org.jboss.cache.commands

Interface VersionedDataCommand

All Superinterfaces:

DataCommand, ReplicableCommand, VisitableCommand, WriteCommand

All Known Implementing Classes:

AbstractVersionedDataCommand, ClearDataCommand, PessClearDataCommand, PessPutDataMapCommand, PessPutForExternalReadCommand, PessPutKeyValueCommand, PessRemoveKeyCommand, PessRemoveNodeCommand, PutDataMapCommand, PutForExternalReadCommand, PutKeyValueCommand, RemoveKeyCommand, RemoveNodeCommand, VersionedInvalidateCommand

public interface VersionedDataCommand
extends WriteCommand

Just like a DataCommand, except that these are versioned and reversible too. Versioning is currently used by optimistic locking, and in future will be used by MVCC as well.

Since:

2.2.0

Author:

Mircea.Markus@jboss.com, Manik Surtani (manik AT jboss DOT org)

Method Summary

Methods

Modifier and Type	Method and Description
DataVersion	getDataVersion()
boolean	isVersioned() Has data version set? (i.e.
void	setDataVersion(DataVersion dataVersion) Sets the DataVersion pertaining to this command.

Methods inherited from interface org.jboss.cache.commands.WriteCommand

getGlobalTransaction, setGlobalTransaction

Methods inherited from interface org.jboss.cache.commands.DataCommand

getFqn

Methods inherited from interface org.jboss.cache.commands.VisitableCommand

acceptVisitor

Methods inherited from interface org.jboss.cache.commands.ReplicableCommand

getCommandId, getParameters, perform, setParameters

Method Detail

getDataVersion

DataVersion getDataVersion()

Returns:

the DataVersion pertaining to this command.

setDataVersion

void setDataVersion(DataVersion dataVersion)

Sets the DataVersion pertaining to this command.

Parameters:

dataVersion - to set

isVersioned

boolean isVersioned()

Has data version set? (i.e. not null)

Returns:

true if getDataVersion() would not return null; false otherwise.