com.hazelcast.merge
Interface MergePolicy

All Known Implementing Classes:

AddNewEntryMergePolicy, HigherHitsMergePolicy, LatestUpdateMergePolicy, PassThroughMergePolicy

public interface MergePolicy

Field Summary

static Object

REMOVE_EXISTING

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.

Field Detail

REMOVE_EXISTING

static final Object REMOVE_EXISTING

Method Detail

merge

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

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.

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.