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Hibernate's core ORM functionality

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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.internal;

import org.hibernate.cache.spi.CacheKeysFactory;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.engine.spi.SharedSessionContractImplementor;
import org.hibernate.persister.collection.CollectionPersister;
import org.hibernate.persister.entity.EntityPersister;

/**
 * Factory that does not fill in the entityName or role
 *
 * @author Radim Vansa <[email protected]>
 */
public class SimpleCacheKeysFactory implements CacheKeysFactory {
	public static final String SHORT_NAME = "simple";
	public static CacheKeysFactory INSTANCE = new SimpleCacheKeysFactory();

	@Override
	public Object createCollectionKey(Object id, CollectionPersister persister, SessionFactoryImplementor factory, String tenantIdentifier) {
		return id;
	}

	@Override
	public Object createEntityKey(Object id, EntityPersister persister, SessionFactoryImplementor factory, String tenantIdentifier) {
		return id;
	}

	@Override
	public Object createNaturalIdKey(Object[] naturalIdValues, EntityPersister persister, SharedSessionContractImplementor session) {
		// natural ids always need to be wrapped
		return new NaturalIdCacheKey(naturalIdValues, persister.getPropertyTypes(), persister.getNaturalIdentifierProperties(), null, session);
	}

	@Override
	public Object getEntityId(Object cacheKey) {
		return cacheKey;
	}

	@Override
	public Object getCollectionId(Object cacheKey) {
		return cacheKey;
	}

	@Override
	public Object[] getNaturalIdValues(Object cacheKey) {
		return ((NaturalIdCacheKey) cacheKey).getNaturalIdValues();
	}
}