com.hazelcast.merge
Class LatestUpdateMergePolicy

java.lang.Object
  com.hazelcast.merge.LatestUpdateMergePolicy

All Implemented Interfaces:

MergePolicy

public class LatestUpdateMergePolicy
extends Object
implements MergePolicy

Field Summary

static String

NAME

Fields inherited from interface com.hazelcast.merge.MergePolicy

REMOVE_EXISTING

Constructor Summary

LatestUpdateMergePolicy()

Method Summary

Object

merge(String mapName, MapEntry mergingEntry, MapEntry existingEntry) Returns the value of the entry after the merge of entries with the same key.

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final String NAME

See Also:

Constant Field Values

Constructor Detail

LatestUpdateMergePolicy

public LatestUpdateMergePolicy()

Method Detail

merge

public Object merge(String mapName,
                    MapEntry mergingEntry,
                    MapEntry existingEntry)

Description copied from interface: MergePolicy

Returns the value of the entry after the merge of entries with the same key. Returning value can be You should consider the case where existingEntry is null.

Specified by:

merge in interface MergePolicy

Parameters:

mapName - name of the map

mergingEntry - entry merging into the destination cluster

existingEntry - existing entry in the destination cluster

Returns:

final value of the entry. If returns null then no change on the entry.