Package de.fraunhofer.iese.mydata.pmp.cache

Class TimerCache

java.lang.Object

de.fraunhofer.iese.mydata.pmp.cache.TimerCache

All Implemented Interfaces:

ITimerCache

public class TimerCache
extends Object
implements ITimerCache

Keeps a copy of a timer list

Author:

kelbert

Constructor Summary

Constructors

Constructor	Description
TimerCache()
TimerCache(java.util.function.Supplier<java.time.Instant> instantSupplier, String cachePath, java.time.Duration maxCacheAge)

Method Summary

Modifier and Type	Method	Description
Optional<Set<de.fraunhofer.iese.mydata.timer.Timer>>	getTimers()
void	invalidate()	invalidates the cache
boolean	isValid()
boolean	updateCache(Set<de.fraunhofer.iese.mydata.timer.Timer> policies)	updates cache content and refreshes validation time
void	validate()	refreshes validation time of the cache without changing its contents

Methods inherited from class java.lang.Object

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

Constructor Detail

TimerCache

public TimerCache()

TimerCache

public TimerCache(java.util.function.Supplier<java.time.Instant> instantSupplier,
                  String cachePath,
                  @Nullable
                  java.time.Duration maxCacheAge)

Method Detail

getTimers

public Optional<Set<de.fraunhofer.iese.mydata.timer.Timer>> getTimers()

Specified by:

getTimers in interface ITimerCache

Returns:

the cached timers if cache is valid or else empty Optional

isValid

public boolean isValid()

Specified by:

isValid in interface ITimerCache

Returns:

whether the cache is valid

invalidate

public void invalidate()

Description copied from interface: ITimerCache

invalidates the cache

Specified by:

invalidate in interface ITimerCache

validate

public void validate()

Description copied from interface: ITimerCache

refreshes validation time of the cache without changing its contents

Specified by:

validate in interface ITimerCache

updateCache

public boolean updateCache(Set<de.fraunhofer.iese.mydata.timer.Timer> policies)

Description copied from interface: ITimerCache

updates cache content and refreshes validation time

Specified by:

updateCache in interface ITimerCache

Returns:

whether updating the cache succeeded