org.hibernate.cache.impl.bridge.RegionFactoryCacheProviderBridge Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.cache.impl.bridge;
import java.util.Properties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.hibernate.cache.RegionFactory;
import org.hibernate.cache.CacheProvider;
import org.hibernate.cache.CacheException;
import org.hibernate.cache.EntityRegion;
import org.hibernate.cache.CollectionRegion;
import org.hibernate.cache.QueryResultsRegion;
import org.hibernate.cache.NoCacheProvider;
import org.hibernate.cache.TimestampsRegion;
import org.hibernate.cache.CacheDataDescription;
import org.hibernate.cache.access.AccessType;
import org.hibernate.util.PropertiesHelper;
import org.hibernate.util.ReflectHelper;
import org.hibernate.cfg.Environment;
import org.hibernate.cfg.Settings;
/**
* Acts as a bridge between the {@link RegionFactory} contract and the older
* {@link CacheProvider} contract.
*
* @author Steve Ebersole
*/
public class RegionFactoryCacheProviderBridge implements RegionFactory {
public static final String DEF_PROVIDER = NoCacheProvider.class.getName();
private static final Logger log = LoggerFactory.getLogger( RegionFactoryCacheProviderBridge.class );
private CacheProvider cacheProvider;
private Settings settings;
public RegionFactoryCacheProviderBridge(Properties properties) {
String providerClassName = PropertiesHelper.getString( Environment.CACHE_PROVIDER, properties, DEF_PROVIDER );
log.info( "Cache provider: " + providerClassName );
try {
cacheProvider = ( CacheProvider ) ReflectHelper.classForName( providerClassName ).newInstance();
}
catch ( Exception cnfe ) {
throw new CacheException( "could not instantiate CacheProvider [" + providerClassName + "]", cnfe );
}
}
public void start(Settings settings, Properties properties) throws CacheException {
this.settings = settings;
cacheProvider.start( properties );
}
public void stop() {
cacheProvider.stop();
cacheProvider = null;
}
public boolean isMinimalPutsEnabledByDefault() {
return cacheProvider.isMinimalPutsEnabledByDefault();
}
/**
* {@inheritDoc}
*/
public AccessType getDefaultAccessType() {
// we really have no idea
return null;
}
public long nextTimestamp() {
return cacheProvider.nextTimestamp();
}
public CacheProvider getCacheProvider() {
return cacheProvider;
}
public EntityRegion buildEntityRegion(
String regionName,
Properties properties,
CacheDataDescription metadata) throws CacheException {
return new EntityRegionAdapter( cacheProvider.buildCache( regionName, properties ), settings, metadata );
}
public CollectionRegion buildCollectionRegion(
String regionName,
Properties properties,
CacheDataDescription metadata) throws CacheException {
return new CollectionRegionAdapter( cacheProvider.buildCache( regionName, properties ), settings, metadata );
}
public QueryResultsRegion buildQueryResultsRegion(String regionName, Properties properties) throws CacheException {
return new QueryResultsRegionAdapter( cacheProvider.buildCache( regionName, properties ), settings );
}
public TimestampsRegion buildTimestampsRegion(String regionName, Properties properties) throws CacheException {
return new TimestampsRegionAdapter( cacheProvider.buildCache( regionName, properties ), settings );
}
}