ptolemy.actor.lib.hoc
Class Case

java.lang.Object
  ptolemy.kernel.util.NamedObj
      ptolemy.kernel.InstantiableNamedObj
          ptolemy.kernel.Entity
              ptolemy.kernel.ComponentEntity
                  ptolemy.kernel.CompositeEntity
                      ptolemy.actor.CompositeActor
                          ptolemy.actor.TypedCompositeActor
                              ptolemy.actor.lib.hoc.MultiCompositeActor
                                  ptolemy.actor.lib.hoc.Case

All Implemented Interfaces:

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

Direct Known Subclasses:

CTCase

public class Case
extends MultiCompositeActor

An actor that executes one of several refinements depending on the value provided by the control port-parameter. To use this, look inside, add refinement cases, and populate them with computations. Each refinement is a composite that is required to have its own director. The name of the refinement is value that the control must have to execute this refinement. This actor always provides one case called "default". This is the refinement that is executed if no other refinement matches the control input. All refinements have the same ports, and adding ports to any one refinement or to the case actor itself results in identical ports being added to all refinements.

Since:

Ptolemy II 5.2

Version:

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

Author:

Edward A. Lee

See Also:

Serialized Form

Accepted Rating:

Red (reviewmoderator)

Proposed Rating:

Yellow (eal)

Nested Class Summary

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

CompositeEntity.ContainedObjectsIterator

Field Summary

protected Refinement	_current The current refinement.
protected Refinement	_default The default refinement.
protected CaseDirector	_director The director.
PortParameter	control The input port-parameter on which the control token is provided.

Fields inherited from class ptolemy.actor.CompositeActor

_actorFiringListeners, _causalityInterface, _initializables, _notifyingActorFiring, _publishedPorts, _publisherRelations, _stopRequested

Fields inherited from class ptolemy.kernel.CompositeEntity

_levelCrossingLinks

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

Case(CompositeEntity container, java.lang.String name)
Construct a modal model with a name and a container.

Case(Workspace workspace)
Construct a Case in the specified workspace with no container and an empty string as a name.

Method Summary

protected void	_addEntity(ComponentEntity entity) Override the base class to ensure that the default refinement remains last.
protected CaseDirector	_createDirector() Create a director.
private void	_init() Initialize the class.
java.lang.Object	clone(Workspace workspace) Override the base class to ensure that the _default member points to the default refinement.
void	fire() Override the base class to not read inputs, since this has been done in prefire().
Refinement	getCurrentRefinement() Return the current refinement, or null if prefire() has not yet been invoked.
Refinement	newRefinement(java.lang.String name) Create a new refinement with the specified name.
java.lang.String	refinementClassName() Return the class name for refinements that this Case actor expects to contain.

Methods inherited from class ptolemy.actor.lib.hoc.MultiCompositeActor

newPort

Methods inherited from class ptolemy.actor.TypedCompositeActor

_addPort, _addRelation, _checkTypesFromTo, _typeConstraintsFromTo, newRelation, resolveTypes, typeConstraintList, typeConstraints

Methods inherited from class ptolemy.actor.CompositeActor

_actorFiring, _actorFiring, _finishedAddEntity, _getPublishedPort, _setDirector, addActorFiringListener, addInitializable, addPiggyback, connectionsChanged, createReceivers, createSchedule, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inferringWidths, inferWidths, initialize, inputPortList, isFireFunctional, isOpaque, isStrict, iterate, linkToPublishedPort, linkToPublishedPort, needsWidthInference, newInsideReceiver, newReceiver, notifyConnectivityChange, outputPortList, postfire, prefire, preinitialize, recordFiring, registerPublisherPort, removeActorFiringListener, removeInitializable, removePiggyback, requestChange, setContainer, setDirector, setManager, stop, stopFire, terminate, unlinkToPublishedPort, unlinkToPublishedPort, unregisterPublisherPort, wrapup

Methods inherited from class ptolemy.kernel.CompositeEntity

_adjustDeferrals, _deepOpaqueEntityList, _description, _exportMoMLContents, _recordDecoratedAttributes, _removeEntity, _removeRelation, _validateSettables, allAtomicEntityList, allCompositeEntityList, allowLevelCrossingConnect, classDefinitionList, connect, connect, containedObjectsIterator, deepEntityList, deepGetEntities, deepOpaqueEntityList, deepRelationSet, entityList, entityList, exportLinks, exportMoML, getAttribute, getEntities, getEntity, getPort, getRelation, getRelations, isAtomic, lazyAllAtomicEntityList, lazyAllCompositeEntityList, lazyClassDefinitionList, lazyDeepEntityList, lazyEntityList, lazyRelationList, numberOfEntities, numberOfRelations, numEntities, numRelations, relationList, removeAllEntities, removeAllRelations, setClassDefinition, statistics, uniqueName

Methods inherited from class ptolemy.kernel.ComponentEntity

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

Methods inherited from class ptolemy.kernel.Entity

_removePort, connectedPortList, connectedPorts, getPorts, linkedRelationList, linkedRelations, portList, removeAllPorts

Methods inherited from class ptolemy.kernel.InstantiableNamedObj

_setParent, 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, _removeAttribute, _splitName, _stripNumericSuffix, addChangeListener, addDebugListener, attributeChanged, attributeList, attributeList, attributeTypeChanged, clone, 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, 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, postfire, 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

control

public PortParameter control

The input port-parameter on which the control token is provided. This can have any type, and is initialized with a default value of true.

_current

protected Refinement _current

The current refinement.

_default

protected Refinement _default

The default refinement.

_director

protected CaseDirector _director

The director.

Constructor Detail

Case

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

Construct a modal model with a name and a container. The container argument must not be null, or a NullPointerException will be thrown.

Parameters:

container - The container.

name - The name of this actor.

Throws:

IllegalActionException - If the container is incompatible with this actor.

NameDuplicationException - If the name coincides with an actor already in the container.

Case

public Case(Workspace workspace)
     throws IllegalActionException,
            NameDuplicationException

Construct a Case in the specified workspace with no container and an empty string as a name. You can then change the name with setName(). If the workspace argument is null, then use the default workspace.

Parameters:

workspace - The workspace that will list the actor.

Throws:

IllegalActionException - If the name has a period in it, or the director is not compatible with the specified container.

NameDuplicationException - If the container already contains an entity with the specified name.

Method Detail

clone

public java.lang.Object clone(Workspace workspace)
                       throws java.lang.CloneNotSupportedException

Override the base class to ensure that the _default member points to the default refinement.

Overrides:

clone in class CompositeActor

Parameters:

workspace - The workspace for the new object.

Returns:

A new Case.

Throws:

java.lang.CloneNotSupportedException - If any of the attributes cannot be cloned.

See Also:

NamedObj.exportMoML(Writer, int, String), NamedObj.setDeferringChangeRequests(boolean)

getCurrentRefinement

public Refinement getCurrentRefinement()

Return the current refinement, or null if prefire() has not yet been invoked.

Returns:

The current refinement.

fire

public void fire()
          throws IllegalActionException

Override the base class to not read inputs, since this has been done in prefire(). Fire the current refinement, and then send any output data created by calling the local director's transferOutputs method.

Specified by:

fire in interface Executable

Overrides:

fire in class CompositeActor

Throws:

IllegalActionException - If there is no director, or if the director's fire() method throws it, or if the actor is not opaque.

newRefinement

public Refinement newRefinement(java.lang.String name)
                         throws IllegalActionException,
                                NameDuplicationException

Create a new refinement with the specified name.

Parameters:

name - The name of the refinement.

Returns:

The new refinement.

Throws:

IllegalActionException - If the refinement cannot be created.

NameDuplicationException - If a refinement already exists with this name.

refinementClassName

public java.lang.String refinementClassName()

Return the class name for refinements that this Case actor expects to contain.

Returns:

The string "ptolemy.actor.lib.hoc.Refinement".

_addEntity

protected void _addEntity(ComponentEntity entity)
                   throws IllegalActionException,
                          NameDuplicationException

Override the base class to ensure that the default refinement remains last.

Overrides:

_addEntity in class TypedCompositeActor

Parameters:

entity - TypedActor to contain.

Throws:

IllegalActionException - If the entity has no name, or the action would result in a recursive containment structure.

NameDuplicationException - If the name collides with a name already in the entity.

_createDirector

protected CaseDirector _createDirector()
                                throws IllegalActionException,
                                       NameDuplicationException

Create a director. This base class creates an instance of CaseDirector.

Returns:

The created director.

Throws:

IllegalActionException - If the director cannot be created.

NameDuplicationException - If there is already an attribute with the name "_director".

_init

private void _init()
            throws IllegalActionException,
                   NameDuplicationException

Initialize the class.

Throws:

IllegalActionException

NameDuplicationException