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• Missing [mx.rpc]::IResponder

  - by Arms

  I'm trying to use the Flex 4 SDK's mx.rpc package in a Flash application. I imported Flex's rpc.swc (Adobe\Adobe Flash Builder 4\sdks\4.0.0\frameworks\libs\rpc.swc) into my project by adding it to the list in Flash's "Publish Settings/Flash/ActionScrip 3.0 Settings/Library Path". It seems like I have access to the classes, however when I compile I get this error: 1046: Type was not found or was not a compile-time constant: [mx.rpc]::IResponder. There's no location or line for the error either. Any idea how to get this to work? TIA! Notes: I'm using Flash Builder 4 and Flash CS5

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• Lazy loading of ESB in a jruby rails app

  - by brad

  I have a jruby/rails app using: jruby 1.4.0 Rails 2.3.5 ActiveMQ 5.3.0 Mule ESB 2.2.1 Currently in our environment.rb file we start up Mule in the initializer. This becomes a big pain when we go to do normal rake tasks that don't require JMS/Mule such as db:migrate as it takes a long time to startup/shutdown Mule everytime. The code is similar to this: APP_CONTEXT = Java::our.company.package.service_clients.Initializer.getAppContext(MULE_CONFIG_PATH) And we use APP_CONTEXT to fetch the bean to connect to the appropriate service. I'm trying to figure out some mechanism by which APP_CONTEXT could be lazily instantiated (not in initialize) to avoid all of the pains of having to startup Mule on initialize. Currently we have a few ruby client classes that are instantiated as a before_filter in application_controller such as @data_service = DataService.new(APP_CONTEXT) that initialize the proper java client for each request for use in our controllers. I'm open to all suggestions. I'm having a hard time trying to find the right place to put this lazy instantiation.

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• Is there a way to chain multiple value converters in XAML?

  - by Mal Ross

  I've got a situation in which I need to show an integer value, bound to a property on my data context, after putting it through two separate conversions: Reverse the value within a range (e.g. range is 1 to 100; value in datacontext is 90; user sees value of 10) convert the number to a string I realise I could do both steps by creating my own converter (that implements IValueConverter). However, I've already got a separate value converter that does just the first step, and the second step is covered by Int32Converter. Is there a way I can chain these two existing classes in XAML without having to create a further class that aggregates them? If I need to clarify any of this, please let me know. :) Thanks.

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• How to force myself to follow naming and other conventions

  - by The King

  Hi All, I believe, I program good, atleast my code produces results... But I feel I have drawback... I hardly follow any naming conventions... neither for variables.. nor for methods... nor for classes... nor for tables, columns, SPs... Further to this, I hardly comment anything while programming... I always think that, Let me first see the results and then I will come and correct the var names and other things later... (Thanks to visual studio's reflection here)... But the later does not come... So, I need tips, to force myself to adopt to the practice of following naming conventions, and commenting... Thanks for your time

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• ServletContext getResource not working

  - by David

  I'm trying to use ServletContext.getResource to retrieve a java.net.url reference to an image file (which I will then include in a PDF library using iText). When I use ServletContext.getRealPath("picture.jpg"), I get back a string URL. However, getResource always returns null. Example 1: String picture = ServletContext.getRealPath("picture.jpg"); // picture contains a non-null String with the correct path URL pictureURL = ServletContext.getResource(picture); // pictureURL is always null Example 2: URL pictureURL = ServletContext.getResource("picture.jpg"); // pictureURL is always null So what is the correct way to build a java.net.URL object pointing to a file in my webapps folder? Why does getRealPath work but not getResource? In case it helps at all, here is my folder structure webapps - mySite - picture.jpg Does my picture need to be stored in either WEB-INF or WEB-INF/classes to be read by getResource?

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• Can I get Raid disk status by using PS?

  - by David.Chu.ca

  I have a HP server with Raid 5. Port 0 and 1 are used for data & OS mirroring. The software come with the Raid 5 is Intel Matrix Storage Manager and there is manager console as windows based api to view all the ports, including their status. Now they are all in Normal status. I am not sure if the OS/Windows has some APIs or .Net classes to access raid ports and get their status? If so, how can I use PS to get the information? Do I have to reference to the dlls provided by the Intel Matrix Storage Manager if not? Basically, I would like to write a PS script to get read status. In case any of port disk is not normal, a message will be sent out by growl protocol.

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• How to map IEnumerable<SelectListItem> to IList<> for ListBox

  - by Superhuman

  I have two classes. Class1 and Class2. public class Class1{ ... public virtual IList<Class2> Class2s{get;set;} ... } public class Class2{ ... public virtual IList<Class1> Class1s{get;set;} ... } The view contains <%=Html.ListBox("Class2s", ViewData.Model.Class2s.Select( x => new SelectListItem { Text = x.Name, Value = x.Id.ToString(), Selected = ViewData.Model.Class1.Class2s.Any(y => y.Id == x.Id) }) They have many to many mapping. I have a ListBox in Class1 view which displays Class2. How to map the output of the ListBox back to IList Class2s property of Class1? I am able to display the values in the ListBox but unable to map back the SelectListItem to IList.

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• MVC pattern and State Machine

  - by topright

  I think of a game as a state machine. Game States separate I/O processing, game logic and rendering into different classes: while (game_loop) { game->state->io_events(this); game->state->logic(this); game->state->rendering(); } You can easily change a game state in this approach. MVC separation works in more complex way: while (game_loop) { game->cotroller->io_events(this); game->model->logic(this); game->view->rendering(); } So changing Game States becomes error prone task (switch 3 MVC objects, not 1). What are practical ways of combining these 2 concepts?

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• Creating a web-service client directly from the source

  - by ben

  Hi, I am trying to generate the WS client jar directly from the @Webservice class(es). Let's take this example : package com.example.maven.jaxws.helloservice; import javax.jws.WebService; @WebService public class Hello { public String sayHello(String param) { ; return "Hello " + param; } } I can generate a war file and use glassfish to serve this webservice, and from there I can use the glassfish WSDL URL to generate the client sources. What I am trying to do is to skip the glassfish part. From my maven project defining the webservice, I would like to use the jaxws-maven-plugin to create the client classes but I cannot find any way to specify the actual URL of the webservice. It should be possible right? @see also http://stackoverflow.com/questions/2097789/creating-a-web-service-client-with-a-known-but-inaccessible-wsdl

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• Spring Web Service Client Tutorial or Example Required

  - by Nirmal

  Hello All... I need to jump into the Spring Web Service Project, in that I required to implement the Spring Web Service's Client Only.. So, I have already gone through with Spring's Client Reference Document. So, I got the idea of required classes for the implementation of Client. But my problem is like I have done some googling, but didn't get any proper example of both Client and Server from that I can implement one sample for my client. So, if anybody gives me some link or tutorial for proper example from that I can learn my client side implementation would be greatly appreciated. Thanks in advance...

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• c# Active Directory via WMI

  - by Juri Bogdanov

  Hi! Does anyone has some example about accessing Active Directory, LDAP querying using WMI (System.Management namespace) and not System.DirectoryServices namespace. Here on MSDN page it is described a little using CIM classes http://msdn.microsoft.com/en-us/library/aa392320(v=VS.85).aspx But I cant find some C# example realizing it. For example, to access some Win32 class you have to initialize Scope object to use CIMV2 namespace private ConnectionOptions connection; private ManagementScope scope; ... connection = new ConnectionOptions(); ... scope = new ManagementScope("\\\\" + computer + "\\root\\CIMV2", connection); try { scope.Connect(); } And use ObjectQuery class for querying WMI data ObjectQuery objectQuery = new ObjectQuery("SELECT Name FROM Win32_Processor"); ManagementObjectSearcher searcher = ManagementObjectSearcher(scope, objectQuery); foreach (ManagementObject queryObj in searcher.Get()) { return queryObj["Name"].ToString(); } How is it possible to access AD using the same scope? Thanks :)

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• Inherit a parent class docstring as __doc__ attribute

  - by Reinout van Rees

  There is a question about Inherit docstrings in Python class inheritance, but the answers there deal with method docstrings. My question is how to inherit a docstring of a parent class as the __doc__ attribute. The usecase is that Django rest framework generates nice documentation in the html version of your API based on your view classes' docstrings. But when inheriting a base class (with a docstring) in a class without a docstring, the API doesn't show the docstring. It might very well be that sphinx and other tools do the right thing and handle the docstring inheritance for me, but django rest framework looks at the (empty) .__doc__ attribute. class ParentWithDocstring(object): """Parent docstring""" pass class SubClassWithoutDoctring(ParentWithDocstring): pass parent = ParentWithDocstring() print parent.__doc__ # Prints "Parent docstring". subclass = SubClassWithoutDoctring() print subclass.__doc__ # Prints "None" I've tried something like super(SubClassWithoutDocstring, self).__doc__, but that also only got me a None.

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• Apple iPad and PDF support

  - by STeN

  Hi, I have few questions related to the PDF and its use on the Apple iPad: 1) Does the iPad support all Quartz PDF functions (i.e. all CGPDFxxx functions/classes)? 2) Does the iPad support the PDF Kit? 3) Is it possible with any of one of both APIs, based on the coordinates of the finger touch to detect the underlying PDF item (e.g. article, text, annotations) ? 4) What is the difference between the Quartz PDF functions and PDF Kit? Thanks a lot Regards, STeN

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• Hibernate MySQL transaction configuration issue

  - by James

  I'm having trouble starting a transaction with Hibernate and MySQL while running in JUnit. I'm getting a HibernateException which states: "No TransactionManagerLookup specified". I believe this error is because I don't have a proper configuration setting for hibernate.transaction.manager_lookup_class. I see that under the namespace of org.hibernate.transaction there are quite a few different lookup classes that I could use. All of the documentation that I could find on these was very vague. My question is what is the appropriate one for MySQL?

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• Undocumented Mac Calls

  - by Brian Postow

  I'm working on a couple of mac products, and in order to do what I need to do, I'm using some calls to undocumented methods on Mac Classes. Like IKImageView's doRotate:(id) and PDFDocument's (NSPrintOperation *)getPrintOperationForPrintInfo:(NSPrintInfo *)printInfo autoRotate:(BOOL)doRotate; How common is it for Objective C programmers to use methods like this? How do you find out about them (other than Google)? How dangerous is it to use them? Is there a danger other than that Apple will make them no-longer available in some future rev, and so your program will break?

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• Visual Studio autoclean?

  - by kubal5003

  Hello, I have a solution with multiple projects - executable, library, and others(unimportant right now). Library contains EF entity classes and executable uses them. When I'm working on some code from the executable then every entity that I use is marked as an error and compiler says that I should check usings and references. Reference in the executable project is set to library project(not the dll itself). When I build the library project then everything gets back to normal, but when I start typing then it happens again. I could live with it, but intelli sense isn't working and that is quite a disadvantage. Any ideas?

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• iPhone: Sharing protocol/delegate code

  - by pion

  I have the following code protocol snippets: @protocol FooDelegate; @interface Foo : UIViewController { id delegate; } ... @protocol FooDelegate ... // method 1 ... // method 2 ... @end Also, the following code which implements FooDelegate: @interface Bar1 : UIViewController { ... } @interface Bar2 : UITableViewController { ... } It turns out the implementation of FooDelegate is the same on both Bar1 and Bar2 classes. I currently just copy FooDelegate implementation code from Bar1 to Bar2. How do I structure/implement in such a way that Bar1 and Bar2 share the same code in a single code base (not as currently with 2 copies) since they are the same? Thanks in advance for your help.

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• How to mock a RIA service

  - by Budda

  Is there any ability to mock methods that are provided with RIA Services? I would like to test my Silverlight App without communication to the server side... I see a following approach: create a separate interface; add it to "base classes" for my RiaService; define each autogenerated RIA-method in this interface; insert dependency so that my "functionality" will depend not from the RiaService, but from the interface that is implemented with RiaService. But for this case I see a problem: how to keep my interface in the auto-generated files? ANy thoughts are welcome.

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• Are Multiple Iterators possible in php?

  - by artvolk

  Good day! I know that C# allows multiple iterators using yield, like described here: http://stackoverflow.com/questions/1754041/is-multiple-iterators-is-possible-in-c In PHP there is and Iterator interface. Is it possible to implement more than one iteration scenario for a class? More details (EDIT): For example I have class TreeNode implementing single tree node. The whole tree can be expressed using only one this class. I want to provide iterators for iterating all direct and indirect children of current node, for example using BreadthFirst or DepthFirst order. I can implement this Iterators as separate classes but doing so I need that tree node should expose it's children collection as public. C# pseudocode: public class TreeNode<T> { ... public IEnumerable<T> DepthFirstEnumerator { get { // Some tree traversal using 'yield return' } } public IEnumerable<T> BreadthFirstEnumerator { get { // Some tree traversal using 'yield return' } } }

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• AS3 Event Bubbling outside of the Scenegraph/DisplayList

  - by Brian Heylin

  Hi just wondering if it is possible to take advantage of event bubbling in non display list classes in AS3. For example in the model of an application where there is a City class that contains many Cars. What methods are there to attach an event listener to a City object and receive events that bubble up from the child Cars. To clarify The City and Car objects are not part of the display list, they are not DisplayObjects. So can bubbling be implemented outside of the display list somehow? As far as I know, this is not possible without manually attaching event listeners to each Car object and re dispatching the event from the City object. Anyone else have a cleaner solution?

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• adobe flash buider (flex4): addChild() is not available in this class.

  - by ufk

  Hi. I want to be able to load an swf into a flex 4 application in order to use it's classes. var ldr:Loader=new Loader(); ldr.load(new URLRequest("file://path/to/fileswf")); ldr.contentLoaderInfo. addEventListener(Event.INIT, loaded); function loaded(evt:Event):void { addChild(ldr); } i receive the error: Error: addChild() is not available in this class. Instead, use addElement() or modify the skin, if you have one. at spark.components.supportClasses::SkinnableComponent/addChild()[E:\dev\gumbo_beta2\frameworks\projects\spark\src\spark\components\supportClasses\SkinnableComponent.as:966] at main/private:init/loaded()[C:\Documents and Settings\ufk\Adobe Flash Builder Beta 2\xpogames-toolkit-test\src\main.mxml:22] if i change addChild() to addElement() i receive the following compilation error: 1067: Implicit coercion of a value of type flash.display:Loader to an unrelated type mx.core:IVisualElement. main.mxml path/dir line 22 Flex Problem any ideas how to resolve the issue ?

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• Objective-C initial values of created C-array

  - by kpower

  I create an array, similar to classic C (not NSArray or one of it's children) - something like BOOL i[5];. And I want to make all its values to be equal to NO. First of all, I didn't found any information about initial values of such arrays (I know that in classic C they will be undefined, but don't know exactly about Objective-C. I found info about classes and its inner data [after allocation, without initialization], but not about simple data types). And the second, if I should set array values manually - should I use memset(...); or something different? To prevent possible questions... I want to use this construction as array of temporary boolean flags and don't think that it is proved to use something like NSArray here.

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• ASP.Net MVC and N-Tier

  - by Damien

  Greetings, Apologies in advance that I have not researched this toughly enough to answer the question myself, but I imagine it would take me some time and I would rather know now before I invest more time in learning it. I couldn't find anything in my initial research.. Why use ASP.Net MVC if your already using a multi-tier architecture (Data Layer, Logic Layer, Presentation Layer)? Other than the fact the controller has more power than the logic layer. Am I right in thinking I can use nHibernate and all my data access classes, entities, and mappings in the Model part of the MVC? When using controllers, is it best to separate a lot of the logic into a separate class so I can call it from multiple controllers? Or can I call them from the controllers themselves, considering the fact that I would not want all of them to be Actions, just normal methods. Thanks

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• A good design pattern for almost similar objects

  - by Sam

  Hello, I have two websites that have an almost identical database schema. the only difference is that some tables in one website have 1 or 2 extra fields that the other and vice versa. I wanted to the same Database Access layer classes to will manipulate both websites. What can be a good design pattern that can be used to handle that little difference. for example, I have a method createAccount(Account account) in my DAO class but the implementation will be slightly different between website A and website B. I know design patterns don't depend on the language but FYI i m working with Perl. Thanks

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• Mixin or Trait implementation in AS3?

  - by Brian Heylin

  I'm looking for ideas on how to implement a Mixin/Trait style system in AS3. I want to be able to compose a number of classes together into a single object. Of course this is not a language level feature of AS3, but I'm hoping that there is maybe some way to do this using prototype based techniques or maybe some bytecode hacking that I believe AsMock uses to implement it's functionality. An existing Java example is Qi4J where the user define interfaces that the Qi4j framework implements based on metadata tags and coding by convention. Has anyone any ideas on how to get the Mixin/Trait concept working within AS3?

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