https://github.com/spring-projects/spring-framework: Spring Beans (Spring IO)
  • Juergen Hoeller 
/*
 * 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
 *
 *      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.beans.factory.support;

import org.springframework.beans.factory.config.BeanPostProcessor;


Post-processor callback interface for merged bean definitions at runtime. BeanPostProcessor implementations may implement this sub-interface in order to post-process the merged bean definition (a processed copy of the original bean definition) that the Spring BeanFactory uses to create a bean instance. 
The postProcessMergedBeanDefinition method may for example introspect the bean definition in order to prepare some cached metadata before post-processing actual instances of a bean. It is also allowed to modify the bean definition but only for definition properties which are actually intended for concurrent modification. Essentially, this only applies to operations defined on the RootBeanDefinition itself but not to the properties of its base classes. 
Author:Juergen Hoeller
See Also:
Since:2.5
/**
 * Post-processor callback interface for <i>merged</i> bean definitions at runtime.
 * {@link BeanPostProcessor} implementations may implement this sub-interface in order
 * to post-process the merged bean definition (a processed copy of the original bean
 * definition) that the Spring {@code BeanFactory} uses to create a bean instance.
 *
 * <p>The {@link #postProcessMergedBeanDefinition} method may for example introspect
 * the bean definition in order to prepare some cached metadata before post-processing
 * actual instances of a bean. It is also allowed to modify the bean definition but
 * <i>only</i> for definition properties which are actually intended for concurrent
 * modification. Essentially, this only applies to operations defined on the
 * {@link RootBeanDefinition} itself but not to the properties of its base classes.
 *
 * @author Juergen Hoeller
 * @since 2.5
 * @see org.springframework.beans.factory.config.ConfigurableBeanFactory#getMergedBeanDefinition
 */
public interface MergedBeanDefinitionPostProcessor extends BeanPostProcessor {

	
Post-process the given merged bean definition for the specified bean.

Params:
  • beanDefinition – the merged bean definition for the bean
  • beanType – the actual type of the managed bean instance
  • beanName – the name of the bean
See Also:
/**
	 * Post-process the given merged bean definition for the specified bean.
	 * @param beanDefinition the merged bean definition for the bean
	 * @param beanType the actual type of the managed bean instance
	 * @param beanName the name of the bean
	 * @see AbstractAutowireCapableBeanFactory#applyMergedBeanDefinitionPostProcessors
	 */
	void postProcessMergedBeanDefinition(RootBeanDefinition beanDefinition, Class<?> beanType, String beanName);

	
A notification that the bean definition for the specified name has been reset,
and that this post-processor should clear any metadata for the affected bean.

The default implementation is empty.

Params:
  • beanName – the name of the bean
See Also:
Since:5.1
/**
	 * A notification that the bean definition for the specified name has been reset,
	 * and that this post-processor should clear any metadata for the affected bean.
	 * <p>The default implementation is empty.
	 * @param beanName the name of the bean
	 * @since 5.1
	 * @see DefaultListableBeanFactory#resetBeanDefinition
	 */
	default void resetBeanDefinition(String beanName) {
	}

}