public class MultiInstanceComposite extends TypedCompositeActor
TypedCompositeActor that creates multiple
instances of itself during the preinitialize phase of model execution.
A MultiInstanceComposite actor may be used to instantiate nInstances identical processing blocks within a model. This actor
(the "master") creates nInstances - 1 additional
instances (clones) of itself during the preinitialize() phase
of model execution and destroys these additional instances during model
CompositeActor.wrapup(). MultiInstanceComposite must be opaque (have
a director), so that its Actor interface methods (preinitialize(), ...,
wrapup()) are invoked during model initialization. Each instance may
refer to its instance [0..nInstances-1] parameter
which is set automatically by the master if it needs to know its
instance number.
MultiInstanceComposite input ports must not be multiports (for now) and may be connected to multiports or regular ports. During preinitialize(), the master MultiInstanceComposite determines how its input ports are connected, and creates additional relations in its container (the model it is embedded in) to connect the input ports of its clones (instances) to the same output port if that port is a multiport. If that output port is a regular port, the clone's input port is linked to the already existing relation between that output port and the master's input port. MultiInstanceComposite output ports must not be multiports (for now) and must be connected to input multiports. The master MultiInstanceComposite creates additional relations to connect the output ports of its clones to the input port. Finally, after all these connections are made, the master's preinitialize() calls preinitialize() of the clones.
From here on until wrapup(), nothing special happens. Type resolution occurs on all instances in the modified model, so does initialize() and the computation of schedules by directors of the master and clones.
During model wrapup(), the master MultiContextComposite deletes any relations created, unlinks any ports if needed, and deletes the clones it created. To re-synchronize vergil's model graph, an empty ChangeRequest is also queued with the Manager.
Actor parameters inside MultiInstanceComposite may refer to parameters of the container model. This presents a problem during cloning() and wrapup() where the container model's parameters are not in scope during the clone's validateSettables() (unless the MultiInstanceComposite is built as a moml class having its own set of parameters). This problem is for now solved by providing a temporary scope copy using a ScopeExtendingAttribute for the cloning() and wrapup() phases of the clones.
CompositeEntity.ContainedObjectsIterator| Modifier and Type | Field and Description |
|---|---|
Parameter |
instance
The index of this instance.
|
Parameter |
nInstances
The total number of instances to instantiate including instance
0 (the master copy).
|
Parameter |
showClones
If true, show the clones.
|
_actorFiringListeners, _causalityInterface, _derivedPiggybacks, _initializables, _notifyingActorFiring, _piggybacks, _publishedPorts, _publisherRelations, _stopRequested, _subscribedPorts_levelCrossingLinks_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _deferChangeRequests, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKSCOMPLETED, NOT_READY, STOP_ITERATING| Constructor and Description |
|---|
MultiInstanceComposite(CompositeEntity container,
java.lang.String name)
Construct a MultiInstanceComposite actor with the given container
and name.
|
MultiInstanceComposite(Workspace workspace)
Construct a MultiInstanceComposite actor in the specified
workspace with no container and an empty string as a name.
|
| Modifier and Type | Method and Description |
|---|---|
java.lang.Object |
clone(Workspace workspace)
Clone a "master copy" of this actor into the specified workspace
- note that this is not used for creating the additional
instances.
|
void |
preinitialize()
Call the base class to perform standard preinitialize(), and, if
this is the master copy, proceed to create
nInstances-1
additional copies, and link them to the same input/output ports
this master is connected to. |
_addEntity, _addPort, _addRelation, _checkTypesFromTo, _destinationTypeConstraints, attributeChanged, attributeTypeChanged, isBackwardTypeInferenceEnabled, newPort, newRelation, resolveTypes, typeConstraintList, typeConstraints_actorFiring, _actorFiring, _finishedAddEntity, _setDirector, _transferPortParameterInputs, addActorFiringListener, addInitializable, addPiggyback, connectionsChanged, createReceivers, createSchedule, fire, getCausalityInterface, getDirector, getExecutiveDirector, getManager, getPublishedPort, getPublishedPortChannel, getPublishedPorts, getSubscribedPortChannel, inferringWidths, inferWidths, initialize, inputPortList, isFireFunctional, isOpaque, isPublishedPort, isStrict, iterate, linkToPublishedPort, linkToPublishedPort, linkToPublishedPort, linkToPublishedPort, needsWidthInference, newInsideReceiver, newReceiver, notifyConnectivityChange, outputPortList, postfire, prefire, recordFiring, registerPublisherPort, registerPublisherPort, removeActorFiringListener, removeInitializable, removePiggyback, requestChange, setContainer, setDirector, setManager, stop, stopFire, terminate, unlinkToPublishedPort, unlinkToPublishedPort, unlinkToPublishedPort, unlinkToPublishedPort, unregisterPublisherPort, unregisterPublisherPort, wrapup_adjustDeferrals, _containedDecorators, _deepOpaqueEntityList, _description, _exportMoMLContents, _removeEntity, _removeRelation, _validateSettables, allAtomicEntityList, allowLevelCrossingConnect, classDefinitionList, connect, connect, containedObjectsIterator, deepCompositeEntityList, deepEntityList, deepGetEntities, deepNamedObjList, deepOpaqueEntityList, deepRelationSet, entityList, entityList, exportLinks, exportMoML, getAttribute, getEntities, getEntity, getPort, getRelation, getRelations, isAtomic, lazyAllAtomicEntityList, lazyAllCompositeEntityList, lazyAllCompositeTransparentAndOpaqueEntityList, lazyClassDefinitionList, lazyDeepEntityList, lazyEntityList, lazyRelationList, numberOfEntities, numberOfRelations, numEntities, numRelations, relationList, removeAllEntities, removeAllRelations, setClassDefinition, statistics, uniqueName_checkContainer, _getContainedObject, _propagateExistence, getContainer, instantiate, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, propagateExistence, setName_removePort, connectedPortList, connectedPorts, getPorts, linkedRelationList, linkedRelations, portList, removeAllPorts_setParent, getChildren, getElementName, getParent, getPrototypeList, isClassDefinition, isWithinClassDefinition_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _copyChangeRequestList, _debug, _debug, _debug, _debug, _debug, _executeChangeRequests, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _notifyHierarchyListenersAfterChange, _notifyHierarchyListenersBeforeChange, _propagateValue, _removeAttribute, _splitName, _stripNumericSuffix, addChangeListener, addDebugListener, addHierarchyListener, attributeDeleted, attributeList, attributeList, clone, decorators, 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, notifyOfNameChange, propagateValue, propagateValues, removeAttribute, removeChangeListener, removeDebugListener, removeHierarchyListener, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, validateSettables, workspaceequals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitcreateReceivers, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, newReceiver, outputPortListfire, isFireFunctional, isStrict, iterate, postfire, prefire, stop, stopFire, terminateaddInitializable, initialize, removeInitializable, wrapupdescription, getContainer, getDisplayName, getFullName, getName, getName, setNamegetDerivedLevel, getDerivedList, propagateValuepublic Parameter nInstances
public Parameter instance
public Parameter showClones
public MultiInstanceComposite(Workspace workspace)
workspace - The workspace of this object.public MultiInstanceComposite(CompositeEntity container, java.lang.String name) throws IllegalActionException, NameDuplicationException
container - The container.name - The name of this actor.IllegalActionException - If the actor cannot be contained
by the proposed container.NameDuplicationException - If the container already has an
actor with this name.public java.lang.Object clone(Workspace workspace) throws java.lang.CloneNotSupportedException
clone in class CompositeActorworkspace - The workspace for the new object.java.lang.CloneNotSupportedException - If a derived class contains
an attribute that cannot be cloned.NamedObj.exportMoML(Writer, int, String),
NamedObj.setDeferringChangeRequests(boolean)public void preinitialize()
throws IllegalActionException
nInstances-1
additional copies, and link them to the same input/output ports
this master is connected to.preinitialize in interface Initializablepreinitialize in class CompositeActorIllegalActionException - If cloning the additional
copies fails, or if any ports are not connected to multiports.