/*
* Copyright 2014-2016 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.integration.annotation;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Provides the message header {@code value} or {@code expression}.
*
* @author Artem Bilan
* @since 4.0
*/
@Target({ })
@Retention(RetentionPolicy.RUNTIME)
public @interface GatewayHeader {
/**
* @return The name of the header.
*/
String name();
/**
* @return The value for the header.
*/
String value() default "";
/**
* @return The {@code Expression} to be evaluated to produce a value for the header.
*/
String expression() default "";
}