spring Role 源码
spring Role 代码
文件路径：/spring-context/src/main/java/org/springframework/context/annotation/Role.java
/*
* Copyright 2002-2015 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.context.annotation;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.springframework.beans.factory.config.BeanDefinition;
/**
* Indicates the 'role' hint for a given bean.
*
* <p>May be used on any class directly or indirectly annotated with
* {@link org.springframework.stereotype.Component} or on methods
* annotated with {@link Bean}.
*
* <p>If this annotation is not present on a Component or Bean definition,
* the default value of {@link BeanDefinition#ROLE_APPLICATION} will apply.
*
* <p>If Role is present on a {@link Configuration @Configuration} class,
* this indicates the role of the configuration class bean definition and
* does not cascade to all @{@code Bean} methods defined within. This behavior
* is different from the behavior of the @{@link Lazy} annotation, for example.
*
* @author Chris Beams
* @since 3.1
* @see BeanDefinition#ROLE_APPLICATION
* @see BeanDefinition#ROLE_INFRASTRUCTURE
* @see BeanDefinition#ROLE_SUPPORT
* @see Bean
*/
@Target({ElementType.TYPE, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface Role {
/**
* Set the role hint for the associated bean.
* @see BeanDefinition#ROLE_APPLICATION
* @see BeanDefinition#ROLE_INFRASTRUCTURE
* @see BeanDefinition#ROLE_SUPPORT
*/
int value();
}
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