org.apache.ignite.internal.processors.affinity

Interface HistoryAffinityAssignment

All Superinterfaces:

AffinityAssignment

All Known Implementing Classes:

HistoryAffinityAssignmentImpl, HistoryAffinityAssignmentShallowCopy

public interface HistoryAffinityAssignment
extends AffinityAssignment

Interface for historical 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

Method Summary

Modifier and Type	Method and Description
HistoryAffinityAssignment	origin() In case this instance is lightweight wrapper of another instance, this method should return reference to an original one.
boolean	requiresHistoryCleanup() Should return true if instance is "heavy" and should be taken into account during history size management.

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

assignment, assignments2ids, backupPartitions, get, getIds, idealAssignment, nodes, partitionPrimariesDifferentToIdeal, primaryPartitionNodes, primaryPartitions, topologyVersion

Method Detail

requiresHistoryCleanup

boolean requiresHistoryCleanup()

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

Returns:

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

origin

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.

Returns:

Original instance of this if not applicable.