//$Id: StructuredMapCacheEntry.java 5707 2005-02-13 12:47:01Z oneovthafew $
package org.hibernate.cache.entry;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.hibernate.engine.SessionFactoryImplementor;
/**
* @author Gavin King
*/
public class StructuredMapCacheEntry implements CacheEntryStructure {
public Object structure(Object item) {
CollectionCacheEntry entry = (CollectionCacheEntry) item;
Serializable[] state = entry.getState();
Map map = new HashMap(state.length);
for ( int i=0; i<state.length; ) {
map.put( state[i++], state[i++] );
}
return map;
}
public Object destructure(Object item, SessionFactoryImplementor factory) {
Map map = (Map) item;
Serializable[] state = new Serializable[ map.size()*2 ];
int i=0;
Iterator iter = map.entrySet().iterator();
while ( iter.hasNext() ) {
Map.Entry me = (Map.Entry) iter.next();
state[i++] = (Serializable) me.getKey();
state[i++] = (Serializable) me.getValue();
}
return new CollectionCacheEntry(state);
}
}
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