eu.bandm.tools.graficUtils

Class SwingWorker

java.lang.Object

eu.bandm.tools.graficUtils.SwingWorker

public abstract class SwingWorker
extends Object

Execute background process in a Swing context on a dedicated thread. This is a modified copy from the "Worker" Class as proposed by Sun, cf. http://java.sun.com/products/jfc/tsc/articles/threads/threads2.html http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html
Call protocol:

      swingthread
                 swingthread
                (or other thread!)
                      |
                      | --->   new()
                      |          
                      | --->   start()
                      |          
                      |        (own thread running)  
                      |          |
                      |          |---> construct()
                      |          |
        finished()<-------------
                      |          
                      | --->    get()         

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
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.
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

getValue

protected Object getValue()

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

construct

public abstract Object construct()

Compute the value to be returned by the get method.

finished

public void finished()

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

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.

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.

Returns:

the value created by the construct method

start

public void start()

Start the worker thread. MUST AT MOST be called ONCE(1x) according to Thread docu!