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

Class TrackerMapOffHeap

java.lang.Object

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

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

All Implemented Interfaces:

com.hazelcast.nio.Disposable, TrackerMap

public final class TrackerMapOffHeap
extends TrackerMapBase

Off-heap implementation of record tracker map.

Nested Class Summary

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

TrackerMap.Cursor

Field Summary

Fields inherited from class com.hazelcast.spi.hotrestart.impl.gc.tracker.TrackerMapBase

liveTombstones, liveValues

Constructor Summary

Constructors

Constructor and Description
TrackerMapOffHeap(com.hazelcast.internal.memory.MemoryManager memMgr, com.hazelcast.internal.memory.MemoryAllocator auxMalloc)

Method Summary

Modifier and Type	Method and Description
TrackerMap.Cursor	cursor()
void	dispose()
Tracker	get(KeyHandle kh) Returns the tracker mapped by the supplied KeyHandle, if any; otherwise returns null.
Tracker	putIfAbsent(KeyHandle kh, long chunkSeq, boolean isTombstone) If there is no current mapping for kh, establishes a mapping from kh to a tracker defined by (chunkSeq, isTombstone) and returns null.
long	size()

Methods inherited from class com.hazelcast.spi.hotrestart.impl.gc.tracker.TrackerMapBase

removeIfDead, removeLiveTombstone, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

TrackerMapOffHeap

public TrackerMapOffHeap(com.hazelcast.internal.memory.MemoryManager memMgr,
                         com.hazelcast.internal.memory.MemoryAllocator auxMalloc)

Method Detail

putIfAbsent

public Tracker putIfAbsent(KeyHandle kh,
                           long chunkSeq,
                           boolean isTombstone)

Description copied from interface: TrackerMap

If there is no current mapping for kh, establishes a mapping from kh to a tracker defined by (chunkSeq, isTombstone) and returns null. If a mapping already exists, returns the existing tracker without updating it.

get

public Tracker get(KeyHandle kh)

Description copied from interface: TrackerMap

Returns the tracker mapped by the supplied KeyHandle, if any; otherwise returns null. Warning! The returned instance is valid only up to the next operation on this map, including another get. The caller should generally not retain it.

size

public long size()

Returns:

the number of entries in this map.

cursor

public TrackerMap.Cursor cursor()

dispose

public void dispose()