//$Id: StructuredCacheEntry.java 7764 2005-08-05 16:16:46Z oneovthafew $
package org.hibernate.cache.entry;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import org.hibernate.engine.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;
}
}
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