Package org.locationtech.jtstest.testbuilder.ui

Class SwingWorker

java.lang.Object

org.locationtech.jtstest.testbuilder.ui.SwingWorker

Direct Known Subclasses:

RendererSwingWorker

public abstract class SwingWorker
extends 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.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	SwingWorker.ThreadVar	Class to maintain reference to current worker thread under separate synchronization control.

Field Summary

Fields

Modifier and Type	Field	Description
private SwingWorker.ThreadVar	threadVar
private Object	value

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	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.
private void	setValue(Object x)	Set the value produced by 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

Field Details

value

private Object value

threadVar

private SwingWorker.ThreadVar threadVar

Constructor Details

SwingWorker

public SwingWorker()

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

Method Details

getValue

protected Object getValue()

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

setValue

private void setValue(Object x)

Set the value produced by worker thread

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.