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com.xerox.VTM.engine
Class SwingWorker  

java.lang.Object
  com.xerox.VTM.engine.SwingWorker

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public abstract class SwingWorker

extends java.lang.Object

This is the 3rd version of SwingWorker. (also known as * SwingWorker 3), an abstract class that you subclass to * perform GUI-related work in a dedicated thread. For * instructions on using this class, see: * * http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html * * Note that the API changed slightly in the 3rd version: * You must now invoke start() on the SwingWorker after * creating it.

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Nested Class Summary
private static class	SwingWorker.ThreadVar           * Class to maintain reference to current worker thread * under separate synchronization control.

 

Field Summary
private  java.lang.Thread	thread
private  SwingWorker.ThreadVar	threadVar
private  java.lang.Object	value

 

Constructor Summary

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

 

Method Summary
abstract  java.lang.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.
java.lang.Object	get()           Return the value created by the construct method.
protected  java.lang.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.
private  void	setValue(java.lang.Object x)           * Set the value produced by worker thread
void	sleep(int ms)           A new method that puts the thread to sleep for ms millisecs
void	start()           Start the worker thread.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

value

private java.lang.Object value

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thread

private java.lang.Thread thread

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threadVar

private SwingWorker.ThreadVar threadVar

Constructor Detail

SwingWorker

public SwingWorker()

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

Method Detail

getValue

protected java.lang.Object getValue()

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

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setValue

private void setValue(java.lang.Object x)

* Set the value produced by worker thread

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construct

public abstract java.lang.Object construct()

* Compute the value to be returned by the get method.

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finished

public void finished()

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

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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.

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sleep

public void sleep(int ms)

A new method that puts the thread to sleep for ms millisecs

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get

public java.lang.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. * * @return the value created by the construct method

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start

public void start()

Start the worker thread.

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