/*
* Copyright 2002-2016 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.web.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.context.annotation.Scope;
import org.springframework.context.annotation.ScopedProxyMode;
import org.springframework.core.annotation.AliasFor;
import org.springframework.web.context.WebApplicationContext;
/**
* {@code @RequestScope} is a specialization of {@link Scope @Scope} for a
* component whose lifecycle is bound to the current web request.
*
* <p>Specifically, {@code @RequestScope} is a <em>composed annotation</em> that
* acts as a shortcut for {@code @Scope("request")} with the default
* {@link #proxyMode} set to {@link ScopedProxyMode#TARGET_CLASS TARGET_CLASS}.
*
* <p>{@code @RequestScope} may be used as a meta-annotation to create custom
* composed annotations.
*
* @author Sam Brannen
* @since 4.3
* @see SessionScope
* @see ApplicationScope
* @see org.springframework.context.annotation.Scope
* @see org.springframework.web.context.WebApplicationContext#SCOPE_REQUEST
* @see org.springframework.web.context.request.RequestScope
* @see org.springframework.stereotype.Component
* @see org.springframework.context.annotation.Bean
*/
@Target({ElementType.TYPE, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Scope(WebApplicationContext.SCOPE_REQUEST)
public @interface RequestScope {
/**
* Alias for {@link Scope#proxyMode}.
* <p>Defaults to {@link ScopedProxyMode#TARGET_CLASS}.
*/
@AliasFor(annotation = Scope.class)
ScopedProxyMode proxyMode() default ScopedProxyMode.TARGET_CLASS;
}