issue of class Loader

Similar Questions

• How to operate system class loader in blackberry?

  How the system class loader in blackberry?

  I have a few questions

  * can I load a class with the name of spesific file. for example, I have a file "myclass.txt" at cod. and it's a class file. I can load it?

  ("can I load class as follows: Class.forName("/myclass.txt ");

  * I can load only of class which is the name ends. class. This is a must for file names ends with ".class"?

  * I use Class.forName to load classes. is there another way to load?

  * If a class has a function that is not in the device OS, I can not load. But in the BlackBerry OS does not run applications. However, the OS should throw exception when I try to load this class. is it not?

  The way that J2SE load classes/functions is "properly" so if you tried something like that or used ClassLoader it would be just 'see' setNonSpellCheckable if she was called.

  On BlackBerry, that it is responsible when loading of the entire class, so when loading SpellCheck the native (no developer access) ClassLoader reads everything and said ' wait, I have not this call here, even if it might not get called I don't want to take the risk. "

  Who is?

  A workaround would be something like making a separate file of COD with the device's specific function calls, and then to call, that way if it is not supported on this version of the API that it doesn't get coded into the device specific COD file.

• loadFilePromise() unavailable method in the class Loader using FB 4.7 (target iOS)

  Here is my code:

  

  Note that mpLoader is declared as a class Loader, but when I try to use the loadFilePromise() method, it does not accept it syntactically.

  Is there a reason for this?  I checked then triple in the online documentation. It comes to show me examples where loadFilePromise() works of course...

  What's wrong with this code? Why won't it work?

  I took this code directly from example ActionScript 3 on the Adobe website, but it did not work.

  This is my new solution after 6 days of trial and error (error, for the most part)

  public class TakePhoto extends Sprite
    {
         private var cameraUI:CameraUI = new CameraUI();
         private var cameraRoll:CameraRoll = new CameraRoll();
         private var dataSource:IDataInput;
         private var eventSource:IEventDispatcher;
         private var testTxt:TextField = new TextField();
  
         public function TakePhoto()
         {
              if( CameraUI.isSupported )
              {
                   testTxt.text = "CameraUI Initializing ...";
  
                   cameraUI.addEventListener( MediaEvent.COMPLETE, imageSelected );
                   cameraUI.addEventListener( Event.CANCEL, browseCanceled );
                   cameraUI.addEventListener( ErrorEvent.ERROR, mediaError );
  
                   cameraUI.launch( MediaType.IMAGE );
              }
              else
              {
                   testTxt.text = "CameraUI is not supported.";
              }
           }
  
           private function imageSelected(e:MediaEvent):void
              {
                   trace( "Media selected..." );
                   testTxt.text =  "Media selected...";
  
                   // Create a new imagePromise
                   var imagePromise:MediaPromise = e.data;
  
                   // Open our data source
                   dataSource = imagePromise.open();
  
                   if (imagePromise.isAsync )
                   {
                        trace("Asynchronous");
                        var eventSource:IEventDispatcher = dataSource as IEventDispatcher;
                        eventSource.addEventListener( Event.COMPLETE, onMediaLoaded );
                   }
                   else
                   {
                        trace("Synchronous");
                        readMediaData();
                   }
               }
  
              private function onMediaLoaded( event:Event ):void
              {
                   trace("Media load complete");
                   readMediaData();
              }
  
               private function readMediaData():void
               {
                   testTxt.text = "Read Media Data";
                   trace("Read Media Data");
  
                   var imageBytes:ByteArray = new ByteArray();
                   dataSource.readBytes(imageBytes);
  
                   var loader:Loader = new Loader();
                   loader.loadBytes(imageBytes);
                   loader.contentLoaderInfo.addEventListener(Event.COMPLETE, imageAddToCamRoll);
                   loader.contentLoaderInfo.addEventListener(ErrorEvent.ERROR, onMediaLoadError);
  
                 }
  
              protected function imageAddToCamRoll(event:Event):void
              {
                   var loaderInfo:LoaderInfo = LoaderInfo(event.target);
                   var bmpData : BitmapData  = new BitmapData(loaderInfo.width, loaderInfo.height, false, 0xFFFFFF);
                   bmpData.draw(loaderInfo.loader);
  
                   try
                   {
                        cameraRoll.addBitmapData(bmpData);
                        trace( "image added to cameraRoll" );
                        testTxt.text = "Image added to cameraRoll";
                   }
                   catch (e:Error) {
                        trace( "Caught :: " + e );
                        testTxt.text = "Image failed to add to cameraRoll";
                   }
    }
  

  It worked. Now I can take pictures and store them in the film.

• ClassCastException in the custom class loader

  I created a custom class Leon.
  
  CCL ClassLoaderDemo = new ClassLoaderDemo(); assume that it works very well
  CLAS class = ccl.loadClass ('com '' ' MyObject');
  
  com MyObjectSuperClass o1 = (com. MyObjectSuperClass) clas.newInstance ();
  
  Now I want to get the object responsible for MyObjectSuperClass which is super class if MyObject. But I'm getting the following exception
  
  Exception in thread "main" java.lang.ClassCastException: com. Com cannot be cast to MyObject. MyObjectSuperClass
  
  Help, please.

  821458 wrote:
  My requirement is the class MyObject needs to be loaded by my client class loader. If you say that let the superclass (MyObjectSuperClass) be in the class path and let the class system charge charger, then usually it be a problem

  No, it's exactly what you want.

  MyObject loaded by the custom class loader, its super class loaded by the system class loader, I will be able to cast then.

  Yes, you will be able to cast to the upper class, then.

  It is not similar to the statement "MyObject loaded by the class loader and custom class system are different and we cannot throw.

  No, it isn't. your confusion is due to the fact that you don't seem to understand that you can have a class hierarchy that spans the Chargers of classes. This should be obvious because each object hierarchy extends eventually object, which is always in the system class loader. Therefore, you can always convert any instance of any class loader "Object". in the same way, you can have MyObjectClass in your chargers personalized classes and MyObjectSuperClass in the system class loader. You can instantiate an instance of MyObjectClass to aid reflection on your custom class loaders and assign it to a reference of the type MyObjectSuperClass. This is how pretty much any plugin system is implemented (the API is in the 'main' class loader and the implementation is in a nested class or custom ClassLoader).

• Security issues with dynamic loading

  Hello
  
  I am trying to run a simple RMI example that uses the dynamic class loading but I've hit a problem I can not move - can anyone help?
  
  The problem I have, is that when I run my client program, I get the exception listed at the bottom of my post.
  
  I have the following in my server called WarehouseServer class:
  

     System.setProperty("java.security.policy", "server.policy");  
     System.setSecurityManager(new SecurityManager());  

  I have the a server.policy file located in the same folder as my server class:

      grant {    
          permission java.security.AllPermission "", "";    
      };   

  I run my server using the following command:
  
  * {noformat} java - Djava.rmi.server.codebase = http://localhost: 8080 / WarehouseServer {noformat} *.
  
  I also tried to start the server by using this command:
  
  * {noformat} java - Djava.rmi.server.codebase = http://localhost: 8080 /-Djava.security.policy = server.policy WarehouseServer {noformat} *.
  
  But in both cases, I get the same exception when executing my client program.
  
  Any idea?
  
  
  See you soon,.
  
  Sean.
  
  
  =====================================================================
  
  
  Exception in thread "main" java.rmi.UnmarshalException: error demarshalling return; nested exception is:
  java.lang.ClassNotFoundException: book (no security manager: RMI class loader disabled)
  at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:178)
  at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:178)
  at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:132)
  to $Proxy0.getProduct (Unknown Source)
  at WarehouseClient.main (WarehouseClient.java:32)
  Caused by: java.lang.ClassNotFoundException: book (no security manager: RMI class loader disabled)
  at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:375)
  at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:165)
  in java.rmi.server.RMIClassLoader$ 2.loadClass(RMIClassLoader.java:620)
  at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:247)
  at sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:197)
  at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1574)
  at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1495)
  at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1731)
  at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
  at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
  at sun.rmi.server.UnicastRef.unmarshalValue(UnicastRef.java:306)
  at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:155)
  ... 4 more

  You don't have a security manager in the server or in a windows .policy file either, unless the server will download code itself, which is not a normal scenario.

  But you need to run your client with - Djava.security.manager or anything like that, or install a security manager in the client code. The customer shall also be a .policy windows file that allows all that must be allowed.

• Two copies of a current running applet causes problems of class loader

  If I run two copies of my applet in a browser, I get the form class cast exceptions: class A cannot be cast to class. The class in question is an enum and the error occurs in a static method. And the enum instance is stored in a static variable (final).
  
  I guess that each applet has its own class loader instance and that an instance of the class loader is interpreted by the other charger. (Interestingly, it is the first load of the bodies two applet that fails.) The second load works fine.)
  
  I thought that static variables are specific to the class loaders. Then I don't understand how they get confused. Can someone explain this and suggest how to get around?

  Doctor Dad wrote:
  .. I'm assuming that each applet has its own instance of charger in the classroom...

  A way to make sure.

  See the page of the next generation of Java Applet plug-in technology for more details.

• Difficulties to access the calendar of class loading in the class Doc

  I can't find a way to directly access a MC (or textfield, etc.) on the timeline of a class loaded in my Document class. No problem of the Doc class, but cannot do so directly from the loaded class. Is it something for continual extend the external class class as another Doc?

  Thank you

  :

  import com.johnteal.ExtClassOne;

  .

  .

  .

  var extClass:ExtClassOne = new ExtClassOne (this);

  ///////////////////////

  package...

  public class ExtClassOne... {

  private var mainTL:MovieClipl

  public void ExtClassOne(tl:MovieClip) {}

  mainTL = tl;

  mainTL.myClip_mc.x = 100.

  }

• How to get the class Loader of Progress event

  I was charge test.swf file threw Loader class. How to get the class Loader of ProgressEvent, IOErrorEvent.

  function getLoader() {}
  var loader: Loader = new Loader();
  loader.contentLoaderInfo.addEventListener (ProgressEvent.PROGRESS, progressHandler)
  loader.contentLoaderInfo.addEventListener (IOErrorEvent.IO_ERROR, ioErrorHandler);
  var request: URLRequest = new URLRequest ("test.swf");
  Loader.Load (request);
  }
  function progressHandler(event:ProgressEvent):void {}
  
  get the class loader
  }

  function ioErrorHandler(event:IOErrorEvent):void {}
  get the class loader
  }
  getLoader()

  the event target has a property of charger:

  Event.Target.Loader

• content Flash CS4 class loader is displayed in the browser

  Hello

  I am very new to Dreamweaver and actionscript, so any help would be greatly appreciated!

  I'm on a PC and created a simple gallery in flash cs4 to load images on click of a button.  The images are loaded with a class loader.  When I test the gallery in flash images loading properly.  However, I have inserted the .swf in Dreamweaver and when I downloaded the page on the server, the buttons and animation worked correctly, but none of the images have been posted.  I tested it in Firefox and IE, and it did not work in a browser.

  I thought that perhaps that the files were in an incorrect location, but everything is in the same file, including the .swf and images.  I'm also using TweenMax and all of these files are also with the .swf.

  I also made sure that I got the latest version of the Flash Player, but it still doesn't work.

  Thank you!

  Hello

  First place the following line above thetag.

  Also when I insert the following text to the address, http://dedications.ucdavis.edu/imgs/image01.jpg , I get a 404 message, this shows that the image is not in the place it should be, which shows that you have a problem with your link.

  PZ

• Class loading when spring importing exceptions, EHCache within BPMStudio 10 g

  Hello
  We face class loading / class not found exceptions when importing Spring.jar and EHCache.jar in BPMStudio 10 g catalogue and BPM Enterprise Server 10 g. Java classes are grouped in an external JAR file. This POT is SEO library spring and EHCache. This Java component is called from an automatic BPM process activity. Task execution fails to BPM Studio and Enterprise Server workspace.
  
  We tried to copy the JARS in the following folders. But nothing works.
  
  D:\OraBPMStudioHome\lib
  D:\OraBPMStudioHome\ext
  D:\OraBPMStudioHome\webapps\workspace\WEB-INF\lib
  D:\OraBPMStudioHome\webapps\workspace\WEB-INF\classes
  
  /Server/ < Enterprise_Server_WL_Home > < Domain_Lib >

  Hello
  You should not add any jar file to the installation of BPM Studio. The right way to do is to create an external resource with the jar files and the whole is like "no versionnables."
  More information on:
  http://download.Oracle.com/docs/CD/E13154_01/BPM/docs65/Studio/modules/external_resources/c_Java_Class_Library.html

  Hope this helps,
  Ariel

• Classes Loaded with getDefinitionByName() do not run code

  Hey everybody,

  I recently discovered the amazing features of getDefinitionByName(), but I'm running a few questions that I can't solve.

  I try to load an interactive book pages.  Each page has its own functions, listeners, nested animations and timers.  During the loading in these pages, no stop (s) don't work in the nested clips, and any interactivty was lost.  It's just a waste of a bunch of animations running again and again.

  Here's the code within my PageContainer class:

  package com.display.container

  {

  import flash.display. *;

  import flash.utils.getDefinitionByName;

  SerializableAttribute public class extends MovieClip PageContainer

  {

  public var clip: MovieClip = new MovieClip();

  public var className:String;

  pg1_container; pg2_container; pg3_container; pg4_container; pg5_container;

  pg6_container; pg7_container; pg8_container; pg9_container; pg10_container;

  pg11_container; pg12_container; pg13_container; pg14_container; pg15_container;

  pg16_container; pg17_container; pg18_container; pg19_container; pg20_container;

  pg21_container; pg22_container; pg23_container;

  public void PageContainer (currentPage: Number, target: DisplayObjectContainer,)

  LANDMARK: number, position: number)

  {

  className = "page" + currentPage + "_container;

  var ClassReference: Class = getDefinitionByName (className) class;

  Clip = new ClassReference() as MovieClip;

  clip.x = xLoc;

  clip.y = position;

  target.addChild (clip);

  }

  public void destroy (): void

  {

  trace ('removing');

  clip.parent.removeChild (clip);

  }

  }

  }

  And here's the call to the fla:

  var pageContainers:Array = new Array();

  var currentPage:Number = 1;

  var pageContainer:PageContainer;

  function pageTurn (): void

  {

  pageContainer = pageContainers.shift ();

  If (PageContainer)

  pageContainer.destroy ();

  pageContainer = new PageContainer (currentPage, this, 0, 0);

  pageContainers.push (pageContainer);

  }

  In addition to the MovieClips do not run code, I'm running serious garbage collection issues.  I can unload the display pages, but all the sounds continue to play.

  Does anyone have an idea of why these loaded MovieClips are not running the code, and why they will not correctly unload with the destroy() method?  Thanks in advance for any help!

  It solved!  As is often the case with the code, it was a little thing that makes a huge difference.  I noticed my pg2 worked for a reason, but nothing else has.  I compared the properties of pg2 pg3 and noticed 'Export frame 1' has been selected in pg2, so I put it on yes for all my pages and now they work.

  Thanks again for the help kglad.  I hope anyone else having a similar problem can find this useful advertisement.

• Dynamic class loader during execution

  Hello

  1 as far I understand J2ME does not support the loader class API, and so the only way to dynamically load a class when running is to call Class.forName (). Is this correct? Is there another way around this?

  2 suppose I created a valid class file (' 'file:///SDCard/MyFiles/myClassFile.class ') during execution, if this file is located under the root of the SDCard, how I can call Class.forName and pass the name of the class file I just created? (The problem is that Class.forName expects a full qualified class name in the form: a.b.c.MyClassFile, while the file is physically located on the SD card.)

  Thank you

  Eyal

  Forget the class files. RIM has its own format of distrition with cod. Do not rely on the normal route, the java classes are stored.

  There is no "application" folder, you cannot add the classes here. Sorry

• When the external program C and Java Class loaded in a schema

  Hi all
  I understand that both an external C program and a Java class are loaded after two of them are called in the PL/SQL environment, once they are published and loaded into shared libraries. Is this correct?
  
  Best regards
  Val

  An external procedure is never loaded into a schema. Oracle calls the external program.

  A Java class that is part of a Java stored procedure, however, is charged as a PL/SQL procedure is created - at compile time.

  Justin

• class Loader: several films: click of the mouse to navigate

  I need to use this for two projects. One will play a game and then the next game loads when you click end etc... Another where it's just a presentation. I s'pose the main movie would have a navigation bar-, but would not disappear when I load the next film in.

  It's easy to use the loader class, but when I want to use various clips I have problems.

  IE: I have to use a container movieclip where all the movies are loaded into each new movieclip or creates a new instance of loader to load the next film. This isn't for a Web site.

  Have sth. similar recently on a job. Maybe this is useful:

  LoadingGames

  var games_array:Array is ["game1.swf", "game2.swf", "presentation.swf"];.
  var gamesIndex:uint = 0;

  In the library

  var gameloadingbar:LoadingBar = new LoadingBar();

  function loadGame(e:MouseEvent) {}
  addChild (gameloadingbar);
  Center (gameloadingbar);
  gameLoader = new Loader();
  gameLoader.contentLoaderInfo.addEventListener (ProgressEvent.PROGRESS, loop);
  gameLoader.contentLoaderInfo.addEventListener (Event.COMPLETE, done);
  var gameURL:String = games_array [gamesIndex];
  gameLoader.load (new URLRequest (gameURL));

  preparation for the next content
  gamesIndex ++;
  }

  function loop(e:ProgressEvent):void {}
  var perc:Number=e.bytesLoaded/e.bytesTotal;
  PERC = Math.ceil (PERC * 100);
  trace (PERC);
  trace (Math.Floor (PERC/7) + 1);
  . Gameloadingbar.txt.text of the object (this) = perc;
  }

  function done(e:Event):void {}
  removeChild (gameloadingbar);
  gameloadingbar = null;
  addChild (gameLoader);
  }

• class loader bad

  I came across a really nice class that load a pixel bender filter, and it applies to an image, but so far have not really managed to call in another flash application.

  The class is called PB;

  I tried:

  var p_b:PB = new PB();
  addChild (PB)

  and got a massage of error indicating:

  1067: constraint implied a value of class type to a type unrelated to flash.display:DisplayObject.

  I am new to classes but have been able to implement some other classes before. Not finding what I'm doing wrong here.

  Thanks for any help.

  class:

  package
  {
  import flash.display.MovieClip;
  import flash.display. *;
  import flash.events. *;
  flash.filters import. *;
  import flash.utils.Timer;
  flash.net import. *;
  Import gs.*;
  Gs.easing import. *;
  

  PB/public class extends Sprite
  {
  [Embed(source="resources/images/cavalete.jpg")]
  private var image_c: Class;
  
  private var loader: URLLoader;
  private var shader: Shader;
  private var filter: ShaderFilter;
  public var im:Bitmap;
  private var my_timer:Timer;
  
  function PB (): void
  {
  IM = new image_c() as Bitmap;
  addChild (im);
  loader = new URLLoader();
  loader.dataFormat = URLLoaderDataFormat.BINARY;
  loader.addEventListener (Event.COMPLETE, onComplete);
  Loader.Load (new URLRequest("resources/pixelate.pbj"));
  IM.Alpha = 0;
  TweenMax.to(im,1,{alpha:1});)
  }
  
  private void onComplete(e:Event):void
  {
  repetition of the var: number = 20;
  var delay: Number = 1;
  var amount: Number = 80;
  mon_timer = new Timer (delay, repeat);
  my_timer.addEventListener (TimerEvent.TIMER, timer_handler);
  my_timer.addEventListener (TimerEvent.TIMER_COMPLETE, timer_complete);
  my_timer. Start();
  
  function timer_handler(evt:TimerEvent):void
  {
  repeat.
  Shader = new Shader (loader.data);
  Shader.Data.dimension.Value = [amount];
  filter = new ShaderFilter (shader);
  IM.filters = [filter];
  Quantity-= 4;
  delay + = 100;
  trace (amount)
  }
  function timer_complete(evt:TimerEvent):void
  {
  IM.filters = null;
  }
  }
  }
  }

  To add an instance of the class, you would use...

  var p_b:PB = new PB();
  addChild (p_b);

  PB is the class, but the instance that you add is p_b