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 final WriteSkewHelper.KeySpecificLogic	ALWAYS_TRUE_LOGIC

Constructor Summary

Constructors

Constructor	Description
WriteSkewHelper()

Method Summary

Modifier and Type	Method	Description
static void	addVersionRead(TxInvocationContext<?> ctx, CacheEntry<?,?> entry, Object key, VersionGenerator versionGenerator, org.infinispan.util.logging.Log log)
static IncrementableEntryVersion	incrementVersion(CacheEntry<?,?> entry, VersionGenerator versionGenerator)
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(org.infinispan.commands.tx.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 Details

ALWAYS_TRUE_LOGIC

public static final WriteSkewHelper.KeySpecificLogic ALWAYS_TRUE_LOGIC

Constructor Details

WriteSkewHelper

public WriteSkewHelper()

Method Details

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(org.infinispan.commands.tx.VersionedPrepareCommand prepareCommand,
 EntryLoader<?,?> entryLoader,
 VersionGenerator versionGenerator,
 TxInvocationContext<?> context,
 WriteSkewHelper.KeySpecificLogic ksl,
 KeyPartitioner keyPartitioner)

versionFromEntry

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

incrementVersion

public static IncrementableEntryVersion incrementVersion(CacheEntry<?,?> entry,
 VersionGenerator versionGenerator)

addVersionRead

public static void addVersionRead(TxInvocationContext<?> ctx,
 CacheEntry<?,?> entry,
 Object key,
 VersionGenerator versionGenerator,
 org.infinispan.util.logging.Log log)