[jbossseam-issues] [JBoss JIRA] Created: (JBSEAM-1745) SpringTransaction fails with HibernateJpaDialect and FlushMode.MANUAL
SpringTransaction fails with HibernateJpaDialect and FlushMode.MANUAL
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Key: JBSEAM-1745
URL: http://jira.jboss.com/jira/browse/JBSEAM-1745
Project: JBoss Seam
Issue Type: Bug
Components: Spring
Reporter: Darryl Smith
When using flushMode = MANUAL with org.springframework.orm.jpa.vendor.HibernateJpaDialect,
the flushMode is changed to AUTO when beginning transaction
SessionImpl.setFlushMode(FlushMode) line: 1286
HibernateSessionProxy.setFlushMode(FlushMode) line: 381
SeamHibernateJpaDialect(HibernateJpaDialect).beginTransaction(EntityManager,
TransactionDefinition) line: 60
JpaTransactionManager.doBegin(Object, TransactionDefinition) line: 326
JpaTransactionManager(AbstractPlatformTransactionManager).getTransaction(TransactionDefinition)
line: 350
SpringTransaction.begin() line: 74
Unless the transaction definition is set to readOnly spring will change the flushMode to
manual
HibernateJpaDialect:45
--------------------------------
public Object beginTransaction(EntityManager entityManager, TransactionDefinition
definition)
throws PersistenceException, SQLException, TransactionException {
super.beginTransaction(entityManager, definition);
Session session = getSession(entityManager);
FlushMode flushMode = session.getFlushMode();
FlushMode previousFlushMode = null;
if (definition.isReadOnly()) {
// We should suppress flushing for a read-only transaction.
session.setFlushMode(FlushMode.MANUAL);
previousFlushMode = flushMode;
}
else {
// We need AUTO or COMMIT for a non-read-only transaction.
if (flushMode.lessThan(FlushMode.COMMIT)) {
session.setFlushMode(FlushMode.AUTO);
previousFlushMode = flushMode;
}
}
return new SessionTransactionData(session, previousFlushMode);
}
Perhaps SpringTransaction should set should pass readOnly transaction def to Spring when
the flushMode is manual.
Current Workaround: use DefaultJpaDialect
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