spring InitializingBean 源码
spring InitializingBean 代码
文件路径：/spring-beans/src/main/java/org/springframework/beans/factory/InitializingBean.java
/*
* Copyright 2002-2018 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
*
* https://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.beans.factory;
/**
* Interface to be implemented by beans that need to react once all their properties
* have been set by a {@link BeanFactory}: e.g. to perform custom initialization,
* or merely to check that all mandatory properties have been set.
*
* <p>An alternative to implementing {@code InitializingBean} is specifying a custom
* init method, for example in an XML bean definition. For a list of all bean
* lifecycle methods, see the {@link BeanFactory BeanFactory javadocs}.
*
* @author Rod Johnson
* @author Juergen Hoeller
* @see DisposableBean
* @see org.springframework.beans.factory.config.BeanDefinition#getPropertyValues()
* @see org.springframework.beans.factory.support.AbstractBeanDefinition#getInitMethodName()
*/
public interface InitializingBean {
/**
* Invoked by the containing {@code BeanFactory} after it has set all bean properties
* and satisfied {@link BeanFactoryAware}, {@code ApplicationContextAware} etc.
* <p>This method allows the bean instance to perform validation of its overall
* configuration and final initialization when all bean properties have been set.
* @throws Exception in the event of misconfiguration (such as failure to set an
* essential property) or if initialization fails for any other reason
*/
void afterPropertiesSet() throws Exception;
}
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