/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC 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 Middleware LLC.
*
* 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 org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.hibernate.cache.EntityRegion;
import org.hibernate.cache.Cache;
import org.hibernate.cache.CacheDataDescription;
import org.hibernate.cache.OptimisticCache;
import org.hibernate.cache.CacheException;
import org.hibernate.cache.CacheConcurrencyStrategy;
import org.hibernate.cache.ReadOnlyCache;
import org.hibernate.cache.ReadWriteCache;
import org.hibernate.cache.NonstrictReadWriteCache;
import org.hibernate.cache.TransactionalCache;
import org.hibernate.cache.access.EntityRegionAccessStrategy;
import org.hibernate.cache.access.AccessType;
import org.hibernate.cfg.Settings;
/**
* Adapter specifically bridging {@link EntityRegion} to {@link Cache}.
*
* @author Steve Ebersole
*/
public class EntityRegionAdapter extends BaseTransactionalDataRegionAdapter implements EntityRegion {
private static final Logger log = LoggerFactory.getLogger( EntityRegionAdapter.class );
public EntityRegionAdapter(Cache underlyingCache, Settings settings, CacheDataDescription metadata) {
super( underlyingCache, settings, metadata );
if ( underlyingCache instanceof OptimisticCache ) {
( ( OptimisticCache ) underlyingCache ).setSource( new OptimisticCacheSourceAdapter( metadata ) );
}
}
public EntityRegionAccessStrategy buildAccessStrategy(AccessType accessType) throws CacheException {
CacheConcurrencyStrategy ccs;
if ( AccessType.READ_ONLY.equals( accessType ) ) {
if ( metadata.isMutable() ) {
log.warn( "read-only cache configured for mutable entity [" + getName() + "]" );
}
ccs = new ReadOnlyCache();
}
else if ( AccessType.READ_WRITE.equals( accessType ) ) {
ccs = new ReadWriteCache();
}
else if ( AccessType.NONSTRICT_READ_WRITE.equals( accessType ) ) {
ccs = new NonstrictReadWriteCache();
}
else if ( AccessType.TRANSACTIONAL.equals( accessType ) ) {
ccs = new TransactionalCache();
}
else {
throw new IllegalArgumentException( "unrecognized access strategy type [" + accessType + "]" );
}
ccs.setCache( underlyingCache );
return new EntityAccessStrategyAdapter( this, ccs, settings );
}
}