/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008-2011, 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.spi.entry;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.persister.entity.EntityPersister;
/**
* @author Gavin King
*/
public class StructuredCacheEntry implements CacheEntryStructure {
private EntityPersister persister;
public StructuredCacheEntry(EntityPersister persister) {
this.persister = persister;
}
public Object destructure(Object item, SessionFactoryImplementor factory) {
Map map = (Map) item;
boolean lazyPropertiesUnfetched = ( (Boolean) map.get("_lazyPropertiesUnfetched") ).booleanValue();
String subclass = (String) map.get("_subclass");
Object version = map.get("_version");
EntityPersister subclassPersister = factory.getEntityPersister(subclass);
String[] names = subclassPersister.getPropertyNames();
Serializable[] state = new Serializable[names.length];
for ( int i=0; i<names.length; i++ ) {
state[i] = (Serializable) map.get( names[i] );
}
return new CacheEntry(state, subclass, lazyPropertiesUnfetched, version);
}
public Object structure(Object item) {
CacheEntry entry = (CacheEntry) item;
String[] names = persister.getPropertyNames();
Map map = new HashMap(names.length+2);
map.put( "_subclass", entry.getSubclass() );
map.put( "_version", entry.getVersion() );
map.put( "_lazyPropertiesUnfetched", entry.areLazyPropertiesUnfetched() ? Boolean.TRUE : Boolean.FALSE );
for ( int i=0; i<names.length; i++ ) {
map.put( names[i], entry.getDisassembledState()[i] );
}
return map;
}
}