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/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html
*/
package org.hibernate.cache.spi.support;
import org.hibernate.cache.cfg.spi.EntityDataCachingConfig;
import org.hibernate.cache.spi.CacheKeysFactory;
import org.hibernate.cache.spi.DomainDataRegion;
import org.hibernate.cache.spi.SecondLevelCacheLogger;
import org.hibernate.cache.spi.access.AccessType;
import org.hibernate.cache.spi.access.SoftLock;
import org.hibernate.engine.spi.SharedSessionContractImplementor;
import org.jboss.logging.Logger;
/**
* Standard support for {@link org.hibernate.cache.spi.access.EntityDataAccess}
* using the {@link org.hibernate.cache.spi.access.AccessType#READ_ONLY} access type.
*
* @author Steve Ebersole
*/
public class EntityReadOnlyAccess extends AbstractEntityDataAccess {
private static final Logger log = Logger.getLogger( EntityReadOnlyAccess.class );
public EntityReadOnlyAccess(
DomainDataRegion region,
CacheKeysFactory cacheKeysFactory,
DomainDataStorageAccess storageAccess,
EntityDataCachingConfig config) {
super( region, cacheKeysFactory, storageAccess );
if ( config.isMutable() ) {
SecondLevelCacheLogger.INSTANCE.readOnlyCachingMutableEntity( config.getNavigableRole() );
}
}
@Override
public AccessType getAccessType() {
return AccessType.READ_ONLY;
}
@Override
public boolean insert(SharedSessionContractImplementor session, Object key, Object value, Object version) {
// wait until tx complete - see `#afterInsert`
return false;
}
@Override
public boolean afterInsert(SharedSessionContractImplementor session, Object key, Object value, Object version) {
getStorageAccess().putIntoCache( key, value, session );
return true;
}
@Override
public void unlockItem(SharedSessionContractImplementor session, Object key, SoftLock lock) {
evict( key );
}
@Override
public boolean update(
SharedSessionContractImplementor session,
Object key,
Object value,
Object currentVersion,
Object previousVersion) {
log.debugf( "Illegal attempt to update item cached as read-only [%s]", key );
throw new UnsupportedOperationException( "Can't update readonly object" );
}
@Override
public boolean afterUpdate(
SharedSessionContractImplementor session,
Object key,
Object value,
Object currentVersion,
Object previousVersion,
SoftLock lock) {
log.debugf( "Illegal attempt to update item cached as read-only [%s]", key );
throw new UnsupportedOperationException( "Can't write to a readonly object" );
}
}