/*
* Hibernate OGM, Domain model persistence for NoSQL datastores
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.ogm.datastore.map.impl;
import java.io.Serializable;
import org.hibernate.JDBCException;
import org.hibernate.LockMode;
import org.hibernate.StaleObjectStateException;
import org.hibernate.dialect.lock.LockingStrategy;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.ogm.grid.EntityKey;
import org.hibernate.ogm.persister.EntityKeyBuilder;
import org.hibernate.ogm.persister.OgmEntityPersister;
import org.hibernate.persister.entity.Lockable;
/**
* @author Sanne Grinovero <sanne@hibernate.org> (C) 2011 Red Hat Inc.
* @author Emmanuel Bernard <emmanuel@hibernate.org>
*/
public final class MapPessimisticReadLockingStrategy extends MapPessimisticWriteLockingStrategy implements LockingStrategy {
public MapPessimisticReadLockingStrategy(Lockable lockable, LockMode lockMode) {
super( lockable, lockMode );
}
@Override
public void lock(Serializable id, Object version, Object object, int timeout, SessionImplementor session) throws StaleObjectStateException, JDBCException {
MapDatastoreProvider dataStore = getProvider( session );
EntityKey key = EntityKeyBuilder.fromData(
( (OgmEntityPersister) lockable ).getRootEntityKeyMetadata(),
identifierGridType,
id,
session );
dataStore.readLock( key, timeout );
}
}