org.infinispan.interceptors.distribution

Class NonTxDistributionInterceptor

java.lang.Object

org.infinispan.commands.AbstractVisitor

org.infinispan.interceptors.base.CommandInterceptor

org.infinispan.interceptors.base.BaseRpcInterceptor

org.infinispan.interceptors.ClusteringInterceptor

org.infinispan.interceptors.distribution.BaseDistributionInterceptor

org.infinispan.interceptors.distribution.NonTxDistributionInterceptor

All Implemented Interfaces:

Visitor

public class NonTxDistributionInterceptor
extends BaseDistributionInterceptor

Non-transactional interceptor used by distributed caches that support concurrent writes. It is implemented based on lock forwarding. E.g. - 'k' is written on node A, owners(k)={B,C} - A forwards the given command to B - B acquires a lock on 'k' then it forwards it to the remaining owners: C - C applies the change and returns to B (no lock acquisition is needed) - B applies the result as well, releases the lock and returns the result of the operation to A.

Note that even though this introduces an additional RPC (the forwarding), it behaves very well in conjunction with consistent-hash aware hotrod clients which connect directly to the lock owner.

Since:

5.2

Author:

Mircea Markus

Field Summary

Fields inherited from class org.infinispan.interceptors.distribution.BaseDistributionInterceptor

cdl, dm, rvrl

Fields inherited from class org.infinispan.interceptors.ClusteringInterceptor

cf, dataContainer, entryFactory, isL1Enabled, lockManager, needReliableReturnValues, stateTransferManager

Fields inherited from class org.infinispan.interceptors.base.BaseRpcInterceptor

defaultSynchronous, rpcManager

Fields inherited from class org.infinispan.interceptors.base.CommandInterceptor

cacheConfiguration

Constructor Summary

Constructors

Constructor and Description
NonTxDistributionInterceptor()

Method Summary

Modifier and Type	Method and Description
protected void	remoteGetBeforeWrite(InvocationContext ctx, WriteCommand command, org.infinispan.interceptors.distribution.BaseDistributionInterceptor.RecipientGenerator keygen)
Object	visitClearCommand(InvocationContext ctx, ClearCommand command) Don't forward in the case of clear commands, just acquire local locks and broadcast.
Object	visitGetKeyValueCommand(InvocationContext ctx, GetKeyValueCommand command)
Object	visitPutKeyValueCommand(InvocationContext ctx, PutKeyValueCommand command)
Object	visitPutMapCommand(InvocationContext ctx, PutMapCommand command)
Object	visitRemoveCommand(InvocationContext ctx, RemoveCommand command)
Object	visitReplaceCommand(InvocationContext ctx, ReplaceCommand command)

Methods inherited from class org.infinispan.interceptors.distribution.BaseDistributionInterceptor

getLog, handleNonTxWriteCommand, injectDependencies, retrieveFromRemoteSource

Methods inherited from class org.infinispan.interceptors.ClusteringInterceptor

configure, ignorePreviousValueOnBackup, injectDependencies, isNeedReliableReturnValues, isValueAvailableLocally, needsRemoteGet

Methods inherited from class org.infinispan.interceptors.base.BaseRpcInterceptor

getIgnoreExtraResponseFilter, getSelfDeliverFilter, init, inject, isLocalModeForced, isSyncCommitPhase, isSynchronous, shouldInvokeRemoteTxCommand, shouldTotalOrderRollbackBeInvokedRemotely, totalOrderAnycastPrepare, totalOrderBroadcastPrepare, totalOrderTxCommit, totalOrderTxRollback, transactionRemotelyPrepared

Methods inherited from class org.infinispan.interceptors.base.CommandInterceptor

getLockAcquisitionTimeout, getNext, handleDefault, hasNext, hasSkipLocking, injectConfiguration, invokeNextInterceptor, setNext

Methods inherited from class org.infinispan.commands.AbstractVisitor

visitApplyDeltaCommand, visitCollection, visitCommitCommand, visitDistributedExecuteCommand, visitEntrySetCommand, visitEvictCommand, visitInvalidateCommand, visitInvalidateL1Command, visitKeySetCommand, visitLockControlCommand, visitPrepareCommand, visitRollbackCommand, visitSizeCommand, visitUnknownCommand, visitValuesCommand

Methods inherited from class java.lang.Object

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

Constructor Detail

NonTxDistributionInterceptor

public NonTxDistributionInterceptor()

Method Detail

visitGetKeyValueCommand

public Object visitGetKeyValueCommand(InvocationContext ctx,
                                      GetKeyValueCommand command)
                               throws Throwable

Specified by:

visitGetKeyValueCommand in interface Visitor

Overrides:

visitGetKeyValueCommand in class AbstractVisitor

Throws:

Throwable

visitPutKeyValueCommand

public Object visitPutKeyValueCommand(InvocationContext ctx,
                                      PutKeyValueCommand command)
                               throws Throwable

Specified by:

visitPutKeyValueCommand in interface Visitor

Overrides:

visitPutKeyValueCommand in class AbstractVisitor

Throws:

Throwable

visitPutMapCommand

public Object visitPutMapCommand(InvocationContext ctx,
                                 PutMapCommand command)
                          throws Throwable

Specified by:

visitPutMapCommand in interface Visitor

Overrides:

visitPutMapCommand in class AbstractVisitor

Throws:

Throwable

visitRemoveCommand

public Object visitRemoveCommand(InvocationContext ctx,
                                 RemoveCommand command)
                          throws Throwable

Specified by:

visitRemoveCommand in interface Visitor

Overrides:

visitRemoveCommand in class AbstractVisitor

Throws:

Throwable

visitReplaceCommand

public Object visitReplaceCommand(InvocationContext ctx,
                                  ReplaceCommand command)
                           throws Throwable

Specified by:

visitReplaceCommand in interface Visitor

Overrides:

visitReplaceCommand in class AbstractVisitor

Throws:

Throwable

visitClearCommand

public Object visitClearCommand(InvocationContext ctx,
                                ClearCommand command)
                         throws Throwable

Don't forward in the case of clear commands, just acquire local locks and broadcast.

Specified by:

visitClearCommand in interface Visitor

Overrides:

visitClearCommand in class AbstractVisitor

Throws:

Throwable

remoteGetBeforeWrite

protected void remoteGetBeforeWrite(InvocationContext ctx,
                                    WriteCommand command,
                                    org.infinispan.interceptors.distribution.BaseDistributionInterceptor.RecipientGenerator keygen)
                             throws Throwable

Specified by:

remoteGetBeforeWrite in class BaseDistributionInterceptor

Throws:

Throwable