infra.beans.factory.config.DestructionAwareBeanPostProcessor Maven / Gradle / Ivy
/*
* Copyright 2017 - 2024 the original author or authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see [https://www.gnu.org/licenses/]
*/
package infra.beans.factory.config;
import infra.beans.factory.DisposableBean;
/**
* Subinterface of {@link BeanPostProcessor} that adds a before-destruction
* callback.
*
*
* The typical usage will be to invoke custom destruction callbacks on specific
* bean types, matching corresponding initialization callbacks.
*
* @author Juergen Hoeller
* @author TODAY
* 2019-12-10 00:05
* @since 2.1.7
*/
public interface DestructionAwareBeanPostProcessor extends BeanPostProcessor {
/**
* Apply this BeanPostProcessor to the given bean instance before its
* destruction, e.g. invoking custom destruction callbacks.
*
* Like DisposableBean's {@code destroy} and a custom destroy method, this
* callback will only apply to beans which the container fully manages the
* lifecycle for. This is usually the case for singletons and scoped beans.
*
* @param bean the bean instance to be destroyed
* @param beanName the Bean name of the bean
* @see DisposableBean#destroy()
*/
void postProcessBeforeDestruction(Object bean, String beanName);
/**
* Determine whether the given bean instance requires destruction by this
* post-processor.
*
* The default implementation returns {@code true}. If a pre-5 implementation of
* {@code DestructionAwareBeanPostProcessor} does not provide a concrete
* implementation of this method, IOC silently assumes {@code true} as well.
*
* @param bean the bean instance to check
* @return {@code true} if {@link #postProcessBeforeDestruction} is supposed to
* be called for this bean instance eventually, or {@code false} if not
* needed
*/
default boolean requiresDestruction(Object bean) {
return true;
}
}