Java Code Examples for org.hibernate.persister.entity.Loadable#isVersioned()

/**
 * The entity instance is already in the session cache
 */
private void instanceAlreadyLoaded(
		final ResultSet rs,
		final int i,
		final Loadable persister,
		final EntityKey key,
		final Object object,
		final LockMode requestedLockMode,
		final SharedSessionContractImplementor session)
		throws HibernateException, SQLException {
	if ( !persister.isInstance( object ) ) {
		throw new WrongClassException(
				"loaded object was of wrong class " + object.getClass(),
				key.getIdentifier(),
				persister.getEntityName()
		);
	}

	if ( LockMode.NONE != requestedLockMode && upgradeLocks() ) { //no point doing this if NONE was requested
		final EntityEntry entry = session.getPersistenceContext().getEntry( object );
		if ( entry.getLockMode().lessThan( requestedLockMode ) ) {
			//we only check the version when _upgrading_ lock modes
			if ( persister.isVersioned() ) {
				checkVersion( i, persister, key.getIdentifier(), object, rs, session );
			}
			//we need to upgrade the lock mode to the mode requested
			entry.setLockMode( requestedLockMode );
		}
	}
}
 

/**
 * The entity instance is already in the session cache
 */
private void instanceAlreadyLoaded(
        final ResultSet rs,
        final int i,
        final Loadable persister,
        final EntityKey key,
        final Object object,
        final LockMode lockMode,
        final SessionImplementor session) 
throws HibernateException, SQLException {

	if ( !persister.isInstance( object, session.getEntityMode() ) ) {
		throw new WrongClassException( 
				"loaded object was of wrong class " + object.getClass(), 
				key.getIdentifier(), 
				persister.getEntityName() 
			);
	}

	if ( LockMode.NONE != lockMode && upgradeLocks() ) { //no point doing this if NONE was requested

		final boolean isVersionCheckNeeded = persister.isVersioned() &&
				session.getPersistenceContext().getEntry(object)
						.getLockMode().lessThan( lockMode );
		// we don't need to worry about existing version being uninitialized
		// because this block isn't called by a re-entrant load (re-entrant
		// loads _always_ have lock mode NONE)
		if (isVersionCheckNeeded) {
			//we only check the version when _upgrading_ lock modes
			checkVersion( i, persister, key.getIdentifier(), object, rs, session );
			//we need to upgrade the lock mode to the mode requested
			session.getPersistenceContext().getEntry(object)
					.setLockMode(lockMode);
		}
	}
}
 

/**
 * Calculate and cache select-clause suffixes.
 * @param map 
 */
public DefaultEntityAliases(Map userProvidedAliases, Loadable persister, String suffix) {
	this.suffix = suffix;
	this.userProvidedAliases = userProvidedAliases;
	
	String[] keyColumnsCandidates = getUserProvidedAliases(
			persister.getIdentifierPropertyName(), 
			(String[]) null
		); 
	if (keyColumnsCandidates==null) {
		suffixedKeyColumns = getUserProvidedAliases(
				"id", 
				getIdentifierAliases(persister, suffix)
			);
	} 
	else {
		suffixedKeyColumns = keyColumnsCandidates;
	}
	intern(suffixedKeyColumns);
	
	suffixedPropertyColumns = getSuffixedPropertyAliases(persister);
	suffixedDiscriminatorColumn = getUserProvidedAlias(
			"class", 
			getDiscriminatorAlias(persister, suffix)
		);
	if ( persister.isVersioned() ) { 
		suffixedVersionColumn = suffixedPropertyColumns[ persister.getVersionProperty() ];
	}
	else {
		suffixedVersionColumn = null;
	}
	rowIdAlias = Loadable.ROWID_ALIAS + suffix; // TODO: not visible to the user!
}
 

private String[] determineVersionAlias(Loadable persister) {
	return persister.isVersioned()
			? suffixedPropertyColumns[ persister.getVersionProperty() ]
			: null;
}