Package org.infinispan.distribution

Class LocalizedCacheTopology

java.lang.Object

org.infinispan.topology.CacheTopology

org.infinispan.distribution.LocalizedCacheTopology

public class LocalizedCacheTopology
extends CacheTopology

Extends CacheTopology with information about keys owned by the local node.

Since:

9.0

Author:

Dan Berindei

Nested Class Summary

Nested classes/interfaces inherited from class org.infinispan.topology.CacheTopology

CacheTopology.Externalizer, CacheTopology.Phase

Constructor Summary

Constructors

Constructor	Description
LocalizedCacheTopology(CacheMode cacheMode, CacheTopology cacheTopology, KeyPartitioner keyPartitioner, Address localAddress, boolean connected)

Method Summary

Modifier and Type	Method	Description
DistributionInfo	getDistribution(Object key)
DistributionInfo	getDistributionForSegment(int segmentId)	Deprecated. since 9.3 please use getSegmentDistribution(int) instead.
Address	getLocalAddress()
IntSet	getLocalReadSegments()
Set<Address>	getMembersSet()
int	getSegment(Object key)
DistributionInfo	getSegmentDistribution(int segmentId)
Collection<Address>	getWriteOwners(Object key)
Collection<Address>	getWriteOwners(Collection<?> keys)
boolean	isConnected()
boolean	isReadOwner(Object key)
boolean	isSegmentReadOwner(int segment)
boolean	isSegmentWriteOwner(int segment)
boolean	isWriteOwner(Object key)
static LocalizedCacheTopology	makeSegmentedSingletonTopology(KeyPartitioner keyPartitioner, int numSegments, Address localAddress)	Creates a new local topology that has a single address but multiple segments.
static LocalizedCacheTopology	makeSingletonTopology(CacheMode cacheMode, Address localAddress)

Methods inherited from class org.infinispan.topology.CacheTopology

equals, getActualMembers, getCurrentCH, getMembers, getMembersPersistentUUIDs, getPendingCH, getPhase, getReadConsistentHash, getRebalanceId, getTopologyId, getUnionCH, getWriteConsistentHash, hashCode, logRoutingTableInformation, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

LocalizedCacheTopology

public LocalizedCacheTopology(CacheMode cacheMode,
                              CacheTopology cacheTopology,
                              KeyPartitioner keyPartitioner,
                              Address localAddress,
                              boolean connected)

Method Detail

makeSingletonTopology

public static LocalizedCacheTopology makeSingletonTopology(CacheMode cacheMode,
                                                           Address localAddress)

Parameters:

cacheMode - Ignored, the result topology is always LOCAL

localAddress - Address of the local node

makeSegmentedSingletonTopology

public static LocalizedCacheTopology makeSegmentedSingletonTopology(KeyPartitioner keyPartitioner,
                                                                    int numSegments,
                                                                    Address localAddress)

Creates a new local topology that has a single address but multiple segments. This is useful when the data storage is segmented in some way (ie. segmented store)

Parameters:

keyPartitioner - partitioner to decide which segment a given key maps to

numSegments - how many segments there are

localAddress - the address of this node

Returns:

segmented topology

isReadOwner

public boolean isReadOwner(Object key)

Returns:

true iff key key can be read without going remote.

isSegmentReadOwner

public boolean isSegmentReadOwner(int segment)

isWriteOwner

public boolean isWriteOwner(Object key)

Returns:

true iff writing a value for key key will update it on the local node.

isSegmentWriteOwner

public boolean isSegmentWriteOwner(int segment)

getSegment

public int getSegment(Object key)

Returns:

The consistent hash segment of key key

getDistributionForSegment

@Deprecated
public DistributionInfo getDistributionForSegment(int segmentId)

Deprecated.

since 9.3 please use getSegmentDistribution(int) instead.

Returns:

Information about the ownership of segment segment, including the primary owner.

getSegmentDistribution

public DistributionInfo getSegmentDistribution(int segmentId)

getDistribution

public DistributionInfo getDistribution(Object key)

Returns:

Information about the ownership of key key, including the primary owner.

getWriteOwners

public Collection<Address> getWriteOwners(Object key)

Returns:

An unordered collection with the write owners of key.

getWriteOwners

public Collection<Address> getWriteOwners(Collection<?> keys)

Returns:

An unordered collection with the write owners of keys.

getLocalReadSegments

public IntSet getLocalReadSegments()

Returns:

The segments owned by the local node for reading.

getLocalAddress

public Address getLocalAddress()

Returns:

The address of the local node.

getMembersSet

public Set<Address> getMembersSet()

isConnected

public boolean isConnected()

Returns:

true if the local node received this topology from the coordinator, false otherwise (e.g. during preload).