Package 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
    Modifier
    Constructor
    Description
    protected
    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.
    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 Details

    • SwingWorker

      protected 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.

    • 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!