org.hibernate.testing.cache.ReadOnlyEntityRegionAccessStrategy Maven / Gradle / Ivy
/*
* 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 .
*/
package org.hibernate.testing.cache;
import org.hibernate.cache.CacheException;
import org.hibernate.cache.spi.access.SoftLock;
import org.hibernate.engine.spi.SessionImplementor;
import org.jboss.logging.Logger;
/**
* @author Strong Liu
*/
class ReadOnlyEntityRegionAccessStrategy extends BaseEntityRegionAccessStrategy {
private static final Logger LOG = Logger.getLogger( ReadOnlyEntityRegionAccessStrategy.class );
ReadOnlyEntityRegionAccessStrategy(EntityRegionImpl region) {
super( region );
}
/**
* This cache is asynchronous hence a no-op
*/
@Override
public boolean insert(SessionImplementor session, Object key, Object value, Object version) throws CacheException {
return false; //wait until tx complete, see afterInsert().
}
@Override
public boolean afterInsert(SessionImplementor session, Object key, Object value, Object version) throws CacheException {
getInternalRegion().put( session, key, value ); //save into cache since the tx is completed
return true;
}
@Override
public void unlockItem(SessionImplementor session, Object key, SoftLock lock) throws CacheException {
evict( key );
}
/**
* Throws UnsupportedOperationException since this cache is read-only
*
* @throws UnsupportedOperationException always
*/
@Override
public boolean update(SessionImplementor session, Object key, Object value, Object currentVersion, Object previousVersion)
throws CacheException {
LOG.info( "Illegal attempt to update item cached as read-only : " + key );
throw new UnsupportedOperationException( "Can't write to a readonly object" );
}
/**
* Throws UnsupportedOperationException since this cache is read-only
*
* @throws UnsupportedOperationException always
*/
@Override
public boolean afterUpdate(SessionImplementor session, Object key, Object value, Object currentVersion, Object previousVersion, SoftLock lock)
throws CacheException {
LOG.info( "Illegal attempt to update item cached as read-only : " + key );
throw new UnsupportedOperationException( "Can't write to a readonly object" );
}
}