| /* |
| * 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.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.internal.processors.cache.IgniteInternalCache; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Implementation of {TRANSACTIONAL cache access strategy. |
| * <p> |
| * It is supposed that this strategy is used in JTA environment and Hibernate and |
| * {@link IgniteInternalCache} corresponding to the L2 cache region are configured to use the same transaction manager. |
| * <p> |
| * Configuration of L2 cache and per-entity cache access strategy can be set in the |
| * Hibernate configuration file: |
| * <pre name="code" class="xml"> |
| * <hibernate-configuration> |
| * <!-- Enable L2 cache. --> |
| * <property name="cache.use_second_level_cache">true</property> |
| * |
| * <!-- Use Ignite as L2 cache provider. --> |
| * <property name="cache.region.factory_class">org.apache.ignite.cache.hibernate.HibernateRegionFactory</property> |
| * |
| * <!-- Specify entity. --> |
| * <mapping class="com.example.Entity"/> |
| * |
| * <!-- Enable L2 cache with transactional access strategy for entity. --> |
| * <class-cache class="com.example.Entity" usage="transactional"/> |
| * </hibernate-configuration> |
| * </pre> |
| * Also cache access strategy can be set using annotations: |
| * <pre name="code" class="java"> |
| * @javax.persistence.Entity |
| * @javax.persistence.Cacheable |
| * @org.hibernate.annotations.Cache(usage = CacheConcurrencyStrategy.TRANSACTIONAL) |
| * public class Entity { ... } |
| * </pre> |
| */ |
| public class HibernateTransactionalAccessStrategy extends HibernateAccessStrategyAdapter { |
| /** |
| * @param ignite Grid. |
| * @param cache Cache. |
| * @param eConverter Exception converter. |
| */ |
| HibernateTransactionalAccessStrategy(Ignite ignite, |
| HibernateCacheProxy cache, |
| HibernateExceptionConverter eConverter) { |
| super(ignite, cache, eConverter); |
| } |
| |
| /** {@inheritDoc} */ |
| @Nullable @Override public Object get(Object key) { |
| try { |
| Object val = cache.get(key); |
| |
| if (log.isDebugEnabled()) |
| log.debug("Get [cache=" + cache.name() + ", key=" + key + ", val=" + val + ']'); |
| |
| return val; |
| } |
| catch (IgniteCheckedException e) { |
| throw convertException(e); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void putFromLoad(Object key, Object val) { |
| try { |
| cache.put(key, val); |
| |
| if (log.isDebugEnabled()) |
| log.debug("Put [cache=" + cache.name() + ", key=" + key + ", val=" + val + ']'); |
| } |
| catch (IgniteCheckedException e) { |
| throw convertException(e); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void lock(Object key) { |
| // No-op. |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void unlock(Object key) { |
| // No-op. |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean update(Object key, Object val) { |
| try { |
| boolean res = cache.put(key, val); |
| |
| if (log.isDebugEnabled()) |
| log.debug("Update [cache=" + cache.name() + ", key=" + key + ", val=" + val + ", res=" + res + ']'); |
| |
| return res; |
| } |
| catch (IgniteCheckedException e) { |
| throw convertException(e); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean afterUpdate(Object key, Object val) { |
| return false; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean insert(Object key, Object val) { |
| try { |
| boolean res = cache.put(key, val); |
| |
| if (log.isDebugEnabled()) |
| log.debug("Insert [cache=" + cache.name() + ", key=" + key + ", val=" + val + ", res=" + res + ']'); |
| |
| return res; |
| } |
| catch (IgniteCheckedException e) { |
| throw convertException(e); |
| } |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean afterInsert(Object key, Object val) { |
| return false; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void remove(Object key) { |
| try { |
| cache.remove(key); |
| } |
| catch (IgniteCheckedException e) { |
| throw convertException(e); |
| } |
| } |
| } |