org.jboss.cache.commands.tx
Class OptimisticPrepareCommand

java.lang.Object
  org.jboss.cache.commands.tx.AbstractTransactionCommand
      org.jboss.cache.commands.tx.PrepareCommand
          org.jboss.cache.commands.tx.OptimisticPrepareCommand

All Implemented Interfaces:

ReplicableCommand, VisitableCommand

public class OptimisticPrepareCommand
extends PrepareCommand

An optimistic version of PrepareCommand.

Since:

2.2

Author:

Mircea.Markus@jboss.com

Field Summary

static int

METHOD_ID

Fields inherited from class org.jboss.cache.commands.tx.PrepareCommand

localAddress, modifications, onePhaseCommit

Fields inherited from class org.jboss.cache.commands.tx.AbstractTransactionCommand

globalTransaction

Constructor Summary

OptimisticPrepareCommand()

OptimisticPrepareCommand(GlobalTransaction gtx, List<WriteCommand> modifications, org.jgroups.Address address, boolean onePhaseCommit)

Method Summary

Object	acceptVisitor(InvocationContext ctx, Visitor visitor) Accept a visitor, and return the result of accepting this visitor.
OptimisticPrepareCommand	copy() A shallow copy of all fields except collections.
int	getCommandId() Used by marshallers to convert this command into an id for streaming.
Object[]	getParameters() Used by marshallers to stream this command across a network
void	setParameters(int commandId, Object[] args) Used by the CommandsFactory to create a command from raw data read off a stream.
String	toString()

Methods inherited from class org.jboss.cache.commands.tx.PrepareCommand

containsModificationType, equals, existModifications, getLocalAddress, getModifications, getModificationsCount, hashCode, isOnePhaseCommit, removeModifications

Methods inherited from class org.jboss.cache.commands.tx.AbstractTransactionCommand

getGlobalTransaction, perform, setGlobalTransaction

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

METHOD_ID

public static final int METHOD_ID

See Also:

Constant Field Values

Constructor Detail

OptimisticPrepareCommand

public OptimisticPrepareCommand(GlobalTransaction gtx,
                                List<WriteCommand> modifications,
                                org.jgroups.Address address,
                                boolean onePhaseCommit)

OptimisticPrepareCommand

public OptimisticPrepareCommand()

Method Detail

acceptVisitor

public Object acceptVisitor(InvocationContext ctx,
                            Visitor visitor)
                     throws Throwable

Description copied from interface: VisitableCommand

Accept a visitor, and return the result of accepting this visitor.

Specified by:

acceptVisitor in interface VisitableCommand

Overrides:

acceptVisitor in class PrepareCommand

Parameters:

ctx - invocation context

visitor - visitor to accept

Returns:

arbitrary return value

Throws:

Throwable - in the event of problems

getCommandId

public int getCommandId()

Description copied from interface: ReplicableCommand

Used by marshallers to convert this command into an id for streaming.

Specified by:

getCommandId in interface ReplicableCommand

Overrides:

getCommandId in class PrepareCommand

Returns:

the method id of this command. This is compatible with pre-2.2.0 MethodCall ids.

getParameters

public Object[] getParameters()

Description copied from interface: ReplicableCommand

Used by marshallers to stream this command across a network

Specified by:

getParameters in interface ReplicableCommand

Overrides:

getParameters in class PrepareCommand

Returns:

an object array of arguments, compatible with pre-2.2.0 MethodCall args.

copy

public OptimisticPrepareCommand copy()

A shallow copy of all fields except collections.

Overrides:

copy in class PrepareCommand

Returns:

a copy of this command

setParameters

public void setParameters(int commandId,
                          Object[] args)

Description copied from interface: ReplicableCommand

Used by the CommandsFactory to create a command from raw data read off a stream.

Specified by:

setParameters in interface ReplicableCommand

Overrides:

setParameters in class PrepareCommand

Parameters:

commandId - command id to set. This is usually unused but *could* be used in the event of a command having multiple IDs, such as PutKeyValueCommand.

args - object array of args

toString

public String toString()

Overrides:

toString in class PrepareCommand