spring SpringApplicationShutdownHandlers 源码
springboot SpringApplicationShutdownHandlers 代码
文件路径：/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/SpringApplicationShutdownHandlers.java
/*
* Copyright 2012-2021 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.boot;
import org.springframework.context.ApplicationContext;
/**
* Interface that can be used to add or remove code that should run when the JVM is
* shutdown. Shutdown handlers are similar to JVM {@link Runtime#addShutdownHook(Thread)
* shutdown hooks} except that they run sequentially rather than concurrently.
* <p>
* Shutdown handlers are guaranteed to be called only after registered
* {@link ApplicationContext} instances have been closed and are no longer active.
*
* @author Phillip Webb
* @author Andy Wilkinson
* @since 2.5.1
* @see SpringApplication#getShutdownHandlers()
* @see SpringApplication#setRegisterShutdownHook(boolean)
*/
public interface SpringApplicationShutdownHandlers {
/**
* Add an action to the handlers that will be run when the JVM exits.
* @param action the action to add
*/
void add(Runnable action);
/**
* Remove a previously added an action so that it no longer runs when the JVM exits.
* @param action the action to remove
*/
void remove(Runnable action);
}
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