001/* 002 * Copyright 2002-2014 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.aop.target; 018 019import org.springframework.beans.BeansException; 020 021/** 022 * {@link org.springframework.aop.TargetSource} implementation that 023 * creates a new instance of the target bean for each request, 024 * destroying each instance on release (after each request). 025 * 026 * <p>Obtains bean instances from its containing 027 * {@link org.springframework.beans.factory.BeanFactory}. 028 * 029 * @author Rod Johnson 030 * @author Juergen Hoeller 031 * @see #setBeanFactory 032 * @see #setTargetBeanName 033 */ 034@SuppressWarnings("serial") 035public class PrototypeTargetSource extends AbstractPrototypeBasedTargetSource { 036 037 /** 038 * Obtain a new prototype instance for every call. 039 * @see #newPrototypeInstance() 040 */ 041 @Override 042 public Object getTarget() throws BeansException { 043 return newPrototypeInstance(); 044 } 045 046 /** 047 * Destroy the given independent instance. 048 * @see #destroyPrototypeInstance 049 */ 050 @Override 051 public void releaseTarget(Object target) { 052 destroyPrototypeInstance(target); 053 } 054 055 @Override 056 public String toString() { 057 return "PrototypeTargetSource for target bean with name '" + getTargetBeanName() + "'"; 058 } 059 060}