org.apache.ignite.internal.processors.affinity

Class HistoryAffinityAssignmentImpl

java.lang.Object

org.apache.ignite.internal.processors.affinity.HistoryAffinityAssignmentImpl

All Implemented Interfaces:

AffinityAssignment, HistoryAffinityAssignment

public class HistoryAffinityAssignmentImpl
extends Object
implements HistoryAffinityAssignment

Heap-space optimized version of calculated affinity assignment.

Field Summary

Fields inherited from interface org.apache.ignite.internal.processors.affinity.AffinityAssignment

DFLT_AFFINITY_BACKUPS_THRESHOLD, IGNITE_AFFINITY_BACKUPS_THRESHOLD, IGNITE_DISABLE_AFFINITY_MEMORY_OPTIMIZATION

Constructor Summary

Constructors

Constructor and Description
HistoryAffinityAssignmentImpl(AffinityAssignment assign, int backups)

Method Summary

Modifier and Type	Method and Description
List<List<ClusterNode>>	assignment()
Set<Integer>	backupPartitions(UUID nodeId) Get backup partitions for specified node ID.
boolean	equals(Object o)
List<ClusterNode>	get(int part) Get affinity nodes for partition.
Collection<UUID>	getIds(int part) Get affinity node IDs for partition.
int	hashCode()
List<List<ClusterNode>>	idealAssignment()
Set<ClusterNode>	nodes()
HistoryAffinityAssignment	origin() In case this instance is lightweight wrapper of another instance, this method should return reference to an original one.
Set<Integer>	partitionPrimariesDifferentToIdeal()
Set<ClusterNode>	primaryPartitionNodes()
Set<Integer>	primaryPartitions(UUID nodeId) Get primary partitions for specified node ID.
boolean	requiresHistoryCleanup() Should return true if instance is "heavy" and should be taken into account during history size management.
AffinityTopologyVersion	topologyVersion()
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ignite.internal.processors.affinity.AffinityAssignment

assignments2ids

Constructor Detail

HistoryAffinityAssignmentImpl

public HistoryAffinityAssignmentImpl(AffinityAssignment assign,
                                     int backups)

Parameters:

assign - Assignment.

backups - Backups.

Method Detail

idealAssignment

public List<List<ClusterNode>> idealAssignment()

Specified by:

idealAssignment in interface AffinityAssignment

Returns:

Affinity assignment computed by affinity function.

assignment

public List<List<ClusterNode>> assignment()

Specified by:

assignment in interface AffinityAssignment

Returns:

Affinity assignment.

topologyVersion

public AffinityTopologyVersion topologyVersion()

Specified by:

topologyVersion in interface AffinityAssignment

Returns:

Topology version.

get

public List<ClusterNode> get(int part)

Get affinity nodes for partition.

Specified by:

get in interface AffinityAssignment

Parameters:

part - Partition.

Returns:

Affinity nodes.

getIds

public Collection<UUID> getIds(int part)

Get affinity node IDs for partition.

Specified by:

getIds in interface AffinityAssignment

Parameters:

part - Partition.

Returns:

Affinity nodes IDs.

nodes

public Set<ClusterNode> nodes()

Specified by:

nodes in interface AffinityAssignment

Returns:

Nodes having primary and backup assignments.

primaryPartitionNodes

public Set<ClusterNode> primaryPartitionNodes()

Specified by:

primaryPartitionNodes in interface AffinityAssignment

Returns:

Nodes having primary partitions assignments.

primaryPartitions

public Set<Integer> primaryPartitions(UUID nodeId)

Get primary partitions for specified node ID.

Specified by:

primaryPartitions in interface AffinityAssignment

Parameters:

nodeId - Node ID to get primary partitions for.

Returns:

Primary partitions for specified node ID.

backupPartitions

public Set<Integer> backupPartitions(UUID nodeId)

Get backup partitions for specified node ID.

Specified by:

backupPartitions in interface AffinityAssignment

Parameters:

nodeId - Node ID to get backup partitions for.

Returns:

Backup partitions for specified node ID.

partitionPrimariesDifferentToIdeal

public Set<Integer> partitionPrimariesDifferentToIdeal()

Specified by:

partitionPrimariesDifferentToIdeal in interface AffinityAssignment

Returns:

Set of partitions which primary is different to primary in ideal assignment.

requiresHistoryCleanup

public boolean requiresHistoryCleanup()

Should return true if instance is "heavy" and should be taken into account during history size management.

Specified by:

requiresHistoryCleanup in interface HistoryAffinityAssignment

Returns:

true if adding this instance to history should trigger size check and possible cleanup.

origin

public HistoryAffinityAssignment origin()

In case this instance is lightweight wrapper of another instance, this method should return reference to an original one. Otherwise, it should return this reference.

Specified by:

origin in interface HistoryAffinityAssignment

Returns:

Original instance of this if not applicable.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object