Package jade.core.behaviours

Class ThreadedBehaviourFactory.ThreadedBehaviourWrapper

java.lang.Object

jade.core.behaviours.Behaviour

jade.core.behaviours.ThreadedBehaviourFactory.ThreadedBehaviourWrapper

All Implemented Interfaces:

Serializable, Serializable, Runnable

Enclosing class:

ThreadedBehaviourFactory

public class ThreadedBehaviourFactory.ThreadedBehaviourWrapper
extends Behaviour
implements Runnable

Inner class ThreadedBehaviourWrapper This class is declared public for debugging purpose only

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class jade.core.behaviours.Behaviour

Behaviour.RunnableChangedEvent

Field Summary

Fields inherited from class jade.core.behaviours.Behaviour

myAgent, myEvent, NOTIFY_DOWN, NOTIFY_UP, parent, STATE_BLOCKED, STATE_READY, STATE_RUNNING

Method Summary

Modifier and Type	Method	Description
void	action()	Runs the behaviour.
boolean	done()	Check if this behaviour is done.
Behaviour	getBehaviour()
DataStore	getDataStore()	Return the private data store of this Behaviour.
Thread	getThread()
String	getThreadState()
protected void	handle(Behaviour.RunnableChangedEvent rce)	Propagate a DOWNWARDS event (typically this happens when this ThreadedBehaviourWrapper is added as a child of a CompositeBehaviour and the latter, or an ancestor, is blocked/restarted) to the wrapped threaded behaviour.
int	onEnd()	This method is just an empty placeholder for subclasses.
void	onStart()	This method is just an empty placeholders for subclasses.
void	reset()	Restores behaviour initial state.
void	restart()	Propagate a restart() call (typically this happens when this ThreadedBehaviourWrapped is directly added to the agent Scheduler and a message is received) to the wrapped threaded behaviour.
void	run()
void	setDataStore(DataStore ds)	Set the private data store of this Behaviour
protected void	setParent(CompositeBehaviour parent)	Propagate the parent to the wrapped behaviour.

Methods inherited from class jade.core.behaviours.Behaviour

actionWrapper, block, block, getAgent, getBehaviourName, getExecutionState, getParent, getRestartCounter, handleBlockEvent, handleRestartEvent, isRunnable, root, setAgent, setBehaviourName, setExecutionState

Methods inherited from class java.lang.Object

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

Method Detail

onStart

public void onStart()

Description copied from class: Behaviour

This method is just an empty placeholders for subclasses. It is executed just once before starting behaviour execution. Therefore, it acts as a prolog to the task represented by this Behaviour.

Overrides:

onStart in class Behaviour

action

public void action()

Description copied from class: Behaviour

Runs the behaviour. This abstract method must be implemented by Behavioursubclasses to perform ordinary behaviour duty. An agent schedules its behaviours calling their action() method; since all the behaviours belonging to the same agent are scheduled cooperatively, this method must not enter in an endless loop and should return as soon as possible to preserve agent responsiveness. To split a long and slow task into smaller section, recursive behaviour aggregation may be used.

Specified by:

action in class Behaviour

See Also:

CompositeBehaviour

done

public boolean done()

Description copied from class: Behaviour

Check if this behaviour is done. The agent scheduler calls this method to see whether a Behaviour still need to be run or it has completed its task. Concrete behaviours must implement this method to return their completion state. Finished behaviours are removed from the scheduling queue, while others are kept within to be run again when their turn comes again.

Specified by:

done in class Behaviour

Returns:

true if the behaviour has completely executed.

onEnd

public int onEnd()

Description copied from class: Behaviour

This method is just an empty placeholder for subclasses. It is invoked just once after this behaviour has ended. Therefore, it acts as an epilog for the task represented by this Behaviour.
Note that onEnd is called after the behaviour has been removed from the pool of behaviours to be executed by an agent. Therefore calling reset() is not sufficient to cyclically repeat the task represented by this Behaviour. In order to achieve that, this Behaviour must be added again to the agent (using myAgent.addBehaviour(this)). The same applies to in the case of a Behaviour that is a child of a ParallelBehaviour.

Overrides:

onEnd in class Behaviour

Returns:

an integer code representing the termination value of the behaviour.

setParent

protected void setParent(CompositeBehaviour parent)

Propagate the parent to the wrapped behaviour. NOTE that the parent member variable of the wrapped behaviour must point to the DummyParentBehaviour --> From the wrapped behaviour accessing the actual parent must always be retrieved through the getParent() method.

setDataStore

public void setDataStore(DataStore ds)

Description copied from class: Behaviour

Set the private data store of this Behaviour

Overrides:

setDataStore in class Behaviour

Parameters:

ds - the DataStore that this Behaviour will use as its private data store

getDataStore

public DataStore getDataStore()

Description copied from class: Behaviour

Return the private data store of this Behaviour. If it was null, a new DataStore is created and returned.

Overrides:

getDataStore in class Behaviour

Returns:

The private data store of this Behaviour

reset

public void reset()

Description copied from class: Behaviour

Restores behaviour initial state. This method must be implemented by concrete subclasses in such a way that calling reset() on a behaviour object is equivalent to destroying it and recreating it back. The main purpose for this method is to realize multistep cyclic behaviours without needing expensive constructions an deletion of objects at each loop iteration. Remind to call super.reset() from the sub-classes.

Overrides:

reset in class Behaviour

restart

public void restart()

Propagate a restart() call (typically this happens when this ThreadedBehaviourWrapped is directly added to the agent Scheduler and a message is received) to the wrapped threaded behaviour.

Overrides:

restart in class Behaviour

See Also:

Behaviour.block()

handle

protected void handle(Behaviour.RunnableChangedEvent rce)

Propagate a DOWNWARDS event (typically this happens when this ThreadedBehaviourWrapper is added as a child of a CompositeBehaviour and the latter, or an ancestor, is blocked/restarted) to the wrapped threaded behaviour. If the event is a restart, also notify the dedicated thread.

Overrides:

handle in class Behaviour

Parameters:

rce - The event to handle

run

public void run()

Specified by:

run in interface Runnable

getThread

public final Thread getThread()

getBehaviour

public final Behaviour getBehaviour()

getThreadState

public final String getThreadState()