com.hazelcast.spi.hotrestart.impl.gc.tracker

Class TrackerMapBase

java.lang.Object

com.hazelcast.spi.hotrestart.impl.gc.tracker.TrackerMapBase

All Implemented Interfaces:

com.hazelcast.nio.Disposable, TrackerMap

Direct Known Subclasses:

TrackerMapOffHeap, TrackerMapOnHeap

public abstract class TrackerMapBase
extends Object
implements TrackerMap

Abstract base class common to both tracker map implementations. Manages the liveValues and liveTombstones metrics.

Nested Class Summary

Nested classes/interfaces inherited from interface com.hazelcast.spi.hotrestart.impl.gc.tracker.TrackerMap

TrackerMap.Cursor

Field Summary

Fields

Modifier and Type	Field and Description
com.hazelcast.internal.util.counters.SwCounter	liveTombstones The global count of live tombstones in the store.
com.hazelcast.internal.util.counters.SwCounter	liveValues The global count of live values in the store.

Constructor Summary

Constructors

Constructor and Description
TrackerMapBase()

Method Summary

Modifier and Type	Method and Description
void	removeIfDead(KeyHandle kh, Tracker tr) Removes the entry for tr if tr represents a dead record.
void	removeLiveTombstone(KeyHandle kh) Removes the entry for kh assuming that it maps to a tracker representing a live tombstone.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.hazelcast.spi.hotrestart.impl.gc.tracker.TrackerMap

cursor, get, putIfAbsent, size

Methods inherited from interface com.hazelcast.nio.Disposable

dispose

Field Detail

liveValues

public final com.hazelcast.internal.util.counters.SwCounter liveValues

The global count of live values in the store. Increases as records are added, decreases as they are retired or replaced with tombstones

liveTombstones

public final com.hazelcast.internal.util.counters.SwCounter liveTombstones

The global count of live tombstones in the store. Increases as records are added, decreases as they are retired. Can also be decreased if there are no other records with the same key handle that it protects from resurrection.

Constructor Detail

TrackerMapBase

public TrackerMapBase()

Method Detail

removeLiveTombstone

public void removeLiveTombstone(KeyHandle kh)

Description copied from interface: TrackerMap

Removes the entry for kh assuming that it maps to a tracker representing a live tombstone. This assumption is not verified.

Specified by:

removeLiveTombstone in interface TrackerMap

removeIfDead

public void removeIfDead(KeyHandle kh,
                         Tracker tr)

Description copied from interface: TrackerMap

Removes the entry for tr if tr represents a dead record. tr must be the tracker mapped under kh, but this is not verified.

Specified by:

removeIfDead in interface TrackerMap

toString

public String toString()

Overrides:

toString in class Object