Package org.infinispan.transaction.impl

Class WriteSkewHelper

java.lang.Object

org.infinispan.transaction.impl.WriteSkewHelper

public class WriteSkewHelper
extends Object

Encapsulates write skew logic in maintaining version maps, etc.

Since:

5.1

Author:

Manik Surtani

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	WriteSkewHelper.KeySpecificLogic

Field Summary

Fields

Modifier and Type	Field	Description
static WriteSkewHelper.KeySpecificLogic	ALWAYS_TRUE_LOGIC

Constructor Summary

Constructors

Constructor	Description
WriteSkewHelper()

Method Summary

Modifier and Type	Method	Description
static Map<Object,IncrementableEntryVersion>	mergeEntryVersions(Map<Object,IncrementableEntryVersion> entryVersions, Map<Object,IncrementableEntryVersion> updatedEntryVersions)
static PrepareResponse	mergeInPrepareResponse(Map<Object,IncrementableEntryVersion> versionsMap, PrepareResponse response)
static void	mergePrepareResponses(Response r, PrepareResponse aggregateResponse)
static CompletionStage<Map<Object,IncrementableEntryVersion>>	performWriteSkewCheckAndReturnNewVersions(VersionedPrepareCommand prepareCommand, EntryLoader<?,?> entryLoader, VersionGenerator versionGenerator, TxInvocationContext<?> context, WriteSkewHelper.KeySpecificLogic ksl, KeyPartitioner keyPartitioner)
static IncrementableEntryVersion	versionFromEntry(CacheEntry<?,?> entry)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ALWAYS_TRUE_LOGIC

public static final WriteSkewHelper.KeySpecificLogic ALWAYS_TRUE_LOGIC

Constructor Detail

WriteSkewHelper

public WriteSkewHelper()

Method Detail

mergePrepareResponses

public static void mergePrepareResponses(Response r,
                                         PrepareResponse aggregateResponse)

mergeInPrepareResponse

public static PrepareResponse mergeInPrepareResponse(Map<Object,IncrementableEntryVersion> versionsMap,
                                                     PrepareResponse response)

mergeEntryVersions

public static Map<Object,IncrementableEntryVersion> mergeEntryVersions(Map<Object,IncrementableEntryVersion> entryVersions,
                                                                             Map<Object,IncrementableEntryVersion> updatedEntryVersions)

performWriteSkewCheckAndReturnNewVersions

public static CompletionStage<Map<Object,IncrementableEntryVersion>> performWriteSkewCheckAndReturnNewVersions(VersionedPrepareCommand prepareCommand,
                                                                                                                     EntryLoader<?,?> entryLoader,
                                                                                                                     VersionGenerator versionGenerator,
                                                                                                                     TxInvocationContext<?> context,
                                                                                                                     WriteSkewHelper.KeySpecificLogic ksl,
                                                                                                                     KeyPartitioner keyPartitioner)

versionFromEntry

public static IncrementableEntryVersion versionFromEntry(CacheEntry<?,?> entry)