Spring Framework example source code file (ScopedBeanInterceptor.java)

This example Spring Framework source code file (ScopedBeanInterceptor.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

emptyinterceptor, object, object, scopedbeaninterceptor, scopedbeaninterceptor, scopedobject, scopedobject, string, string

The Spring Framework ScopedBeanInterceptor.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.hibernate3.support;

import org.hibernate.EmptyInterceptor;

import org.springframework.aop.scope.ScopedObject;
import org.springframework.aop.support.AopUtils;

/**
 * Hibernate3 interceptor used for getting the proper entity name for scoped
 * beans. As scoped bean classes are proxies generated at runtime, they are
 * unrecognized by the persisting framework. Using this interceptor, the
 * original scoped bean class is retrieved end exposed to Hibernate for
 * persisting.
 *
 * <p>Usage example:
 *
 * <pre>
 * <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
 *   ...
 *   <property name="entityInterceptor">
 *     <bean class="org.springframework.orm.hibernate3.support.ScopedBeanInterceptor"/>
 *   </property>
 * </bean></pre>
 *
 * @author Costin Leau
 * @author Juergen Hoeller
 * @since 2.0
 */
public class ScopedBeanInterceptor extends EmptyInterceptor {

	public String getEntityName(Object entity) {
		if (entity instanceof ScopedObject) {
			// Determine underlying object's type.
			Object targetObject = ((ScopedObject) entity).getTargetObject();
			return AopUtils.getTargetClass(targetObject).getName();
		}

		// Any other object: delegate to the default implementation.
		return super.getEntityName(entity);
	}

}