl/j2se path is: C:\Program Files (x86)\Java\jre7\bin\javaw.exe args is: null native platform is: Windows, x86 [ x86, 32bit ] JavaFX runtime is: JavaFX 2.2.7 found at C:\Program Files (x86)\Java\jre7\ enabled is: true registered is: true system is: true Match: ignoring maxHeap: -1 Match: ignoring InitHeap: -1 Match: digesting vmargs: null Match: digested vmargs: [JVMParameters: isSecure: true, args: ] Match: JVM args after accumulation: [JVMParameters: isSecure: true, args: ] Match: digest LaunchDesc: http://localhost:7001/p6/action/jnlp/appletsjnlp.jnlp?mainClass=com.primavera.pvapplets.adminpreferences.AdminPreferencesApplet&classPath=adminpreferences.jar,prm-applets-common.jar,forms-1.0.7.jar,prm-guisupport.jar,prm-to.jar,jide.jar,tablesupport.jar,formsupport.jar,applets-bo.jar,commons-lang.jar,prm-common.jar,resource_strings.jar,prm-img.jar,commons-logging.jar&name=AdminPreferences&version=8.1.2.0.0602 Match: digest properties: [] Match: JVM args: [JVMParameters: isSecure: true, args: ] Match: endTraversal .. Match: JVM args final: Match: Running JREInfo Version match: 1.7.0.17 == 1.7.0.17 Match: Running JVM args match: have:<> satisfy want:<> Java Plug-in 10.17.2.02 Using JRE version 1.7.0_17-b02 Java HotSpot(TM) Client VM User home directory = C:\Users\gwrichard ---------------------------------------------------- c: clear console window f: finalize objects on finalization queue g: garbage collect h: display this help message l: dump classloader list m: print memory usage o: trigger logging q: hide console r: reload policy configuration s: dump system and deployment properties t: dump thread list v: dump thread stack x: clear classloader cache 0-5: set trace level to <n> ----------------------------------------------------

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• Are there more secure alternatives to the .Net SQLConnection class?

  - by KeyboardMonkey

  Hi SO people, I'm very surprised this issue hasn't been discussed in-depth: This article tells us how to use windbg to dump a running .Net process strings in memory. I spent much time researching the SecureString class, which uses unmanaged pinned memory blocks, and keeps the data encrypted too. Great stuff. The problem comes in when you use it's value, and assign it to the SQLConnection.ConnectionString property, which is of the System.String type. What does this mean? Well... It's stored in plain text Garbage Collection moves it around, leaving copies in memory It can be read with windbg memory dumps That totally negates the SecureString functionality! On top of that, the SQLConnection class is non-inheritable, I can't even roll my own with a SecureString property instead; Yay for closed-source. Yay. A new DAL layer is in progress, but for a new major version and for so many users it will be at least 2 years before every user is upgraded, others might stay on the old version indefinitely, for whatever reason. Because of the frequency the connection is used, marshalling from a SecureString won't help, since the immutable old copies stick in memory until GC comes around. Integrated Windows security isn't an option, since some clients don't work on domains, and other roam and connect over the net. How can I secure the connection string, in memory, so it can't be viewed with windbg?

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• Placement of service methods

  - by mhp

  Let's assume I have two service classes with the following methods: GroupService createGroup() deleteGroup() updateGroup() findGroup() UserService createUser() deleteUser() updateUser() findUser() Now, I am thinking about the aesthetics of theses classes. Imagine we want to implement a method which search for all user of a specific group. Which service class is responsible for such a method? I mean, the return value is a user (or maybe a collection of users) but the parameter (which means the name of the group) is a group. So which service class is the better place to put this method in?

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• Converting MS Word Documents to PDF in ASP.NET

  - by glaxaco

  Similar questions have been asked, but nothing exactly like mine, so here goes. We have a collection of Microsoft Word documents on an ASP.NET web server with merge fields whose values are filled in as a result of user form submissions. After the field merge, the server must convert the document to PDF and stream it down to the browser. Our first inclination was to use the Visual Studio Tools for Office API; however, we ran into this warning from Microsoft: Microsoft does not currently recommend, and does not support, Automation of Microsoft Office applications from any unattended, non-interactive client application or component (including ASP, ASP.NET, DCOM, and NT Services), because Office may exhibit unstable behavior and/or deadlock when Office is run in this environment. It looks like the field manipulation can be done using the Open XML SDK, but what's the best way to convert Word 2007 documents to PDF without opening Word? The optimal solution would be low-cost, scalable, have a low memory footprint, be easy to deploy, and have a .NET API.

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• Can i Automap a tree heirarchy with fluent nhibernate?

  - by NakChak

  Is it possible to auto map a simple nested object structure? Something like this public class Employee : Entity { public Employee() { this.Manages = new List<Employee>(); } public virtual string FirstName { get; set; } public virtual string LastName { get; set; } public virtual bool IsLineManager { get; set; } public virtual Employee Manager { get; set; } public virtual IList<Employee> Manages { get; set; } } Causes the following error at run time: Repeated column in mapping for collection: SharpKtulu.Core.Employee.Manages column: EmployeeFk Is it possible to automap this sort of structure, or do i have over ride the auto mapper for this sort of structure?

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• How to execute statements in order in objective c

  - by Vu Tu?n Anh

  When i tap on my button, my function was called [myBtn addTarget:self action:@selector(myFunction) forControlEvents:UIControlEventTouchUpInside]; In my function, a collection of complex statement will be executed and take a litte bit time to run, so i want to show Loading (UIActivityIndicatorView) as the following: -(void) addTradeAction { //Show Loading [SharedAppDelegate showLoading]; //disable user interaction self.view.userInteractionEnabled = NO; //execute call webservice in here - may be take 10s //Hide Loading [ShareAppDelegate hideLoading]; } When tap on myBtn (my Button) - after 3s or 4s, [ShareAppDelegate showLoading] was called. It is unusual when i use [ShareAppDelegate showLoading] on other Function, - it work very nice, i mean all the statement be executed in order. All i want, when i tap on My Button, Loading will be called immediatelly. Tks in advance

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• Custom app.config section with a simple list of "add" elements

  - by Joe

  How do I create a custom app.config section that is just a simple list of add elements? I have found a few examples (e.g. http://stackoverflow.com/questions/1316058) for custom sections that look like this: <RegisterCompanies> <Companies> <Company name="Tata Motors" code="Tata"/> <Company name="Honda Motors" code="Honda"/> </Companies> </RegisterCompanies> But how do I avoid the extra collection element ("Companies") so that it looks the same as the appSettings and connectionStrings sections? In other words, I'd like: <registerCompanies> <add name="Tata Motors" code="Tata"/> <add name="Honda Motors" code="Honda"/> </registerCompanies>

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• How to have multiple paths display URL as root

  - by Verdi Erel Ergün

  I want users#new and tasks#index to display as the root path URL, i.e. / When a user logs in on the path users#new (set as root) they are redirected to tasks#index and URL does not change. Can this be done in the routes.rb file? This is my routes.rb file: Todo::Application.routes.draw do resources :sessions resources :subscriptions resources :users resources :tasks do collection do post :sort end end root :to => "users#new" match "sessions#new" => "tasks#index" match "sessions#" => "tasks#index"

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• iOS CollectionView with horizontal paging instead of vertical scrolling

  - by Nico Griffioen

  I'm working on a project for a client. It's an iPad pdf reader. The client wants a collection view, but instead of scrolling vertically, he wants it to use a page control. It's pretty hard to explain, but what I basically want is all the PDFs on the device in a grid, like on the iBooks app. When that grid overflows, I want to use a page control to display the extra elements on a second page (like in the weather app). My thoughts on this were: - Create a page control with one page. - On that page, create a UICollectionView. - If the number of elements is greater than 9 add a page to the page control and add another UICollectionView, until there are enough pages to display all elements. However, this seems horribly inefficient, so my question is if there's a better way to do this.

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• How are dll's loaded by the CLR?

  - by priehl

  My assumption was always that the CLR loaded all of the dlls it needed on startup of the app domain. However, I've written an example that makes me question this assumption. I start up my application and check to see how many modules are loaded. Process[] ObjModulesList; ProcessModuleCollection ObjModulesOrig; //Get all modules inside the process ObjModulesList = Process.GetProcessesByName("MyProcessName"); // Populate the module collection. ObjModulesOrig = ObjModulesList[0].Modules; Console.WriteLine(ObjModulesOrig.Count.ToString()); I then repeate the exact same code and my count is different. The additional dll is C:\WINNT\system32\version.dll. I'm really confused as to why the counts would be different. Could someone please elaborate on what the clr is doing and how it's loading these thing, and by what logic it's doing so?

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