/*
* Copyright 2002-2017 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.stereotype;
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;
/**
* Indicates that an annotated class is a "Controller" (e.g. a web controller).
*
* <p>This annotation serves as a specialization of {@link Component @Component},
* allowing for implementation classes to be autodetected through classpath scanning.
* It is typically used in combination with annotated handler methods based on the
* {@link org.springframework.web.bind.annotation.RequestMapping} annotation.
*
* @author Arjen Poutsma
* @author Juergen Hoeller
* @since 2.5
* @see Component
* @see org.springframework.web.bind.annotation.RequestMapping
* @see org.springframework.context.annotation.ClassPathBeanDefinitionScanner
*/
@
Target({
ElementType.
TYPE})
@
Retention(
RetentionPolicy.
RUNTIME)
@
Documented
@
Component
public @interface
Controller {
/**
* The value may indicate a suggestion for a logical component name,
* to be turned into a Spring bean in case of an autodetected component.
* @return the suggested component name, if any (or empty String otherwise)
*/
String value() default "";
}