org.opendaylight.vtn.manager.internal.flow.add

Class RollbackTxTask

java.lang.Object

org.opendaylight.vtn.manager.internal.util.tx.AbstractTxTask<Void>

org.opendaylight.vtn.manager.internal.flow.add.RollbackTxTask

All Implemented Interfaces:

TxTask<Void>

public final class RollbackTxTask
extends AbstractTxTask<Void>

RollbackTxTask describes the MD-SAL datastore transaction task that rollbacks changes made by PutFlowTxTask.

Constructor Summary

Constructors

Constructor and Description
RollbackTxTask(FlowAddContext ctx) Construct a new instance.

Method Summary

Modifier and Type	Method and Description
Void	execute(TxContext ctx) Modify the MD-SAL datastore using the given transaction.
void	onFailure(VTNManagerProvider provider, Throwable t) Invoked when the task has failed.

Methods inherited from class org.opendaylight.vtn.manager.internal.util.tx.AbstractTxTask

addBackgroundTask, execute, getBackgroundTasks, getMaxRetry, onSuccess

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.opendaylight.vtn.manager.internal.TxTask

isAsync, needErrorLog

Constructor Detail

RollbackTxTask

public RollbackTxTask(FlowAddContext ctx)

Construct a new instance.

Parameters:

ctx - A FlowAddContext instance.

Method Detail

execute

public Void execute(TxContext ctx)
             throws VTNException

Modify the MD-SAL datastore using the given transaction.

Note that this method may be called more than once when a MD-SAL datastore transaction is aborted due to data conflict.

Specified by:

execute in class AbstractTxTask<Void>

Parameters:

ctx - A runtime context for transaction task.

Returns:

Result of this task.

Throws:

VTNException - An error occurred.

onFailure

public void onFailure(VTNManagerProvider provider,
                      Throwable t)

Invoked when the task has failed.

Specified by:

onFailure in interface TxTask<Void>

Overrides:

onFailure in class AbstractTxTask<Void>

Parameters:

provider - VTN Manager provider service.

t - A Throwable thrown by the task.