Package org.cache2k.core.eviction

Class IdleScan

java.lang.Object

org.cache2k.core.eviction.IdleScan

All Implemented Interfaces:

NeedsClose

public class IdleScan
extends Object
implements NeedsClose

Scans for idle entries. This uses a scheduler to wakeup in regular intervals and adds additional scans in the eviction and eventually evicts the entry if it had no access since the last scan round. The duration of the scan round is controlled via Cache2kBuilder.idleScanTime(long, TimeUnit) If there is normal eviction activity in the cache, e.g. when a capacity limit is configured, only the difference of scans is executed to achieve the configured scan time to cover all cached entries. If eviction scans are more than needed for a the scan round time, the processing stops and waits for a full round duration.

Author:

Jens Wilke

Constructor Summary

Constructors

Constructor	Description
IdleScan(org.cache2k.operation.TimeReference clock, org.cache2k.operation.Scheduler scheduler, Eviction eviction, long roundTicks)

Method Summary

Modifier and Type	Method	Description
void	close(InternalCacheCloseContext closeContext)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

IdleScan

public IdleScan(org.cache2k.operation.TimeReference clock,
                org.cache2k.operation.Scheduler scheduler,
                Eviction eviction,
                long roundTicks)

Method Detail

close

public void close(InternalCacheCloseContext closeContext)

Specified by:

close in interface NeedsClose

toString

public String toString()

Overrides:

toString in class Object