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• Implement delegates for Core Data or not

  - by Spanky

  What advantage is there to implementing the four delegate methods: (void)controllerWillChangeContent:(NSFetchedResultsController *)controller (void)controller:(NSFetchedResultsController *)controller didChangeSection:(id )sectionInfo atIndex:(NSUInteger)sectionIndex forChangeType:(NSFetchedResultsChangeType)type (void)controller:(NSFetchedResultsController *)controller didChangeObject:(id)anObject atIndexPath:(NSIndexPath *)indexPath forChangeType:(NSFetchedResultsChangeType)type newIndexPath:(NSIndexPath *)newIndexPath (void)controllerDidChangeContent:(NSFetchedResultsController *)controller rather than implement: (void)controllerDidChangeContent:(NSFetchedResultsController *)controller Any help appreciated // :)

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• static NSStrings in Objective-C

  - by MikeyWard

  I frequently see a code snippet like this in class instance methods: static NSString *myString = @"This is a string."; I can't seem to figure out why this works. Is this simply the objc equivalent of a #define that's limited to the method's scope? I (think) I understand the static nature of the variable, but more specifically about NSStrings, why isn't it being alloc'd, init'd? Thanks~

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• Program to change/obfuscate all hashes (MD5/SHA1) in a directory tree?

  - by anon

  Hi fellas, A) Are there any FOSS programs out there that can manage to hashchange all files in a directory tree? B) Failing that, what methods could be used to develop this capability in a (crappy) self-written program without requiring the program to be sophisticated and content-aware? Is there any (roughly) universally safe location within a file (for example, around EOF?) where on could one simply append/add psuedorandom data so the resulting hash is different? Is there a better/more elegant solution? Muchos gracias

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• Using search to solve problems

  - by dan

  am trying to write a 4 x 4 grid using vertical bars and underscore. I have a class for the puzzle, but i want to know what fields and methods i can use to represent and manipulate a configuration for the puzzle

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• BlockingQueue decorator that logs removed objects

  - by scompt.com

  I have a BlockingQueue that's being used in a producer-consumer situation. I would like to decorate this queue so that every object that's taken from it is logged. I know what the straightforward implementation would look like: simply implement BlockingQueue and accept a BlockingQueue in the constructor to which all of the methods would delegate. Is there another way that I'm missing? A library perhaps? Something with a callback interface?

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• How to discover getters and setters on hibernate objects

  - by Michael Jones

  I need to find a way of taking a hibernate object and discovering at runtime all of the getter methods that relate to persistable fields. I'm using annotations in the classes but have previously had difficulties working with them (I ran into a 2 year old bug the java developers still haven't fixed). Does anyone know how I can do this please, ideally without using annotations? Thanks. PS - What I'm trying to do here is to update a new object with values from an existing object dynamically.

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• JUnit : Is there a way to skip a test belonging to a Test class's parent?

  - by Jon

  I have two classes: public abstract class AbstractFoobar { ... } and public class ConcreteFoobar extends AbstractFoobar { ... } I have corresponding test classes for these two classes: public class AbstractFoobarTest { ... } and public class ConcreteFoobarTest extends AbstractFoobarTest { ... } When I run ConcreteFoobarTest (in JUnit), the annotated @Test methods in AbstractFoobarTest get run along with those declared directly on ConcreteFoobarTest because they are inherited. Is there anyway to skip them?

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• where to find "template" interfaces?

  - by fayer

  i wonder where one can find template interfaces. eg. i am creating these classes that implements iLog: DatabaseLog ScreenLog FileLog i wonder what methods should a typical Log class have? is there a set of interfaces you could just implement/learn from rather than reinvent the wheel and have to think about the method names. eg. Interfaces: iLog iDatabase iErrorMessage etc. Thanks

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• Best practices to parse xml files?

  - by domoaringatoo

  The default methods for dealing with xml in c# seem incredibly crude to me, leading me to suspect that I must be missing something in my searches. What is considered the standard best practices to parse xml files in c#?

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• Simplest way to draw primitives in Java (not OpenGL)

  - by Little Jeans

  Just started to getting familiar with graphics in Java. What is the simplest way to draw primitives (lines, rectangles) in Java without OpenGL (JOGL)? Looking for methods like putPixel, lineTo, etc.

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• How to get structure of a Google Protobuf message without the definition

  - by dqminh

  I have to get the message structure of a protobuf message transfered to me without the message's definition. Using UnknownFieldSet methods, I was able to get a string representation of the message as below: 1: "a" 2: { 3:"b" 4:"c" } What data structure does field 2 represent ? Using UnknownFieldSet.Field.getGroupList i was able to get the content of field 3 and 4, does that means field 2 has the "deprecated" group structure ?

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• Avoiding overload hell with c# 4.0

  - by dotnetdev

  I am using C# 4.0, how can I avoid the problem of writing lots of similiar methods because they are each parameter-unique (how can the new parameter features avoid overload hell?). Thanks

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• Android @Override usage

  - by BahaiResearch.com

  (Newbie to Java, old time C# guy.) I have noticed a lot of the use of @Override in Android example code. I thought that all Java methods were by default "Virutal"? What then does @Override do? Example: private class HelloWebViewClient extends WebViewClient { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { view.loadUrl(url); return true; } }

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• Detect if a method was overridden using Reflection (C#)

  - by Andrey

  Say I have a base class TestBase where I define a vistual method TestMe() class TestBase { public virtual bool TestMe() { } } Now I inherit this class: class Test1 : TestBase { public override bool TestMe() {} } Now, using Reflection, I need to find if the method TestMe has been overriden in child class - is it possible? What I need it for - I am writing a designer visualizer for type "object" to show the whole hierarchy of inheritance and also show which virtual methods were overridden at which level.

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• loca service/ invoke method

  - by rayman

  Hi, ive configured local service under some app. i wanna know how could i invoke methods on the activity, through the service while sending parameters to that method. (the method exists in the activity) thanks.

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• Debug the StackOverFlow exception

  - by BDotA

  When I run my C# program it throws an Stack Overflow exception in one of the methods on a DLL that I have a reference to it in my solution. but no debugging info is available to me because it says it is an stack overflow exception and no info is available. what are the next debugging steps that I should follow to understand what is going on and why ? thanks Edit: here is the code that stops at: static public Collection SortCollection(Collection oCollection, string sPropertyName, string sKeyPropertyName) { return SortCollection(oCollection, sPropertyName, sKeyPropertyName); }

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• Is there any practical difference between an extension method on <T> or on Object?

  - by Scott Bilas

  Is there any practical difference between these two extension methods? class Extensions { public static void Foo<T>(this T obj) where T : class { ... } public static void Foo(this object obj) { ... } } I was poking around in Extension Overflow and I came across the first form, which I haven't used before. Curious what the difference is.

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• Connecting FLEX 3.0, JAVA WITH MYSQL

  - by Nithi

  How to connect to MYSQL DB from Java, create table, insert data, retrieve it with datatypes. How to make use of the data to/from in Flex application. plz help me out.. i have basic knowledge in sending and receiving messages using BlazeDS. and calling JAVA METHODS USING ...

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• .htaccess or PHP protection code against multiple speedy requests

  - by Phil Jackson

  Hi, I am looking for ideas for how I can stop external scripts connecting with my site. I'm looking for the same kind of idea behind Google. As in if a certain amount of requests are made per a certain amount of time then block the IP address or something. I thought there maybe a htaccess solution if not, I will write a PHP one. Any ideas or links to existing methods or scripts is much appreciated. Regards Phil

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• Auto comment all public members in a file

  - by ooo

  I have turned on warnings as errors and now i need to XML comment all of my public methods. just to get my program compiling, i just want to put placeholders for now. Is there anyway to automatically add XML comments to all of the public members in a class or a file. I see ghost doc which gives you good autogenerated XML comments but it still looks like it only does one member at a time.

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• Adding procedural C openGL functions to an iPhone project

  - by user309595

  I want to add a few drawing functions to an iPhone project for drawing things. Something like drawTile(x,y,len,wid); which would call openGL to draw a box somewhere. I should just be able to write a procedural C file to do this but the openGL libraries are objective C and I'm getting weird errors. Do I have to make a class for all of my drawing commands and call class methods?

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• instantiate object with reflection using constructor arguments

  - by justin

  I'm trying to figure out how to instantiate a case class object with reflection. Is there any support for this? The closest I've come is looking at scala.reflect.Invocation, but this seems more for executing methods that are a part of an object. case class MyClass(id:Long, name:String) def instantiate[T](className:String)(args:Any*) : T = { //your code here } Is close to the API I'm looking for. Any help would be appreciated.

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• Passing Request Object into Service Layer

  - by SpringTrickery

  In a spring mvc + spring core app, we have have a view layers, a facade, a service layer, a dao layer and a stored-proc based persistance layer. The service layer is unaware of the clients that utilitize its methods. Is it fine to propagate raw http requests into the service layer? Or is it bad practice and a violation of the loose coupling principles? If it is, then what's a clean workaround?

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• Decorator that can take both init args and call args?

  - by digitala

  Is it possible to create a decorator which can be __init__'d with a set of arguments, then later have methods called with other arguments? For instance: from foo import MyDecorator bar = MyDecorator(debug=True) @bar.myfunc(a=100) def spam(): pass @bar.myotherfunc(x=False) def eggs(): pass If this is possible, can you provide a working example?

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• Asp.Net MVC How to test that the view rendered

  - by Miau

  HI there I was wondering if there is a better way of testing that a view has rendered in MVC. I was thinking perhaps I should render the view to a string but perhaps there are simpler methods? Basically what I want to know if that the view for a given action has rendered without errors I m already testing the view model but I want to see that rendering the view giving a correct ViewData.Model works

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