ptolemy.domains.ct.lib
Class CTTriggeredSampler

java.lang.Object
  extended by ptolemy.kernel.util.NamedObj
      extended by ptolemy.kernel.InstantiableNamedObj
          extended by ptolemy.kernel.Entity
              extended by ptolemy.kernel.ComponentEntity
                  extended by ptolemy.actor.AtomicActor
                      extended by ptolemy.actor.TypedAtomicActor
                          extended by ptolemy.actor.lib.Transformer
                              extended by ptolemy.domains.ct.lib.CTTriggeredSampler
All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable, Actor, Executable, FiringsRecordable, Initializable, TypedActor, CTEventGenerator, Changeable, Debuggable, DebugListener, Derivable, Instantiable, ModelErrorHandler, MoMLExportable, Moveable, Nameable

public class CTTriggeredSampler
extends Transformer
implements CTEventGenerator

This actor samples the continuous input signal when there is a discrete event presents at the "trigger" input. The actor has a multi-input port and a multi-output port. Signals in each input channel are sampled and produced to corresponding output channel.

Since:
Ptolemy II 1.0
Version:
$Id: CTTriggeredSampler.java 57040 2010-01-27 20:52:32Z cxh $
Author:
Jie Liu
See Also:
Serialized Form
Accepted Rating:
Red (cxh)
Proposed Rating:
Red (liuj)

Nested Class Summary
 
Nested classes/interfaces inherited from class ptolemy.kernel.Entity
Entity.ContainedObjectsIterator
 
Field Summary
 TypedIOPort trigger
          The input port for triggering.
 
Fields inherited from class ptolemy.actor.lib.Transformer
input, output
 
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
CTTriggeredSampler(CompositeEntity container, java.lang.String name)
          Construct an actor in the specified container with the specified name.
 
Method Summary
 java.lang.Object clone(Workspace workspace)
          Clone the actor into the specified workspace.
 void fire()
          Emit the current events, which are the tokens of the latest input tokens if a trigger input is present.
 boolean hasCurrentEvent()
          Return true if there is a trigger event.
 
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, connectionsChanged, createReceivers, declareDelayDependency, getCausalityInterface, getDirector, getExecutiveDirector, getManager, initialize, inputPortList, isFireFunctional, isStrict, iterate, newReceiver, outputPortList, postfire, 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, 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

trigger

public TypedIOPort trigger
The input port for triggering. The port has a generic type. Only the presents of a token matters.

Constructor Detail

CTTriggeredSampler

public CTTriggeredSampler(CompositeEntity container,
                          java.lang.String name)
                   throws IllegalActionException,
                          NameDuplicationException
Construct an actor in the specified container with the specified name. The name must be unique within the container or an exception is thrown. The container argument must not be null, or a NullPointerException will be thrown.

Parameters:
container - The container.
name - The actor's name
Throws:
IllegalActionException - If the entity cannot be contained by the proposed container.
NameDuplicationException - If name coincides with an entity already in the container.
Method Detail

clone

public java.lang.Object clone(Workspace workspace)
                       throws java.lang.CloneNotSupportedException
Clone the actor into the specified workspace. This calls the base class and then sets the port types.

Overrides:
clone in class AtomicActor
Parameters:
workspace - The workspace for the new object.
Returns:
A new actor.
Throws:
java.lang.CloneNotSupportedException - If a derived class has an attribute that cannot be cloned.
See Also:
NamedObj.exportMoML(Writer, int, String), NamedObj.setDeferringChangeRequests(boolean)

fire

public void fire()
          throws IllegalActionException
Emit the current events, which are the tokens of the latest input tokens if a trigger input is present.

Specified by:
fire in interface Executable
Overrides:
fire in class AtomicActor
Throws:
IllegalActionException - If the hasToken() query failed or tokens cannot be sent from the output.

hasCurrentEvent

public boolean hasCurrentEvent()
Return true if there is a trigger event. If the hasToken() query on the trigger input throws an exception then throw an InternalErrorException.

Specified by:
hasCurrentEvent in interface CTEventGenerator
Returns:
True if there is a token in the trigger port.