Package com.tangosol.net.partition

Interface PartitionAwareBackingMap

All Superinterfaces:

Map

All Known Implementing Classes:

ObservableSplittingBackingCache, ObservableSplittingBackingCache.CapacityAwareMap, ObservableSplittingBackingMap, PartitionSplittingBackingMap, ReadWriteSplittingBackingMap

public interface PartitionAwareBackingMap
extends Map

In a partitioned configuration, backing maps that implement the PartitionAwareBackingMap interface are able to react to the partition life-cycle (a partition showing up on a node, or moving away from a node) and manage data more efficiently as a result.

Since:

Coherence 3.5

Author:

cp 2008-11-20

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Method Summary

Modifier and Type	Method	Description
void	createPartition(int nPid)	Add a partition to the PartitionAwareBackingMap.
void	destroyPartition(int nPid)	Remove a partition from the PartitionAwareBackingMap.
BackingMapManager	getBackingMapManager()	Obtain the BackingMapManager that this PartitionAwareBackingMap uses to instantiate and release backing maps.
String	getName()	Determine the name of the cache for which this PartitionAwareBackingMap exists.
Map	getPartitionMap(int nPid)	Obtain a Map view for the data in a specific partition.
Map	getPartitionMap(PartitionSet partitions)	Obtain a Map view for the data in a specific set of partitions.

Methods inherited from interface java.util.Map

clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Method Details

getBackingMapManager

BackingMapManager getBackingMapManager()

Obtain the BackingMapManager that this PartitionAwareBackingMap uses to instantiate and release backing maps.

Returns:

the BackingMapManager

getName

String getName()

Determine the name of the cache for which this PartitionAwareBackingMap exists.

Returns:

the cache name

createPartition

void createPartition(int nPid)

Add a partition to the PartitionAwareBackingMap.

Parameters:

nPid - the partition id that the PartitionAwareBackingMap will be responsible for, starting at this instant

destroyPartition

void destroyPartition(int nPid)

Remove a partition from the PartitionAwareBackingMap.

Parameters:

nPid - the partition id that the PartitionAwareBackingMap will no longer be responsible for, starting at this instant

getPartitionMap

Map getPartitionMap(int nPid)

Obtain a Map view for the data in a specific partition.

Parameters:

nPid - the partition ID

Returns:

the backing map (or null if that partition is not owned)

getPartitionMap

Map getPartitionMap(PartitionSet partitions)

Obtain a Map view for the data in a specific set of partitions.

Parameters:

partitions - the masking PartitionSet

Returns:

a read-only view into a subset of backing maps