org.springframework.messaging.support.HeaderMapper Maven / Gradle / Ivy
/*
* Copyright 2002-2014 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.messaging.support;
import org.springframework.messaging.MessageHeaders;
/**
* Generic strategy interface for mapping {@link MessageHeaders} to and from other
* types of objects. This would typically be used by adapters where the "other type"
* has a concept of headers or properties (HTTP, JMS, AMQP, etc).
*
* @author Mark Fisher
* @since 4.1
* @param type of the instance to and from which headers will be mapped
*/
public interface HeaderMapper {
/**
* Map from the given {@link MessageHeaders} to the specified target message.
* @param headers the abstracted MessageHeaders
* @param target the native target message
*/
void fromHeaders(MessageHeaders headers, T target);
/**
* Map from the given target message to abstracted {@link MessageHeaders}.
* @param source the native target message
* @return the abstracted MessageHeaders
*/
MessageHeaders toHeaders(T source);
}