org.omegahat.Numerics.Optimizers
Class BackgroundTaskManager

java.lang.Object
  |
  +--org.omegahat.Environment.TaskManagement.TaskManager
        |
        +--org.omegahat.Numerics.Optimizers.BackgroundTaskManager

All Implemented Interfaces:

DistributedTaskConstants, java.util.EventListener, IterationListener, java.lang.Runnable

public class BackgroundTaskManager

extends TaskManager

implements IterationListener

Field Summary

protected java.util.Vector

listeners A collection of listeners interested in events.

Fields inherited from class org.omegahat.Environment.TaskManagement.TaskManager

debug, tasks

Fields inherited from interface org.omegahat.Environment.TaskManagement.DistributedTaskConstants

SERVER_DISCARD, SERVER_POOL_CLEAR, SERVER_REJECT, TASK_COMPLETED, TASK_DISPATCH, TASK_ERROR

Constructor Summary

BackgroundTaskManager()

BackgroundTaskManager(TaskQueue q)

Method Summary

int	addListener(IterationListener l) Add the listener to the vector of listeners.
boolean	continueIteration(IterationEvent ev)
java.lang.Object	dispatchTask(Task t) Invoke the event() method of the task supplied as argument, and inform all the listeners about the resulting event.
java.util.Vector	listeners() Get the vector of listeners.
java.util.Vector	listeners(java.util.Vector v) Set the vector of listeners.
void	removeListener(IterationListener l) Remove this listener from the vector of listeners.

Methods inherited from class org.omegahat.Environment.TaskManagement.TaskManager

addListener, addTask, createQueue, getTask, getTask, isComplete, notify, notify, notify, removeListener, run, tasks, tasks, warn

Methods inherited from class java.lang.Object

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

Field Detail

listeners

protected java.util.Vector listeners

A collection of listeners interested in events. The manager will take each event and dispatch the methods to those.

Constructor Detail

BackgroundTaskManager

public BackgroundTaskManager()

BackgroundTaskManager

public BackgroundTaskManager(TaskQueue q)

Method Detail

dispatchTask

public java.lang.Object dispatchTask(Task t)

Invoke the event() method of the task supplied as argument, and inform all the listeners about the resulting event. That is, for all the listeners registered with this task manager, pass the event object from the task to the continueIteration method of the listener.

Overrides:

dispatchTask in class TaskManager

continueIteration

public boolean continueIteration(IterationEvent ev)

Specified by:

continueIteration in interface IterationListener

addListener

public int addListener(IterationListener l)

Add the listener to the vector of listeners. Returns the size of the set of listeners.

removeListener

public void removeListener(IterationListener l)

Remove this listener from the vector of listeners.

listeners

public java.util.Vector listeners()

Get the vector of listeners.

Overrides:

listeners in class TaskManager

listeners

public java.util.Vector listeners(java.util.Vector v)

Set the vector of listeners.

Overrides:

listeners in class TaskManager