ca.nengo.util.impl
Class LearningTask

java.lang.Object
  ca.nengo.util.impl.LearningTask

All Implemented Interfaces:

Resettable, ThreadTask, java.lang.Cloneable

public class LearningTask
extends java.lang.Object
implements ThreadTask

Implementation of a ThreadTask to multithread learning in a plastic ensemble. This task will seperate the learning calculations such as getDerivative into indepdent threadable tasks.

Constructor Summary

LearningTask(LearningTask copy, int start, int end)

LearningTask(PlasticEnsembleImpl parent, PlasticEnsembleTermination termination, int start, int end)

Method Summary

LearningTask	clone()
PlasticEnsembleImpl	getParent()
boolean	isFinished()
void	reset(boolean randomize)
void	run(float startTime, float endTime) Runs the Task, updating the parent Node as needed

Methods inherited from class java.lang.Object

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

Constructor Detail

LearningTask

public LearningTask(PlasticEnsembleImpl parent,
                    PlasticEnsembleTermination termination,
                    int start,
                    int end)

Parameters:

parent - Parent PlasticEnsemble of this task

termination - PlasticEnsembleTermination that this task will learn on

start - Starting index for the set of terminations to learn on

end - Ending index for the set of terminations to learn on

LearningTask

public LearningTask(LearningTask copy,
                    int start,
                    int end)

Parameters:

copy - LearningTask to copy the parent and termination values from

start - Starting index for the set of terminations to learn on

end - Ending index for the set of terminations to learn on

Method Detail

reset

public void reset(boolean randomize)

Specified by:

reset in interface Resettable

Parameters:

randomize - True indicates that the object should be reset to a randomly selected initial state (the object must be aware of the distribution from which to draw from). False indicates that the object should be reset to a fixed initial state (which it must also know). Some objects may not support randomization of the initial state, in which case a fixed state will be used in either case.

See Also:

Resettable.reset(boolean)

getParent

public PlasticEnsembleImpl getParent()

See Also:

ca.nengo.util.ThreadTask#getParent()

isFinished

public boolean isFinished()

Specified by:

isFinished in interface ThreadTask

Returns:

If the task has finished running

See Also:

ThreadTask.isFinished()

run

public void run(float startTime,
                float endTime)
         throws SimulationException

Description copied from interface: ThreadTask

Runs the Task, updating the parent Node as needed

Specified by:

run in interface ThreadTask

Parameters:

startTime - simulation time at which running starts (s)

endTime - simulation time at which running ends (s)

Throws:

SimulationException - if a problem is encountered while trying to run

See Also:

ThreadTask.run(float, float)

clone

public LearningTask clone()
                   throws java.lang.CloneNotSupportedException

Specified by:

clone in interface ThreadTask

Overrides:

clone in class java.lang.Object

Returns:

An independent copy of the Task

Throws:

java.lang.CloneNotSupportedException - if the superclass does not support cloning