ewe.sys
Class ThreadTask

java.lang.Object
  ewe.sys.ThreadTask

All Implemented Interfaces:

Runnable

public abstract class ThreadTask

extends Object

implements Runnable

Field Summary

boolean	complete This is set true when doTask() has returned.
Throwable	exception This is set to any exception thrown when run in a separate mThread.

Constructor Summary

ThreadTask()

Method Summary

protected abstract void	doTask(boolean runningInSeparateThread, Object data, Wrapper returnValue) You must override this method.
Wrapper	execute(Object data) This attempts to execute the task.
void	run()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, toString

Field Detail

complete

public boolean complete

This is set true when doTask() has returned.

exception

public Throwable exception

This is set to any exception thrown when run in a separate mThread.

Constructor Detail

ThreadTask

public ThreadTask()

Method Detail

doTask

protected abstract void doTask(boolean runningInSeparateThread,
                               Object data,
                               Wrapper returnValue)

You must override this method. If the task should return a value it should call one of the setXXX() methods in the returnValue wrapper.

run

public final void run()

Specified by:

run in interface Runnable

execute

public Wrapper execute(Object data)

This attempts to execute the task. If the current thread is an mThread then it will call doTask() directly and return the Wrapper that will hold the return value of the task.

If the current Thread is not an mThread, then it will create a new mThread which will then call doTask() - and this method will return null.

Parameters:

data - optional data to send to the task.

Returns:

A Wrapper holding the return value from doTask() or null if the task was postponed to be run in an mThread.