org.compiere.apps
Class SwingWorker

java.lang.Object
  org.compiere.apps.SwingWorker

public abstract class SwingWorker
extends Object

SwingWorker (based on SwingWorker 3). To use the SwingWorker class, you create a subclass of it. In the subclass, you must implement the construct() method contains the code to perform your lengthy operation. You invoke start() on your SwingWorker object to start the thread, which then calls your construct() method. When you need the object returned by the construct() method, you call the SwingWorker's get() method.

      SwingWorker worker = new SwingWorker()
      {
          public Object construct()
          {
              return new expensiveOperation();
          }
      };
      worker.start();
      //  do something
      //  when you need the result:
      x = worker.get();   //  this blocks the UI !!
  

//TODO: Replace with Java 6 version

Constructor Summary

SwingWorker()
Start a thread that will call the construct method and then exit.

Method Summary

abstract Object	construct() Compute the value to be returned by the get method.
void	finished() Called on the event dispatching thread (not on the worker thread) after the construct method has returned.
Object	get() Return the value created by the construct method.
protected Object	getValue() Get the value produced by the worker thread, or null if it hasn't been constructed yet.
void	interrupt() A new method that interrupts the worker thread.
boolean	isAlive() Is worker Alive
void	start() Start the worker thread.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SwingWorker

public SwingWorker()

Start a thread that will call the construct method and then exit.

Method Detail

construct

public abstract Object construct()

Compute the value to be returned by the get method.

Returns:

value

finished

public void finished()

Called on the event dispatching thread (not on the worker thread) after the construct method has returned.

getValue

protected Object getValue()

Get the value produced by the worker thread, or null if it hasn't been constructed yet.

Returns:

value of worker

start

public void start()

Start the worker thread.

get

public Object get()

Return the value created by the construct method. Returns null if either the constructing thread or the current thread was interrupted before a value was produced. (Blocks UI)

Returns:

the value created by the construct method

interrupt

public void interrupt()

A new method that interrupts the worker thread. Call this method to force the worker to stop what it's doing.

isAlive

public boolean isAlive()

Is worker Alive

Returns:

true if alive