001/* 002 * Copyright 2002-2018 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.beans.factory.config; 018 019import java.beans.PropertyDescriptor; 020import java.lang.reflect.Constructor; 021 022import org.springframework.beans.BeansException; 023import org.springframework.beans.PropertyValues; 024import org.springframework.lang.Nullable; 025 026/** 027 * Adapter that implements all methods on {@link SmartInstantiationAwareBeanPostProcessor} 028 * as no-ops, which will not change normal processing of each bean instantiated 029 * by the container. Subclasses may override merely those methods that they are 030 * actually interested in. 031 * 032 * <p>Note that this base class is only recommendable if you actually require 033 * {@link InstantiationAwareBeanPostProcessor} functionality. If all you need 034 * is plain {@link BeanPostProcessor} functionality, prefer a straight 035 * implementation of that (simpler) interface. 036 * 037 * @author Rod Johnson 038 * @author Juergen Hoeller 039 * @since 2.0 040 */ 041public abstract class InstantiationAwareBeanPostProcessorAdapter implements SmartInstantiationAwareBeanPostProcessor { 042 043 @Override 044 @Nullable 045 public Class<?> predictBeanType(Class<?> beanClass, String beanName) throws BeansException { 046 return null; 047 } 048 049 @Override 050 @Nullable 051 public Constructor<?>[] determineCandidateConstructors(Class<?> beanClass, String beanName) throws BeansException { 052 return null; 053 } 054 055 @Override 056 public Object getEarlyBeanReference(Object bean, String beanName) throws BeansException { 057 return bean; 058 } 059 060 @Override 061 @Nullable 062 public Object postProcessBeforeInstantiation(Class<?> beanClass, String beanName) throws BeansException { 063 return null; 064 } 065 066 @Override 067 public boolean postProcessAfterInstantiation(Object bean, String beanName) throws BeansException { 068 return true; 069 } 070 071 @Override 072 public PropertyValues postProcessProperties(PropertyValues pvs, Object bean, String beanName) 073 throws BeansException { 074 075 return null; 076 } 077 078 @Deprecated 079 @Override 080 public PropertyValues postProcessPropertyValues( 081 PropertyValues pvs, PropertyDescriptor[] pds, Object bean, String beanName) throws BeansException { 082 083 return pvs; 084 } 085 086 @Override 087 public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException { 088 return bean; 089 } 090 091 @Override 092 public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException { 093 return bean; 094 } 095 096}