org.broadleafcommerce.common.util.HibernateUtils.java Source code

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Here is the source code for org.broadleafcommerce.common.util.HibernateUtils.java

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/*
 * #%L
 * BroadleafCommerce Common Libraries
 * %%
 * Copyright (C) 2009 - 2013 Broadleaf Commerce
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *       http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */
package org.broadleafcommerce.common.util;

import org.hibernate.proxy.HibernateProxy;
import org.hibernate.proxy.LazyInitializer;

/**
 * Hibernate convenience methods
 *
 * @author Philip Baggett (pbaggett)
 */
public class HibernateUtils {
    /**
     * <p>Ensure a domain object is an actual persisted object and not a Hibernate proxy object by getting its real implementation.
     *
     * <p>This is primarily useful when retrieving a lazy loaded object that has been subclassed and you have the intention of casting it.
     *
     * @param t the domain object to deproxy
     * @return the actual persisted object or the passed in object if it is not a Hibernate proxy
     */
    public static <T> T deproxy(T t) {
        if (t instanceof HibernateProxy) {
            HibernateProxy proxy = (HibernateProxy) t;
            LazyInitializer lazyInitializer = proxy.getHibernateLazyInitializer();
            return (T) lazyInitializer.getImplementation();
        }
        return t;
    }
}