spring RestartScopeInitializer 源码
springboot RestartScopeInitializer 代码
文件路径：/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/restart/RestartScopeInitializer.java
/*
* Copyright 2012-2019 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.devtools.restart;
import org.springframework.beans.factory.ObjectFactory;
import org.springframework.beans.factory.config.Scope;
import org.springframework.context.ApplicationContextInitializer;
import org.springframework.context.ConfigurableApplicationContext;
/**
* Support for a 'restart' {@link Scope} that allows beans to remain between restarts.
*
* @author Phillip Webb
* @since 1.3.0
*/
public class RestartScopeInitializer implements ApplicationContextInitializer<ConfigurableApplicationContext> {
@Override
public void initialize(ConfigurableApplicationContext applicationContext) {
applicationContext.getBeanFactory().registerScope("restart", new RestartScope());
}
/**
* {@link Scope} that stores beans as {@link Restarter} attributes.
*/
private static class RestartScope implements Scope {
@Override
public Object get(String name, ObjectFactory<?> objectFactory) {
return Restarter.getInstance().getOrAddAttribute(name, objectFactory);
}
@Override
public Object remove(String name) {
return Restarter.getInstance().removeAttribute(name);
}
@Override
public void registerDestructionCallback(String name, Runnable callback) {
}
@Override
public Object resolveContextualObject(String key) {
return null;
}
@Override
public String getConversationId() {
return null;
}
}
}
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- 本文标签： Java Spring Spring Boot
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