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java.lang.Object ptolemy.kernel.util.NamedObj ptolemy.kernel.InstantiableNamedObj ptolemy.kernel.Entity ptolemy.kernel.ComponentEntity ptolemy.actor.AtomicActor ptolemy.actor.TypedAtomicActor ptolemy.backtrack.automatic.ptolemy.actor.lib.Sequence
public class Sequence
This actor produces a sequence of values, optionally periodically repeating them. The values parameter contains an ArrayToken that specifies the sequence of values to produce at the output. If the enable input port is connected, then it provides a boolean sequence that specifies whether to produce an output. If the enable is present and true, then the actor will produce the next output. Otherwise, it produces no output and will produce the next in the sequence on the next firing (if enable is true). If the holdLastOutput parameter is true, then the sequence is infinite, with the last value being repeated forever.
Compared with the Pulse actor, this actor can be enabled or disabled on each firing by providing a true or false input on the enable port.
Pulse
,
Serialized Form
Red (cxh) |
Yellow (eal) |
Nested Class Summary |
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Nested classes/interfaces inherited from class ptolemy.kernel.Entity |
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Entity.ContainedObjectsIterator |
Field Summary | |
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private int |
_currentIndex
|
private boolean |
_outputProduced
|
protected Checkpoint |
$CHECKPOINT
|
private FieldRecord |
$RECORD$_currentIndex
|
private FieldRecord |
$RECORD$_outputProduced
|
protected CheckpointRecord |
$RECORD$$CHECKPOINT
|
private FieldRecord[] |
$RECORDS
|
TypedIOPort |
enable
The enable input port. |
Parameter |
holdLastOutput
A flag indicating whether to interpret the values as an infinite sequence where the last value is repeated forever. |
TypedIOPort |
output
The output port. |
Parameter |
repeat
The flag that indicates whether the sequence needs to be repeated. |
Parameter |
values
The values that will be produced on the output. |
Fields inherited from class ptolemy.actor.AtomicActor |
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_actorFiringListeners, _initializables, _notifyingActorFiring, _stopRequested |
Fields inherited from class ptolemy.kernel.util.NamedObj |
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_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKS |
Fields inherited from interface ptolemy.actor.Executable |
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COMPLETED, NOT_READY, STOP_ITERATING |
Constructor Summary | |
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Sequence(CompositeEntity container,
java.lang.String name)
Construct an actor in the specified container with the specified name. |
Method Summary | |
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private int |
$ASSIGN$_currentIndex(int newValue)
|
private boolean |
$ASSIGN$_outputProduced(boolean newValue)
|
private int |
$ASSIGN$SPECIAL$_currentIndex(int operator,
long newValue)
|
void |
$COMMIT(long timestamp)
Commit changes up to the given timestamp, but not including changes made at timestamp and afterward. |
Checkpoint |
$GET$CHECKPOINT()
Get the checkpoint object that monitors this rollbackable object. |
void |
$RESTORE(long timestamp,
boolean trim)
Restore a previous state to all the private fields of this rollbackable object. |
java.lang.Object |
$SET$CHECKPOINT(Checkpoint checkpoint)
Set the checkpoint object of this rollbackable object. |
java.lang.Object |
clone(Workspace workspace)
Clone the actor into the specified workspace. |
void |
fire()
If the enable input is connected, then if it has a true token, produce the next output. |
void |
initialize()
Initialize the actor by resetting to the first output value. |
boolean |
postfire()
Update the state of the actor by moving to the next value in the values array. |
Methods inherited from class ptolemy.actor.TypedAtomicActor |
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_addPort, _fireAt, _fireAt, attributeTypeChanged, clone, newPort, typeConstraintList, typeConstraints |
Methods inherited from class ptolemy.kernel.ComponentEntity |
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_adjustDeferrals, _checkContainer, _getContainedObject, _propagateExistence, getContainer, instantiate, isAtomic, isOpaque, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, propagateExistence, setName |
Methods inherited from class ptolemy.kernel.Entity |
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_description, _exportMoMLContents, _removePort, _validateSettables, connectedPortList, connectedPorts, containedObjectsIterator, getAttribute, getPort, getPorts, linkedRelationList, linkedRelations, portList, removeAllPorts, setClassDefinition, uniqueName |
Methods inherited from class ptolemy.kernel.InstantiableNamedObj |
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_setParent, exportMoML, getChildren, getElementName, getParent, getPrototypeList, isClassDefinition, isWithinClassDefinition |
Methods inherited from class java.lang.Object |
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equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface ptolemy.actor.Actor |
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createReceivers, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, newReceiver, outputPortList |
Methods inherited from interface ptolemy.actor.Executable |
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isFireFunctional, isStrict, iterate, prefire, stop, stopFire, terminate |
Methods inherited from interface ptolemy.actor.Initializable |
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addInitializable, preinitialize, removeInitializable, wrapup |
Methods inherited from interface ptolemy.kernel.util.Nameable |
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description, getContainer, getDisplayName, getFullName, getName, getName, setName |
Methods inherited from interface ptolemy.kernel.util.Derivable |
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getDerivedLevel, getDerivedList, propagateValue |
Field Detail |
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protected transient Checkpoint $CHECKPOINT
public TypedIOPort enable
public Parameter holdLastOutput
public TypedIOPort output
public Parameter repeat
public Parameter values
private int _currentIndex
private boolean _outputProduced
protected transient CheckpointRecord $RECORD$$CHECKPOINT
private transient FieldRecord $RECORD$_currentIndex
private transient FieldRecord $RECORD$_outputProduced
private transient FieldRecord[] $RECORDS
Constructor Detail |
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public Sequence(CompositeEntity container, java.lang.String name) throws IllegalActionException, NameDuplicationException
container
- The container.name
- The name of this actor within the container.
IllegalActionException
- If the actor cannot be contained
by the proposed container.
NameDuplicationException
- If the name coincides with
an actor already in the container.Method Detail |
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public java.lang.Object clone(Workspace workspace) throws java.lang.CloneNotSupportedException
clone
in class AtomicActor
workspace
- 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 fire() throws IllegalActionException
fire
in interface Executable
fire
in class AtomicActor
IllegalActionException
- If there is no director.public void initialize() throws IllegalActionException
initialize
in interface Initializable
initialize
in class AtomicActor
IllegalActionException
- If there is no director.public boolean postfire() throws IllegalActionException
postfire
in interface Executable
postfire
in class AtomicActor
IllegalActionException
- If there is no director.private final int $ASSIGN$_currentIndex(int newValue)
private final int $ASSIGN$SPECIAL$_currentIndex(int operator, long newValue)
private final boolean $ASSIGN$_outputProduced(boolean newValue)
public void $COMMIT(long timestamp)
Rollbackable
$COMMIT
in interface Rollbackable
timestamp
- The timestamp.public void $RESTORE(long timestamp, boolean trim)
Rollbackable
$RESTORE
in interface Rollbackable
timestamp
- The timestamp taken at the time when the previous
state was recorded.trim
- Whether to delete the records used for the rollback.Checkpoint.rollback(long, boolean)
public final Checkpoint $GET$CHECKPOINT()
Rollbackable
$GET$CHECKPOINT
in interface Rollbackable
public final java.lang.Object $SET$CHECKPOINT(Checkpoint checkpoint)
Rollbackable
$SET$CHECKPOINT
in interface Rollbackable
checkpoint
- The new checkpoint object.
Checkpoint.setCheckpoint(Checkpoint)
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