/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.ignite.cache.hibernate;
import org.apache.ignite.Ignite;
import org.hibernate.cache.CacheException;
import org.hibernate.cache.spi.CacheDataDescription;
import org.hibernate.cache.spi.NaturalIdRegion;
import org.hibernate.cache.spi.access.AccessType;
import org.hibernate.cache.spi.access.NaturalIdRegionAccessStrategy;
import org.hibernate.cache.spi.access.SoftLock;
/**
* Implementation of {@link NaturalIdRegion}. This region is used to store naturalId data.
* <p>
* L2 cache for entity naturalId and target cache region can be set using annotations:
* <pre name="code" class="java">
* @javax.persistence.Entity
* @javax.persistence.Cacheable
* @org.hibernate.annotations.Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
* @org.hibernate.annotations.NaturalIdCache
* public class Entity {
* @org.hibernate.annotations.NaturalId
* private String entityCode;
*
* ...
* }
* </pre>
*/
public class HibernateNaturalIdRegion extends HibernateTransactionalDataRegion implements NaturalIdRegion {
/**
* @param factory Region factory.
* @param name Region name.
* @param ignite Grid.
* @param cache Region cache,
* @param dataDesc Region data description.
*/
HibernateNaturalIdRegion(HibernateRegionFactory factory,
String name,
Ignite ignite,
HibernateCacheProxy cache,
CacheDataDescription dataDesc) {
super(factory, name, ignite, cache, dataDesc);
}
/** {@inheritDoc} */
@Override public NaturalIdRegionAccessStrategy buildAccessStrategy(AccessType accessType) throws CacheException {
return new AccessStrategy(createAccessStrategy(accessType));
}
/**
* NaturalId region access strategy.
*/
private class AccessStrategy extends HibernateAbstractRegionAccessStrategy implements
NaturalIdRegionAccessStrategy {
/**
* @param stgy Access strategy implementation.
*/
private AccessStrategy(HibernateAccessStrategyAdapter stgy) {
super(stgy);
}
/** {@inheritDoc} */
@Override public NaturalIdRegion getRegion() {
return HibernateNaturalIdRegion.this;
}
/** {@inheritDoc} */
@Override public boolean insert(Object key, Object val) throws CacheException {
return stgy.insert(key, val);
}
/** {@inheritDoc} */
@Override public boolean afterInsert(Object key, Object val) throws CacheException {
return stgy.afterInsert(key, val);
}
/** {@inheritDoc} */
@Override public boolean update(Object key, Object val) throws CacheException {
return stgy.update(key, val);
}
/** {@inheritDoc} */
@Override public boolean afterUpdate(Object key, Object val, SoftLock lock) throws CacheException {
return stgy.afterUpdate(key, val);
}
}
}