Class SwingWorker
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.
private static class | SwingWorker.ThreadVar - Class to maintain reference to current worker thread
under separate synchronization control.
|
SwingWorker() - Start a thread that will call the
construct method
and then exit.
|
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.
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void | interrupt() - A new method that interrupts the worker thread.
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private void | setValue(Object x) - Set the value produced by worker thread
|
void | start() - Start the worker thread.
|
thread
private Thread thread
value
private Object value
SwingWorker
public SwingWorker()
Start a thread that will call the construct
method
and then exit.
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.
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.
- the value created by the
construct
method
getValue
protected Object getValue()
Get the value produced by the worker thread, or null if it
hasn't been constructed yet.
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.
setValue
private void setValue(Object x)
Set the value produced by worker thread
start
public void start()
Start the worker thread.