org.silverpeas.persistence
Class Transaction

java.lang.Object
  org.silverpeas.persistence.Transaction

@Service
public class Transaction
extends Object

A transaction. All processes it performs will be in charge by the JPA transaction manager.

Author:

mmoquillon

Nested Class Summary

static interface

Transaction.Process<RETURN_VALUE> Defines a process to execute.

Constructor Summary

Transaction()

Method Summary

static Transaction	getTransaction() Gets a transaction instance in order to perform some tasks transactionally.
<RETURN_VALUE> RETURN_VALUE	perform(Transaction.Process<RETURN_VALUE> process) The given process is executed in a transaction : support a current transaction, create a new one if none exists.
static <RETURN_VALUE> RETURN_VALUE	performInOne(Transaction.Process<RETURN_VALUE> process) Performs in a single transaction the specified process.

Methods inherited from class java.lang.Object

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

Constructor Detail

Transaction

public Transaction()

Method Detail

getTransaction

public static Transaction getTransaction()

Gets a transaction instance in order to perform some tasks transactionally.

Returns:

a transaction.

performInOne

public static <RETURN_VALUE> RETURN_VALUE performInOne(Transaction.Process<RETURN_VALUE> process)

Performs in a single transaction the specified process.

Type Parameters:

RETURN_VALUE - the type of the return value.

Parameters:

process - the process to execute in a transaction.

Returns:

the result of the process.

perform

@Transactional
public <RETURN_VALUE> RETURN_VALUE perform(Transaction.Process<RETURN_VALUE> process)

The given process is executed in a transaction : support a current transaction, create a new one if none exists. Analogous to EJB transaction attribute of the same name.

Type Parameters:

RETURN_VALUE - the type of the return value.

Parameters:

process - the process to execute in a transaction.

Returns:

the result of the process.