org.infinispan.commands.tx
Class VersionedPrepareCommand

java.lang.Object
  org.infinispan.commands.tx.AbstractTransactionBoundaryCommand
      org.infinispan.commands.tx.PrepareCommand
          org.infinispan.commands.tx.VersionedPrepareCommand

All Implemented Interfaces:

CacheRpcCommand, ReplicableCommand, TransactionBoundaryCommand, VisitableCommand

public class VersionedPrepareCommand
extends PrepareCommand

Same as PrepareCommand except that the transaction originator makes evident the versions of entries touched and stored in a transaction context so that accurate write skew checks may be performed by the lock owner(s).

Since:

5.1

Author:

Manik Surtani

Field Summary

static byte

COMMAND_ID

Fields inherited from class org.infinispan.commands.tx.PrepareCommand

modifications, notifier, onePhaseCommit, recoveryManager

Fields inherited from class org.infinispan.commands.tx.AbstractTransactionBoundaryCommand

cacheName, configuration, globalTx, icc, invoker, txTable

Constructor Summary

VersionedPrepareCommand()

VersionedPrepareCommand(String cacheName)

VersionedPrepareCommand(String cacheName, GlobalTransaction gtx, List<WriteCommand> modifications, boolean onePhase)

Method Summary

byte	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
EntryVersionsMap	getVersionsSeen()
boolean	isReturnValueExpected() If true, a return value will be provided when performed remotely.
void	setParameters(int commandId, Object[] args) Used by the CommandsFactory to create a command from raw data read off a stream.
void	setVersionsSeen(EntryVersionsMap versionsSeen)
String	toString()

Methods inherited from class org.infinispan.commands.tx.PrepareCommand

acceptVisitor, containsModificationType, copy, existModifications, getAffectedKeys, getModifications, getModificationsCount, hasModifications, initialize, isOnePhaseCommit, isReplayEntryWrapping, perform, setReplayEntryWrapping, writesToASingleKey

Methods inherited from class org.infinispan.commands.tx.AbstractTransactionBoundaryCommand

equals, getCacheName, getConfiguration, getGlobalTransaction, getOrigin, hashCode, ignoreCommandOnStatus, init, injectComponents, invalidRemoteTxReturnValue, markTransactionAsRemote, setOrigin, shouldInvoke, visitRemoteTransaction

Methods inherited from class java.lang.Object

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

Field Detail

COMMAND_ID

public static final byte COMMAND_ID

See Also:

Constant Field Values

Constructor Detail

VersionedPrepareCommand

public VersionedPrepareCommand()

VersionedPrepareCommand

public VersionedPrepareCommand(String cacheName,
                               GlobalTransaction gtx,
                               List<WriteCommand> modifications,
                               boolean onePhase)

VersionedPrepareCommand

public VersionedPrepareCommand(String cacheName)

Method Detail

getVersionsSeen

public EntryVersionsMap getVersionsSeen()

setVersionsSeen

public void setVersionsSeen(EntryVersionsMap versionsSeen)

getCommandId

public byte 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.

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

isReturnValueExpected

public boolean isReturnValueExpected()

Description copied from interface: 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.

Specified by:

isReturnValueExpected in interface ReplicableCommand

Overrides:

isReturnValueExpected in class PrepareCommand

Returns:

true or false

toString

public String toString()

Overrides:

toString in class PrepareCommand