ptolemy.domains.psdf.kernel
Class PSDFScheduler.SymbolicFiring

java.lang.Object
  ptolemy.actor.sched.ScheduleElement
      ptolemy.actor.sched.Firing
          ptolemy.domains.psdf.kernel.PSDFScheduler.SymbolicFiring

All Implemented Interfaces:

PSDFScheduler.SymbolicScheduleElement

Enclosing class:

PSDFScheduler

private class PSDFScheduler.SymbolicFiring
extends Firing
implements PSDFScheduler.SymbolicScheduleElement

An actor firing with an iteration count that is determined by a symbolic expression.

Field Summary

private java.lang.String	_expression
private ASTPtRootNode	_parseTree

Fields inherited from class ptolemy.actor.sched.ScheduleElement

_parent

Constructor Summary

PSDFScheduler.SymbolicFiring(Actor actor, java.lang.String expression)
Construct a firing with the given actor and the given expression.

Method Summary

java.lang.String	expression() Return the most recent expression that was used to set the iteration count of this symbolic firing.
int	getIterationCount() Return the current iteration count of this firing.
ASTPtRootNode	parseTree() Get the parse tree of the iteration expression.
void	setIterationCount(java.lang.String expression) Set the expression associated with the iteration count.
java.lang.String	toString() Output a string representation of this symbolic firing.

Methods inherited from class ptolemy.actor.sched.Firing

actorIterator, firingIterator, getActor, setActor

Methods inherited from class ptolemy.actor.sched.ScheduleElement

_getVersion, _incrementVersion, setIterationCount, setParent

Methods inherited from class java.lang.Object

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

Field Detail

_expression

private java.lang.String _expression

_parseTree

private ASTPtRootNode _parseTree

Constructor Detail

PSDFScheduler.SymbolicFiring

public PSDFScheduler.SymbolicFiring(Actor actor,
                                    java.lang.String expression)

Construct a firing with the given actor and the given expression. The given actor is assumed to fire the number of times determined by evaluating the given expression.

Parameters:

actor - The actor in the firing.

expression - A string expression representing the number of times to fire the actor.

Method Detail

expression

public java.lang.String expression()

Return the most recent expression that was used to set the iteration count of this symbolic firing.

Specified by:

expression in interface PSDFScheduler.SymbolicScheduleElement

Returns:

The most recent expression.

See Also:

setIterationCount(String).

getIterationCount

public int getIterationCount()

Return the current iteration count of this firing.

Overrides:

getIterationCount in class ScheduleElement

Returns:

The iteration count for this schedule.

See Also:

ScheduleElement.setIterationCount(int)

parseTree

public ASTPtRootNode parseTree()

Get the parse tree of the iteration expression.

Specified by:

parseTree in interface PSDFScheduler.SymbolicScheduleElement

Returns:

The parse tree.

setIterationCount

public void setIterationCount(java.lang.String expression)

Set the expression associated with the iteration count. The expression will probably be something like "a2::in::tokenConsumptionRate/gcd(a2::in::tokenConsumptionRate, a::out::tokenProductionRate)."

Specified by:

setIterationCount in interface PSDFScheduler.SymbolicScheduleElement

Parameters:

expression - The expression to be associated with the iteration count.

toString

public java.lang.String toString()

Output a string representation of this symbolic firing.

Overrides:

toString in class Firing