ptolemy.actor.lib
Class Commutator.WidthDependentParameter

java.lang.Object
  ptolemy.kernel.util.NamedObj
      ptolemy.kernel.util.Attribute
          ptolemy.kernel.util.AbstractSettableAttribute
              ptolemy.data.expr.Variable
                  ptolemy.data.expr.Parameter
                      ptolemy.actor.lib.Commutator.WidthDependentParameter

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, HasTypeConstraints, Typeable, Changeable, Debuggable, DebugListener, Derivable, ModelErrorHandler, MoMLExportable, Moveable, Nameable, Settable, ValueListener

Enclosing class:

Commutator

private static class Commutator.WidthDependentParameter
extends Parameter

This class will set _port.getWidth() + " * blockSize" as expression of the parameter, but will only do it when the token is requested to delay the triggering of the width.

Nested Class Summary

Nested classes/interfaces inherited from class ptolemy.data.expr.Variable

Variable.VariableScope

Nested classes/interfaces inherited from class ptolemy.kernel.util.NamedObj

NamedObj.ContainedObjectsIterator

Nested classes/interfaces inherited from interface ptolemy.kernel.util.Settable

Settable.Visibility

Field Summary

private IOPort

_port

Fields inherited from class ptolemy.data.expr.Variable

_currentExpression, _needsEvaluation, _parserScope, _parseTreeValid, _valueListeners

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.kernel.util.Settable

EXPERT, FULL, NONE, NOT_EDITABLE

Constructor Summary

Commutator.WidthDependentParameter(NamedObj container, java.lang.String name, IOPort port)

Method Summary

Token	getToken() Get the token contained by this variable.
(package private) void	setPort(IOPort port)

Methods inherited from class ptolemy.data.expr.Parameter

addChoice, exportMoML, getChoices, removeAllChoices, removeChoice

Methods inherited from class ptolemy.data.expr.Variable

_description, _evaluate, _notifyValueListeners, _parseIfNecessary, _propagate, _propagateToValueListeners, _propagateValue, _setToken, _setTokenAndNotify, addValueListener, clone, getDeclaredType, getExpression, getFreeIdentifiers, getParserScope, getScope, getScope, getType, getTypeTerm, getValueAsString, getVariable, getVisibility, invalidate, isKnown, isLazy, isStringMode, isTypeAcceptable, removeValueListener, reset, setContainer, setExpression, setLazy, setName, setParseTreeEvaluator, setStringMode, setToken, setToken, setTypeAtLeast, setTypeAtLeast, setTypeAtMost, setTypeEquals, setTypeSameAs, setUnknown, setVisibility, stringRepresentation, toString, typeConstraintList, typeConstraints, validate, valueChanged

Methods inherited from class ptolemy.kernel.util.AbstractSettableAttribute

getDefaultExpression

Methods inherited from class ptolemy.kernel.util.Attribute

_checkContainer, _getContainedObject, _propagateExistence, getContainer, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, updateContent

Methods inherited from class ptolemy.kernel.util.NamedObj

_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _debug, _debug, _debug, _debug, _debug, _exportMoMLContents, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _recordDecoratedAttributes, _removeAttribute, _splitName, _stripNumericSuffix, _validateSettables, addChangeListener, addDebugListener, attributeChanged, attributeList, attributeList, attributeTypeChanged, clone, containedObjectsIterator, deepContains, depthInHierarchy, description, description, event, executeChangeRequests, exportMoML, exportMoML, exportMoML, exportMoML, exportMoMLPlain, getAttribute, getAttribute, getAttributes, getChangeListeners, getClassName, getDecoratorAttribute, getDecoratorAttributes, getDerivedLevel, getDerivedList, getDisplayName, getElementName, getFullName, getModelErrorHandler, getName, getName, getPrototypeList, getSource, handleModelError, isDeferringChangeRequests, isOverridden, isPersistent, lazyContainedObjectsIterator, message, propagateExistence, propagateValue, propagateValues, removeChangeListener, removeDebugListener, requestChange, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, uniqueName, validateSettables, workspace

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface ptolemy.kernel.util.Settable

getDisplayName

Methods inherited from interface ptolemy.kernel.util.Nameable

description, getContainer, getFullName, getName, getName

Field Detail

_port

private IOPort _port

Constructor Detail

Commutator.WidthDependentParameter

public Commutator.WidthDependentParameter(NamedObj container,
                                          java.lang.String name,
                                          IOPort port)
                                   throws IllegalActionException,
                                          NameDuplicationException

Throws:

IllegalActionException

NameDuplicationException

Method Detail

getToken

public Token getToken()
               throws IllegalActionException

Description copied from class: Variable

Get the token contained by this variable. The type of the returned token is always that returned by getType(). Calling this method will trigger evaluation of the expression, if the value has been given by setExpression(). Notice the evaluation of the expression can trigger an exception if the expression is not valid, or if the result of the expression violates type constraints specified by setTypeEquals() or setTypeAtMost(), or if the result of the expression is null and there are other variables that depend on this one. The returned value will be null if neither an expression nor a token has been set, or either has been set to null.

Overrides:

getToken in class Variable

Returns:

The token contained by this variable converted to the type of this variable, or null if there is none.

Throws:

IllegalActionException - If the expression cannot be parsed or cannot be evaluated, or if the result of evaluation violates type constraints, or if the result of evaluation is null and there are variables that depend on this one.

See Also:

Variable.setToken(String), Variable.setToken(ptolemy.data.Token)

setPort

void setPort(IOPort port)