org.apache.marmotta.kiwi.versioning.sail

Class KiWiVersionListener

java.lang.Object

org.apache.marmotta.kiwi.versioning.sail.KiWiVersionListener

All Implemented Interfaces:

TransactionListener

public class KiWiVersionListener
extends Object
implements TransactionListener

A version listener that can be added to a KiWiTransactionalStore. Will create versions when a transaction commits.

Author: Sebastian Schaffert

Constructor Summary

Constructors

Constructor and Description
KiWiVersionListener()

Method Summary

Methods

Modifier and Type	Method and Description
void	afterCommit(TransactionData data) Called after a transaction has committed.
void	beforeCommit(TransactionData data) Called before a transaction commits.
KiWiVersioningPersistence	getVersioningBackend() Return the backend used for versioning.
void	rollback(TransactionData data) Called when a transaction rolls back.

Methods inherited from class java.lang.Object

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

Constructor Detail

KiWiVersionListener

public KiWiVersionListener()

Method Detail

afterCommit

public void afterCommit(TransactionData data)

Called after a transaction has committed. The transaction data will contain all changes done in the transaction since the last commit. This method should be used in case the transaction listener aims to perform additional activities in a new transaction or outside the transaction management, e.g. notifying a server on the network, adding data to a cache, or similar.

Specified by:

afterCommit in interface TransactionListener

Parameters:

data -

beforeCommit

public void beforeCommit(TransactionData data)

Called before a transaction commits. The transaction data will contain all changes done in the transaction since the last commit. This method should be used in case the transaction listener aims to perform additional activities in the same transaction, like inserting or updating database tables.

Specified by:

beforeCommit in interface TransactionListener

Parameters:

data -

rollback

public void rollback(TransactionData data)

Called when a transaction rolls back.

Specified by:

rollback in interface TransactionListener

getVersioningBackend

public KiWiVersioningPersistence getVersioningBackend()

Return the backend used for versioning. Used to provide advanced access to versions, e.g. for listing.

Returns: