ptolemy.domains.dde.lib
Class DDESink

java.lang.Object
  ptolemy.kernel.util.NamedObj
      ptolemy.kernel.InstantiableNamedObj
          ptolemy.kernel.Entity
              ptolemy.kernel.ComponentEntity
                  ptolemy.actor.AtomicActor
                      ptolemy.actor.TypedAtomicActor
                          ptolemy.domains.dde.lib.DDESink

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, Actor, Executable, FiringsRecordable, Initializable, TypedActor, Changeable, Debuggable, DebugListener, Derivable, Instantiable, ModelErrorHandler, MoMLExportable, Moveable, Nameable

public class DDESink
extends TypedAtomicActor

DDESink is simple DDE actor that consumes real tokens. This actor has a parameter named 'numTokens' that specifies the number of real tokens that this actor will consume. If numTokens is set to a negative value, then this actor will continue to consume tokens as long as they are available. If numTokens is set to a non-negative value 'k', then this actor will consume k tokens.

Since:

Ptolemy II 0.3

Version:

$Id: DDESink.java 57040 2010-01-27 20:52:32Z cxh $

Author:

John S. Davis II

See Also:

Serialized Form

Accepted Rating:

Red (cxh)

Proposed Rating:

Red (davisj)

Nested Class Summary

Nested classes/interfaces inherited from class ptolemy.kernel.Entity

Entity.ContainedObjectsIterator

Field Summary

private boolean	_continue
private int	_count
TypedIOPort	input The input port.
Parameter	numTokens Indicate the integer valued number of real tokens that this actor should consume.

Fields inherited from class ptolemy.actor.AtomicActor

_actorFiringListeners, _initializables, _notifyingActorFiring, _stopRequested

Fields inherited from class ptolemy.kernel.util.NamedObj

_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKS

Fields inherited from interface ptolemy.actor.Executable

COMPLETED, NOT_READY, STOP_ITERATING

Constructor Summary

DDESink(CompositeEntity container, java.lang.String name)
Construct a DDESink with the specified container and name.

Method Summary

void	fire() Execute this actor by consuming a real token.
boolean	postfire() Return true if this actor is enabled to proceed with additional iterations.

Methods inherited from class ptolemy.actor.TypedAtomicActor

_addPort, _fireAt, _fireAt, attributeTypeChanged, clone, newPort, typeConstraintList, typeConstraints

Methods inherited from class ptolemy.actor.AtomicActor

_actorFiring, _actorFiring, addActorFiringListener, addInitializable, clone, connectionsChanged, createReceivers, declareDelayDependency, getCausalityInterface, getDirector, getExecutiveDirector, getManager, initialize, inputPortList, isFireFunctional, isStrict, iterate, newReceiver, outputPortList, prefire, preinitialize, pruneDependencies, recordFiring, removeActorFiringListener, removeDependency, removeInitializable, setContainer, stop, stopFire, terminate, wrapup

Methods inherited from class ptolemy.kernel.ComponentEntity

_adjustDeferrals, _checkContainer, _getContainedObject, _propagateExistence, getContainer, instantiate, isAtomic, isOpaque, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, propagateExistence, setName

Methods inherited from class ptolemy.kernel.Entity

_description, _exportMoMLContents, _removePort, _validateSettables, connectedPortList, connectedPorts, containedObjectsIterator, getAttribute, getPort, getPorts, linkedRelationList, linkedRelations, portList, removeAllPorts, setClassDefinition, uniqueName

Methods inherited from class ptolemy.kernel.InstantiableNamedObj

_setParent, exportMoML, getChildren, getElementName, getParent, getPrototypeList, isClassDefinition, isWithinClassDefinition

Methods inherited from class ptolemy.kernel.util.NamedObj

_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _debug, _debug, _debug, _debug, _debug, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _propagateValue, _recordDecoratedAttributes, _removeAttribute, _splitName, _stripNumericSuffix, addChangeListener, addDebugListener, attributeChanged, attributeList, attributeList, deepContains, depthInHierarchy, description, description, event, executeChangeRequests, exportMoML, exportMoML, exportMoML, exportMoML, exportMoMLPlain, getAttribute, getAttributes, getChangeListeners, getClassName, getDecoratorAttribute, getDecoratorAttributes, getDerivedLevel, getDerivedList, getDisplayName, getFullName, getModelErrorHandler, getName, getName, getSource, handleModelError, isDeferringChangeRequests, isOverridden, isPersistent, lazyContainedObjectsIterator, message, propagateValue, propagateValues, removeChangeListener, removeDebugListener, requestChange, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, validateSettables, workspace

Methods inherited from class java.lang.Object

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

Methods inherited from interface ptolemy.actor.Actor

createReceivers, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, newReceiver, outputPortList

Methods inherited from interface ptolemy.actor.Executable

isFireFunctional, isStrict, iterate, prefire, stop, stopFire, terminate

Methods inherited from interface ptolemy.actor.Initializable

addInitializable, initialize, preinitialize, removeInitializable, wrapup

Methods inherited from interface ptolemy.kernel.util.Nameable

description, getContainer, getDisplayName, getFullName, getName, getName, setName

Methods inherited from interface ptolemy.kernel.util.Derivable

getDerivedLevel, getDerivedList, propagateValue

Field Detail

input

public TypedIOPort input

The input port.

numTokens

public Parameter numTokens

Indicate the integer valued number of real tokens that this actor should consume. If this value is negative, then there is no limit on the number of tokens that this actor will consume. The default value of this parameter is -1.

_count

private int _count

_continue

private boolean _continue

Constructor Detail

DDESink

public DDESink(CompositeEntity container,
               java.lang.String name)
        throws IllegalActionException,
               NameDuplicationException

Construct a DDESink with the specified container and name.

Parameters:

container - The container of this actor.

name - The name of this actor.

Throws:

NameDuplicationException - If the name of this actor duplicates that of a actor already contained by the container of this actor.

IllegalActionException - If there are errors in instantiating and specifying the type of this actor's ports.

Method Detail

fire

public void fire()
          throws IllegalActionException

Execute this actor by consuming a real token. If the numTokens parameter has been set to a non-negative value 'k', then stop iterating after 'k' real tokens have been consumed. If the value of numTokens is negative, then continue consuming real tokens as long as they are available.

Specified by:

fire in interface Executable

Overrides:

fire in class AtomicActor

Throws:

IllegalActionException - If there is an exception while accessing the receivers of this actor.

postfire

public boolean postfire()
                 throws IllegalActionException

Return true if this actor is enabled to proceed with additional iterations. Return false otherwise.

Specified by:

postfire in interface Executable

Overrides:

postfire in class AtomicActor

Returns:

True if continued execution is enabled; false otherwise.

Throws:

IllegalActionException - Not thrown in this base class.

See Also:

fire()