Package org.infinispan.server.hotrod.command.tx

Class ForwardRollbackCommand

java.lang.Object

org.infinispan.commands.remote.BaseRpcCommand

org.infinispan.server.hotrod.command.tx.ForwardRollbackCommand

All Implemented Interfaces:

org.infinispan.commands.remote.CacheRpcCommand, org.infinispan.commands.ReplicableCommand

public class ForwardRollbackCommand
extends org.infinispan.commands.remote.BaseRpcCommand

A CacheRpcCommand implementation to forward the rollback request from a client to the member that run the transaction.

Since:

9.1

Author:

Pedro Ruivo

Field Summary

Fields inherited from class org.infinispan.commands.remote.BaseRpcCommand

cacheName

Constructor Summary

Constructors

Constructor	Description
ForwardRollbackCommand(ByteString cacheName)
ForwardRollbackCommand(ByteString cacheName, XidImpl xid, long timeout)

Method Summary

Modifier and Type	Method	Description
boolean	canBlock()	If true, the command is processed asynchronously in a thread provided by an Infinispan thread pool.
byte	getCommandId()	Used by marshallers to convert this command into an id for streaming.
void	inject(EmbeddedCacheManager cacheManager)
Object	invoke()	Invoke the command synchronously.
boolean	isReturnValueExpected()	If true, a return value will be provided when performed remotely.
void	readFrom(ObjectInput input)	Reads this instance from the stream written by ReplicableCommand.writeTo(ObjectOutput).
String	toString()
void	writeTo(ObjectOutput output)	Writes this instance to the ObjectOutput.

Methods inherited from class org.infinispan.commands.remote.BaseRpcCommand

getCacheName, getOrigin, setOrigin

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.infinispan.commands.ReplicableCommand

invokeAsync, isSuccessful, perform

Constructor Detail

ForwardRollbackCommand

public ForwardRollbackCommand(ByteString cacheName)

ForwardRollbackCommand

public ForwardRollbackCommand(ByteString cacheName,
                              XidImpl xid,
                              long timeout)

Method Detail

getCommandId

public byte getCommandId()

Description copied from interface: org.infinispan.commands.ReplicableCommand

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

Returns:

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

isReturnValueExpected

public boolean isReturnValueExpected()

Description copied from interface: org.infinispan.commands.ReplicableCommand

If true, a return value will be provided when performed remotely. Otherwise, a remote ResponseGenerator may choose to simply return null to save on marshalling costs.

Returns:

true or false

canBlock

public boolean canBlock()

Description copied from interface: org.infinispan.commands.ReplicableCommand

If true, the command is processed asynchronously in a thread provided by an Infinispan thread pool. Otherwise, the command is processed directly in the JGroups thread.

This feature allows to avoid keep a JGroups thread busy that can originate discard of messages and retransmissions. So, the commands that can block (waiting for some state, acquiring locks, etc.) should return true.

Specified by:

canBlock in interface org.infinispan.commands.ReplicableCommand

Overrides:

canBlock in class org.infinispan.commands.remote.BaseRpcCommand

Returns:

true if the command can block/wait, false otherwise

writeTo

public void writeTo(ObjectOutput output)
             throws IOException

Description copied from interface: org.infinispan.commands.ReplicableCommand

Writes this instance to the ObjectOutput.

Parameters:

output - the stream.

Throws:

IOException - if an error occurred during the I/O.

readFrom

public void readFrom(ObjectInput input)
              throws IOException

Description copied from interface: org.infinispan.commands.ReplicableCommand

Reads this instance from the stream written by ReplicableCommand.writeTo(ObjectOutput).

Parameters:

input - the stream to read.

Throws:

IOException - if an error occurred during the I/O.

invoke

public Object invoke()
              throws Throwable

Description copied from interface: org.infinispan.commands.ReplicableCommand

Invoke the command synchronously.

This method is optional. Unless your command never blocks, please implement ReplicableCommand.invokeAsync() instead.

Throws:

Throwable

inject

public void inject(EmbeddedCacheManager cacheManager)

toString

public String toString()

Overrides:

toString in class org.infinispan.commands.remote.BaseRpcCommand