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Spring Framework example source code file (EntityManagerProxy.java)

This example Spring Framework source code file (EntityManagerProxy.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Spring Framework tags/keywords

entitymanager, entitymanager, entitymanagerproxy, entitymanagerproxy, illegalstateexception, illegalstateexception

The Spring Framework EntityManagerProxy.java source code

/*
 * Copyright 2002-2007 the original author or authors.
 *
 * 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.
 */

package org.springframework.orm.jpa;

import javax.persistence.EntityManager;

/**
 * Subinterface of {@link javax.persistence.EntityManager} to be implemented by
 * EntityManager proxies. Allows access to the underlying target EntityManager.
 *
 * <p>This interface is mainly intended for framework usage. Application code
 * should prefer the use of the {@link javax.persistence.EntityManager#getDelegate()}
 * method to access native functionality of the underlying resource.
 *
 * @author Juergen Hoeller
 * @since 2.5
 */
public interface EntityManagerProxy extends EntityManager {

	/**
	 * Return the underlying EntityManager that this proxy will delegate to.
	 * <p>In case of an extended EntityManager, this will be the associated
	 * raw EntityManager.
	 * <p>In case of a shared ("transactional") EntityManager, this will be
	 * the raw EntityManager that is currently associated with the transaction.
	 * Outside of a transaction, an IllegalStateException will be thrown.
	 * @return the underlying raw EntityManager (never <code>null)
	 * @throws IllegalStateException if no underlying EntityManager is available
	 */
	EntityManager getTargetEntityManager() throws IllegalStateException;

}

Other Spring Framework examples (source code examples)

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