ptolemy.domains.psdf.kernel
Class PSDFScheduler.SymbolicSchedule

java.lang.Object
  ptolemy.actor.sched.ScheduleElement
      ptolemy.actor.sched.Schedule
          ptolemy.domains.psdf.kernel.PSDFScheduler.SymbolicSchedule

All Implemented Interfaces:

PSDFScheduler.SymbolicScheduleElement

Enclosing class:

PSDFScheduler

private class PSDFScheduler.SymbolicSchedule
extends Schedule
implements PSDFScheduler.SymbolicScheduleElement

A schedule whose iteration count is given by an expression.

Field Summary

private java.lang.String	_expression
private ASTPtRootNode	_parseTree

Fields inherited from class ptolemy.actor.sched.Schedule

_schedule

Fields inherited from class ptolemy.actor.sched.ScheduleElement

_parent

Constructor Summary

PSDFScheduler.SymbolicSchedule(java.lang.String expression)
Construct a symbolic schedule with 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 symbolic schedule.
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() Return a string representation of this symbolic schedule.

Methods inherited from class ptolemy.actor.sched.Schedule

actorIterator, add, add, firingIterator, get, iterator, remove, size

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.SymbolicSchedule

public PSDFScheduler.SymbolicSchedule(java.lang.String expression)

Construct a symbolic schedule with the given expression. This schedule is assumed to fire the number of times determined by evaluating the given expression.

Parameters:

expression - A string expression representing the number of times to execute the schedule.

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 symbolic schedule.

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()

Return a string representation of this symbolic schedule.

Overrides:

toString in class Schedule

Returns:

The string representation.