org.jboss.cache.interceptors
Class OptimisticLockingInterceptor

java.lang.Object
  org.jboss.cache.commands.AbstractVisitor
      org.jboss.cache.interceptors.base.CommandInterceptor
          org.jboss.cache.interceptors.OptimisticInterceptor
              org.jboss.cache.interceptors.OptimisticLockingInterceptor

All Implemented Interfaces:

Visitor, InterceptorMBean

public class OptimisticLockingInterceptor
extends OptimisticInterceptor

Locks nodes during transaction boundaries. Only affects prepare/commit/rollback method calls; other method calls are simply passed up the interceptor stack.

Author:

Manik Surtani (manik@jboss.org), Steve Woodcock (stevew@jofti.com)

Field Summary

Fields inherited from class org.jboss.cache.interceptors.OptimisticInterceptor

txManager, txTable

Fields inherited from class org.jboss.cache.interceptors.base.CommandInterceptor

configuration, log, trace

Constructor Summary

OptimisticLockingInterceptor()

Method Summary

Object	visitCommitCommand(InvocationContext ctx, CommitCommand command) Visits a CommitCommand.
Object	visitOptimisticPrepareCommand(InvocationContext ctx, OptimisticPrepareCommand command) Visits a OptimisticPrepareCommand.
Object	visitRollbackCommand(InvocationContext ctx, RollbackCommand command) Visits a RollbackCommand.

Methods inherited from class org.jboss.cache.interceptors.OptimisticInterceptor

getGlobalTransaction, getTransactionWorkspace, greedyGetFqns, lockAndCreateWorkspaceNode, undeleteWorkspaceNode, undeleteWorkspaceNode

Methods inherited from class org.jboss.cache.interceptors.base.CommandInterceptor

dumpStatistics, getNext, getStatisticsEnabled, handleDefault, hasNext, invokeNextInterceptor, resetStatistics, setNext, setStatisticsEnabled

Methods inherited from class org.jboss.cache.commands.AbstractVisitor

visitCollection, visitCreateNodeCommand, visitEvictFqnCommand, visitExistsNodeCommand, visitGetChildrenNamesCommand, visitGetDataMapCommand, visitGetKeysCommand, visitGetKeyValueCommand, visitGetNodeCommand, visitGravitateDataCommand, visitInvalidateCommand, visitMoveCommand, visitPrepareCommand, visitPutDataMapCommand, visitPutKeyValueCommand, visitRemoveDataCommand, visitRemoveKeyCommand, visitRemoveNodeCommand

Methods inherited from class java.lang.Object

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

Constructor Detail

OptimisticLockingInterceptor

public OptimisticLockingInterceptor()

Method Detail

visitOptimisticPrepareCommand

public Object visitOptimisticPrepareCommand(InvocationContext ctx,
                                            OptimisticPrepareCommand command)
                                     throws Throwable

Description copied from interface: Visitor

Visits a OptimisticPrepareCommand.

Specified by:

visitOptimisticPrepareCommand in interface Visitor

Overrides:

visitOptimisticPrepareCommand in class AbstractVisitor

Parameters:

ctx - invocation context

command - command to visit

Returns:

response from the visit

Throws:

Throwable - in the event of problems.

visitCommitCommand

public Object visitCommitCommand(InvocationContext ctx,
                                 CommitCommand command)
                          throws Throwable

Description copied from interface: Visitor

Visits a CommitCommand.

Specified by:

visitCommitCommand in interface Visitor

Overrides:

visitCommitCommand in class AbstractVisitor

Parameters:

ctx - invocation context

command - command to visit

Returns:

response from the visit

Throws:

Throwable - in the event of problems.

visitRollbackCommand

public Object visitRollbackCommand(InvocationContext ctx,
                                   RollbackCommand command)
                            throws Throwable

Description copied from interface: Visitor

Visits a RollbackCommand.

Specified by:

visitRollbackCommand in interface Visitor

Overrides:

visitRollbackCommand in class AbstractVisitor

Parameters:

ctx - invocation context

command - command to visit

Returns:

response from the visit

Throws:

Throwable - in the event of problems.