Package ptolemy.kernel.util

Interface Singleton

All Known Implementing Classes:

ChicControllerFactory, DebugController, DeltaConstraintSolverDisplayActions, DependencyHighlighter, DocAttribute, EventQueueDebugger, GeneratorAttribute, GeneratorTableauAttribute, GiottoTimingManager, GTFrameTools.DelegatedUndoStackAttribute, HierarchicalModeControllerFactory, HierarchicalStateControllerFactory, IDAttribute, LayoutHint, Location, MoMLModelAttributeControllerFactory, MonitorReceiverAttribute, MonitorReceiverContents, NodeControllerFactory, OntologyDisplayActions, ParserAttribute, PersistenceAttribute, ProductLatticeOntologySolverDisplayActions, RelativeLocation, ResizableAttributeControllerFactory, SingletonAttribute, SingletonConfigurableAttribute, StateMatcherController.Factory, TransformationAttributeController.Factory, TransformEventController.Factory, TransientSingletonConfigurableAttribute, UndoStackAttribute, URIAttribute, Vertex

public interface Singleton

This interface is used to indicate that an attribute is a singleton, meaning that when setContainer() is called, if there is a previous instance of the attribute, then that previous instance is removed.

Since:

Ptolemy II 4.0

Version:

$Id$

Author:

Edward A. Lee

Pt.AcceptedRating:

Green (cxh)

Pt.ProposedRating:

Green (eal)