001/* 002 * Copyright 2002-2016 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.framework.autoproxy; 018 019import org.springframework.aop.TargetSource; 020import org.springframework.lang.Nullable; 021 022/** 023 * Implementations can create special target sources, such as pooling target 024 * sources, for particular beans. For example, they may base their choice 025 * on attributes, such as a pooling attribute, on the target class. 026 * 027 * <p>AbstractAutoProxyCreator can support a number of TargetSourceCreators, 028 * which will be applied in order. 029 * 030 * @author Rod Johnson 031 * @author Juergen Hoeller 032 */ 033@FunctionalInterface 034public interface TargetSourceCreator { 035 036 /** 037 * Create a special TargetSource for the given bean, if any. 038 * @param beanClass the class of the bean to create a TargetSource for 039 * @param beanName the name of the bean 040 * @return a special TargetSource or {@code null} if this TargetSourceCreator isn't 041 * interested in the particular bean 042 */ 043 @Nullable 044 TargetSource getTargetSource(Class<?> beanClass, String beanName); 045 046}