org.daisy.common.priority

Class PrioritizableRunnable<T>

java.lang.Object

org.daisy.common.priority.PrioritizableRunnable<T>

All Implemented Interfaces:

Runnable, Prioritizable<T>

Direct Known Subclasses:

ForwardingPrioritableRunnable

public class PrioritizableRunnable<T>
extends Object
implements Prioritizable<T>, Runnable

A runnable that holds an associated priority. This priority may be computed somehow but it must allow to force it.
This object also has a timestamp and relative waiting time.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	dirty Indicates if the relative timestamp has been recently updated.
protected double	relativeWaitingTime realtive waiting time within a given context.

Constructor Summary

Constructors

Constructor and Description
PrioritizableRunnable(Runnable runnable, PriorityCalculator<T> calculator) Creats the object and timestamps it.

Method Summary

Modifier and Type	Method and Description
double	getPriority() Returns the priority.
PriorityCalculator<T>	getPriorityCalculator()
double	getRelativeWaitingTime() Gets the relative waiting time
long	getTimestamp() Returns the timestamp.
boolean	isDirty()
void	markDirty(boolean dirty) marks this runnable as dirty so the priority should be recalculated if necessary.
T	prioritySource()
void	run()
void	setRelativeWaitingTime(com.google.common.base.Function<Long,Double> normalizer) Uses the normaliser to set the relative waiting time of this runnable and marks it as dirty

Methods inherited from class java.lang.Object

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

Field Detail

dirty

protected boolean dirty

Indicates if the relative timestamp has been recently updated.

relativeWaitingTime

protected double relativeWaitingTime

realtive waiting time within a given context.

Constructor Detail

PrioritizableRunnable

public PrioritizableRunnable(Runnable runnable,
                             PriorityCalculator<T> calculator)

Creats the object and timestamps it.

See Also:

Object#PrioritizedRunnable()

Method Detail

run

public void run()

Specified by:

run in interface Runnable

getPriorityCalculator

public PriorityCalculator<T> getPriorityCalculator()

getTimestamp

public long getTimestamp()

Description copied from interface: Prioritizable

Returns the timestamp.

Specified by:

getTimestamp in interface Prioritizable<T>

Returns:

the timestamp

getRelativeWaitingTime

public double getRelativeWaitingTime()

Gets the relative waiting time

Specified by:

getRelativeWaitingTime in interface Prioritizable<T>

Returns:

the relativeWaitingTime

markDirty

public void markDirty(boolean dirty)

marks this runnable as dirty so the priority should be recalculated if necessary.

isDirty

public boolean isDirty()

setRelativeWaitingTime

public void setRelativeWaitingTime(com.google.common.base.Function<Long,Double> normalizer)

Uses the normaliser to set the relative waiting time of this runnable and marks it as dirty

getPriority

public double getPriority()

Description copied from interface: Prioritizable

Returns the priority.

Specified by:

getPriority in interface Prioritizable<T>

prioritySource

public T prioritySource()

Specified by:

prioritySource in interface Prioritizable<T>