/*
* Copyright 2002-2010 the original author or authors.
*
* Licensed 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.springframework.orm.hibernate3;
import java.lang.reflect.Method;
import java.util.Properties;
import org.hibernate.cache.CacheDataDescription;
import org.hibernate.cache.CacheException;
import org.hibernate.cache.CollectionRegion;
import org.hibernate.cache.EntityRegion;
import org.hibernate.cache.QueryResultsRegion;
import org.hibernate.cache.RegionFactory;
import org.hibernate.cache.TimestampsRegion;
import org.hibernate.cache.access.AccessType;
import org.hibernate.cfg.Settings;
import org.springframework.util.ReflectionUtils;
/**
* Proxy for a Hibernate RegionFactory, delegating to a Spring-managed
* RegionFactory instance, determined by LocalSessionFactoryBean's
* "cacheRegionFactory" property.
*
* <p>Compatible with Hibernate 3.3 as well as Hibernate 3.5's version
* of the RegionFactory SPI.
*
* @author Juergen Hoeller
* @since 3.0
* @see LocalSessionFactoryBean#setCacheRegionFactory
*/
public class LocalRegionFactoryProxy implements RegionFactory {
private final RegionFactory regionFactory;
/**
* Standard constructor.
*/
public LocalRegionFactoryProxy() {
RegionFactory rf = (RegionFactory) LocalSessionFactoryBean.getConfigTimeRegionFactory();
// absolutely needs thread-bound RegionFactory to initialize
if (rf == null) {
throw new IllegalStateException("No Hibernate RegionFactory found - " +
"'cacheRegionFactory' property must be set on LocalSessionFactoryBean");
}
this.regionFactory = rf;
}
/**
* Properties constructor: not used by this class or formally required,
* but enforced by Hibernate when reflectively instantiating a RegionFactory.
*/
public LocalRegionFactoryProxy(Properties properties) {
this();
}
public void start(Settings settings, Properties properties) throws CacheException {
this.regionFactory.start(settings, properties);
}
public void stop() {
this.regionFactory.stop();
}
public boolean isMinimalPutsEnabledByDefault() {
return this.regionFactory.isMinimalPutsEnabledByDefault();
}
public AccessType getDefaultAccessType() {
try {
Method method = RegionFactory.class.getMethod("getDefaultAccessType");
return (AccessType) ReflectionUtils.invokeMethod(method, this.regionFactory);
}
catch (NoSuchMethodException ex) {
throw new IllegalStateException("getDefaultAccessType requires Hibernate 3.5+");
}
}
public long nextTimestamp() {
return this.regionFactory.nextTimestamp();
}
public EntityRegion buildEntityRegion(String regionName, Properties properties, CacheDataDescription metadata)
throws CacheException {
return this.regionFactory.buildEntityRegion(regionName, properties, metadata);
}
public CollectionRegion buildCollectionRegion(String regionName, Properties properties,
CacheDataDescription metadata) throws CacheException {
return this.regionFactory.buildCollectionRegion(regionName, properties, metadata);
}
public QueryResultsRegion buildQueryResultsRegion(String regionName, Properties properties)
throws CacheException {
return this.regionFactory.buildQueryResultsRegion(regionName, properties);
}
public TimestampsRegion buildTimestampsRegion(String regionName, Properties properties)
throws CacheException {
return this.regionFactory.buildTimestampsRegion(regionName, properties);
}
}