com.ibm.able.beans.petrinet
Class AblePetriTransition

java.lang.Object
  com.ibm.able.AbleObject
      com.ibm.able.beans.petrinet.AblePetriNode
          com.ibm.able.beans.petrinet.AblePetriTransition

All Implemented Interfaces:

AbleBean, AbleDataBufferManager, AbleEventListener, AbleEventListenerManager, AbleEventQueueManager, AbleEventQueueProcessor, AblePropertyChangeManager, AbleSerializable, java.io.Serializable

public class AblePetriTransition

extends AblePetriNode

implements java.io.Serializable

This class represents a Transition (event) in a High-Level Petri net

See Also:

Serialized Form

Field Summary

protected com.ibm.able.statistics.AbleExponentialDistribution	myDelayDistribution
protected boolean	myEnabledFlag
protected AbleExpression	myExpression
protected double	myFiringProbability
protected double	myMeanDelay
protected AblePetriNet	myPetriNet
protected java.util.Random	myRandom

Fields inherited from class com.ibm.able.beans.petrinet.AblePetriNode

myInputArcs, myOutputArcs

Fields inherited from class com.ibm.able.AbleObject

changed, chgSupport, comment, dataFlowEnabled, defaultName, destBufferConnections, eventQueue, fileName, inputBuffer, listeners, logger, name, outputBuffer, parent, properties, propertyConnectionMgr, sourceBufferConnections, state, stateChgSupport, trace

Constructor Summary

AblePetriTransition()

AblePetriTransition(java.lang.String theName)

Method Summary

boolean	getEnabled()
AbleExpression	getExpression()
java.lang.String	getExpressionText()
double	getFiringProbability()
java.lang.String	getGuardClauseText()
double	getMeanDelay()
void	init() Initialize and configure the bean.
boolean	isEnabled(double theRandomValue) Test to see if the transition could fire.
void	process() Performs the main, synchronous, standard processing function performed by this bean.
void	setExpressionText(java.lang.String text)
void	setFiringProbability(double theProbability)
void	setGuardClauseText(java.lang.String myGuardClause)
void	setMeanDelay(double theMeanDelay)
java.lang.String	toString()

Methods inherited from class com.ibm.able.beans.petrinet.AblePetriNode

addDestBufferConnection, addInputArc, addOutputArc, addSourceBufferConnection, getDestBufferConnections, getInputArcs, getName, getOutputArcs, getSourceBufferConnections, removeDestBufferConnection, removeInputArc, removeOutputArc, removeSourceBufferConnection, setInputArcs, setOutputArcs

Methods inherited from class com.ibm.able.AbleObject

addAbleEventListener, addPropertyChangeListener, addPropertyConnection, addStateChangeListener, dataChanged, firePropertyChange, flushAbleEventQueue, getAbleEventListeners, getAbleEventProcessingEnabled, getAbleEventQueueSize, getComment, getFileName, getInputBuffer, getInputBuffer, getInputBufferAsString, getInputBufferAsStringArray, getInputBufferContents, getLogger, getOutputBuffer, getOutputBuffer, getOutputBufferAsString, getOutputBufferAsStringArray, getOutputBufferContents, getParent, getProperties, getProperty, getPropertyChangeListeners, getPropertyConnectionManager, getSleepTime, getState, getTraceLogger, handleAbleEvent, hasInputBuffer, hasOutputBuffer, init, isAbleEventPostingEnabled, isAbleEventProcessingEnabled, isChanged, isConnectable, isDataFlowEnabled, isTimerEventProcessingEnabled, notifyAbleEventListeners, process, processAbleEvent, processBufferConnections, processNoEventProcessingEnabledSituation, processTimerEvent, quitAll, quitEnabledEventProcessing, removeAbleEventListener, removeAllAbleEventListeners, removeAllBufferConnections, removeAllConnections, removeAllPropertyConnections, removeProperty, removePropertyChangeListener, removePropertyConnection, removeStateChangeListener, reset, restartEnabledEventProcessing, restoreFromFile, restoreFromFile, restoreFromSerializedFile, restoreFromStream, resumeAll, resumeEnabledEventProcessing, saveToFile, saveToFile, setAbleEventProcessingEnabled, setChanged, setComment, setDataFlowEnabled, setFileName, setInputBuffer, setInputBuffer, setLogger, setName, setOutputBuffer, setOutputBuffer, setParent, setProperties, setProperty, setSleepTime, setState, setTimerEventProcessingEnabled, setTraceLogger, sourceConnectionsOK, startEnabledEventProcessing, suspendAll, suspendEnabledEventProcessing

Methods inherited from class java.lang.Object

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

Field Detail

myExpression

protected AbleExpression myExpression

myEnabledFlag

protected boolean myEnabledFlag

myFiringProbability

protected double myFiringProbability

myMeanDelay

protected double myMeanDelay

myDelayDistribution

protected com.ibm.able.statistics.AbleExponentialDistribution myDelayDistribution

myRandom

protected java.util.Random myRandom

myPetriNet

protected AblePetriNet myPetriNet

Constructor Detail

AblePetriTransition

public AblePetriTransition()
                    throws AbleException

AblePetriTransition

public AblePetriTransition(java.lang.String theName)
                    throws AbleException

Method Detail

getEnabled

public boolean getEnabled()

setMeanDelay

public void setMeanDelay(double theMeanDelay)

getMeanDelay

public double getMeanDelay()

setFiringProbability

public void setFiringProbability(double theProbability)

getFiringProbability

public double getFiringProbability()

init

public void init()
          throws AbleException

Description copied from class: AbleObject

Initialize and configure the bean. The bean's state changes to AbleState.Initiated or AbleState.Waiting. If either the AbleEventProcessing or TimerEventProcessing flags are enabled, this method calls AbleObject.startEnabledEventProcessing() to start a new thread for asynchronous or timer event processing.

An AbleProperty.ProcessingState PropertyChangeEvent is fired.

Beans overriding this method should call super.init() after any customization and before returning so that the thread is started if needed and the PropertyChangeEvent is fired.

An application using asynchronous or timer event processing should sleep until the event queue is functional by imbedding logic like this:

    anAbleObject.init();
    while (!AbleState.isReady(anAbleObject.getState())) {
        try {
            Thread.sleep(100l);
        } catch (InterruptedException e1) {
        }
    }
 

Specified by:

init in interface AbleBean

Overrides:

init in class AbleObject

Throws:

AbleException - If an error occurs.

See Also:

AbleObject.startEnabledEventProcessing()

isEnabled

public boolean isEnabled(double theRandomValue)
                  throws AbleException

Test to see if the transition could fire. the number of tokens in every input place >= multiplicity there are no inhibitor arcs currently active no guard functions return FALSE

Throws:

AbleException

process

public void process()
             throws AbleException

Description copied from class: AbleObject

Performs the main, synchronous, standard processing function performed by this bean.

This base method implementation provides tracing only.

Specified by:

process in interface AbleBean

Overrides:

process in class AbleObject

Throws:

AbleException

See Also:

AbleObject.inputBuffer, AbleObject.outputBuffer, AbleBean.process()

toString

public java.lang.String toString()

getExpression

public AbleExpression getExpression()

getExpressionText

public java.lang.String getExpressionText()

Returns:

setExpressionText

public void setExpressionText(java.lang.String text)

getGuardClauseText

public java.lang.String getGuardClauseText()

Returns:

Returns the myGuardClause.

setGuardClauseText

public void setGuardClauseText(java.lang.String myGuardClause)

Parameters:

myGuardClause - The myGuardClause to set.