org.jboss.cache.commands.legacy.write
Class PessClearDataCommand

java.lang.Object
  extended by org.jboss.cache.commands.read.AbstractDataCommand
      extended by org.jboss.cache.commands.write.AbstractVersionedDataCommand
          extended by org.jboss.cache.commands.write.ClearDataCommand
              extended by org.jboss.cache.commands.legacy.write.PessClearDataCommand
All Implemented Interfaces:
DataCommand, ReversibleCommand, ReplicableCommand, VersionedDataCommand, VisitableCommand, WriteCommand

Deprecated. will be removed along with optimistic and pessimistic locking.

@Deprecated
public class PessClearDataCommand
extends ClearDataCommand
implements ReversibleCommand

A version of ClearDataCommand which can be rolled back, for use with pessimistic locking where changes are made directly on the data structures and may need to be reversed.

Since:
3.0
Author:
Manik Surtani (manik AT jboss DOT org)

Field Summary
 
Fields inherited from class org.jboss.cache.commands.write.ClearDataCommand
log, METHOD_ID, trace, VERSIONED_METHOD_ID
 
Fields inherited from class org.jboss.cache.commands.write.AbstractVersionedDataCommand
dataVersion, globalTransaction, notifier
 
Fields inherited from class org.jboss.cache.commands.read.AbstractDataCommand
dataContainer, fqn
 
Constructor Summary
PessClearDataCommand()
          Deprecated.  
PessClearDataCommand(GlobalTransaction gtx, Fqn fqn)
          Deprecated.  
 
Method Summary
 Object perform(InvocationContext ctx)
          Deprecated. Clears the data map in the node referenced by the specified Fqn.
 void rollback()
          Deprecated. Reverses a command that has already been invoked.
 
Methods inherited from class org.jboss.cache.commands.write.ClearDataCommand
acceptVisitor, equals, getCommandId, getParameters, hashCode, isVersionedId, setParameters, toString
 
Methods inherited from class org.jboss.cache.commands.write.AbstractVersionedDataCommand
getDataVersion, getGlobalTransaction, initialize, isVersioned, peekVersioned, setDataVersion, setGlobalTransaction
 
Methods inherited from class org.jboss.cache.commands.read.AbstractDataCommand
getFqn, initialize
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 
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, setParameters
 

Constructor Detail

PessClearDataCommand

public PessClearDataCommand(GlobalTransaction gtx,
                            Fqn fqn)
Deprecated. 

PessClearDataCommand

public PessClearDataCommand()
Deprecated. 
Method Detail

perform

public Object perform(InvocationContext ctx)
Deprecated. 
Description copied from class: ClearDataCommand
Clears the data map in the node referenced by the specified Fqn.

Specified by:
perform in interface ReplicableCommand
Overrides:
perform in class ClearDataCommand
Parameters:
ctx - invocation context
Returns:
null

rollback

public void rollback()
Deprecated. 
Description copied from interface: ReversibleCommand
Reverses a command that has already been invoked.

Important: this method will be invoked at the end of interceptors chain. It should never be called directly from a custom interceptor.

Specified by:
rollback in interface ReversibleCommand


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