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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 .
*/
package org.hibernate.cache.spi.entry;
import java.io.Serializable;
import org.hibernate.collection.spi.PersistentCollection;
import org.hibernate.internal.util.collections.ArrayHelper;
import org.hibernate.persister.collection.CollectionPersister;
/**
* Cacheable representation of persistent collections
*
* @author Gavin King
*/
public class CollectionCacheEntry implements Serializable {
private final Serializable state;
/**
* Constructs a CollectionCacheEntry
*
* @param collection The persistent collection instance
* @param persister The collection persister
*/
public CollectionCacheEntry(PersistentCollection collection, CollectionPersister persister) {
this.state = collection.disassemble( persister );
}
CollectionCacheEntry(Serializable state) {
this.state = state;
}
/**
* Retrieve the cached collection state.
*
* @return The cached collection state.
*/
public Serializable[] getState() {
//TODO: assumes all collections disassemble to an array!
return (Serializable[]) state;
}
/**
* Assembles the collection from the cached state.
*
* @param collection The persistent collection instance being assembled
* @param persister The collection persister
* @param owner The collection owner instance
*/
public void assemble(
final PersistentCollection collection,
final CollectionPersister persister,
final Object owner) {
collection.initializeFromCache( persister, state, owner );
collection.afterInitialize();
}
@Override
public String toString() {
return "CollectionCacheEntry" + ArrayHelper.toString( getState() );
}
}