gov.nasa.arc.brahms.vm.rt
Class VMAssignmentCtx

java.lang.Object
  gov.nasa.arc.brahms.common.rt.BrahmsObjectCtx
      gov.nasa.arc.brahms.common.rt.AssignmentCtx
          gov.nasa.arc.brahms.vm.rt.VMAssignmentCtx

All Implemented Interfaces:

IAssignmentCtx, IBrahmsObjectCtx, IRuntimeConstants, gov.nasa.arc.brahms.vm.events.IDiscreteEventData, gov.nasa.arc.brahms.vm.events.IDiscreteEventHandler, java.io.Serializable

public class VMAssignmentCtx
extends AssignmentCtx
implements gov.nasa.arc.brahms.vm.events.IDiscreteEventData, gov.nasa.arc.brahms.vm.events.IDiscreteEventHandler

The VMAssignmentCtx is an AssignmentCtx with specializations for use in the virtual machine. An AssignmentCtx is the context for an executed assignment operation. It defines the assignment operation that was executed and what frame executed the operation

Version:

$Revision: 1.1 $ $Date: 2009/11/23 20:46:18 $ $Author: rnado $

Author:

Bob Nado

See Also:

AssignmentCtx, Serialized Form

Field Summary

Fields inherited from interface gov.nasa.arc.brahms.common.rt.IRuntimeConstants

ABORTED, ACTIVE, ACTIVITY, AVAILABLE, COMPLETED, CONSEQUENCE, DETECTABLE, ENDED, ENGINE, EXTERNAL_AGENT, FROM, IMPASSED, INITIAL, INTERRUPTED, JAVA_PROPERTY, sABORTED, sACTIVE, sAVAILABLE, sCOMPLETED, sENDED, sIMPASSED, sINTERRUPTED, sUNAVAILABLE, TO, TRANSFER, UNAVAILABLE

Constructor Summary

VMAssignmentCtx(Assignment assignment)
Constructor, creates a new assignment context for the specified assignment operation.

Method Summary

boolean	handleDiscreteEvent(gov.nasa.arc.brahms.vm.events.DiscreteEvent evt) Process the specified discrete event.
boolean	handleDiscreteEvent(gov.nasa.arc.brahms.vm.events.DiscreteEvent evt, gov.nasa.arc.brahms.vm.events.IDiscreteEventHandlerFactory ehf) Handles the specified discrete event by selecting the appropriate event handler from the specified event handler factory.
protected void	onExecute(gov.nasa.arc.brahms.vm.events.DiscreteEvent evt) Executes the assignment operation

Methods inherited from class gov.nasa.arc.brahms.common.rt.AssignmentCtx

getParent, setParent, toString

Methods inherited from class gov.nasa.arc.brahms.common.rt.BrahmsObjectCtx

addNote, getContextFor, getEndTime, getID, getNote, getNotes, getStartTime, removeNote, setContextFor, setEndTime, setID, setStartTime

Methods inherited from class java.lang.Object

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

Methods inherited from interface gov.nasa.arc.brahms.common.rt.IBrahmsObjectCtx

addNote, getContextFor, getEndTime, getID, getNote, getNotes, getStartTime, removeNote, setEndTime, setID, setStartTime

Constructor Detail

VMAssignmentCtx

public VMAssignmentCtx(Assignment assignment)

Constructor, creates a new assignment context for the specified assignment operation.

Parameters:

assignment - the assignment operation for which this context is the context

Method Detail

handleDiscreteEvent

public boolean handleDiscreteEvent(gov.nasa.arc.brahms.vm.events.DiscreteEvent evt,
                                   gov.nasa.arc.brahms.vm.events.IDiscreteEventHandlerFactory ehf)

Handles the specified discrete event by selecting the appropriate event handler from the specified event handler factory. The specified event contains as its data the object implementing this interface. The following should be the case: evt.getData() == this

Specified by:

handleDiscreteEvent in interface gov.nasa.arc.brahms.vm.events.IDiscreteEventData

Parameters:

evt - the DiscreteEvent to be handled

ehf - the EventHandlerFactory containing handlers from which this DiscreteEventData selects the appropriate handler

Returns:

boolean true if the event could be processed, false if not

handleDiscreteEvent

public boolean handleDiscreteEvent(gov.nasa.arc.brahms.vm.events.DiscreteEvent evt)

Process the specified discrete event.

Specified by:

handleDiscreteEvent in interface gov.nasa.arc.brahms.vm.events.IDiscreteEventHandler

Parameters:

evt - the DiscreteEvent to be processed.

Returns:

boolean true if the event could be processed, false if not

onExecute

protected void onExecute(gov.nasa.arc.brahms.vm.events.DiscreteEvent evt)

Executes the assignment operation

Parameters:

evt - the DiscreteEvent that initiated the assignment operation