Java tutorial
/* * Copyright 2002-2019 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.integration.mapping; import java.util.Map; 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 * * @param <T> type of the instance to and from which headers will be mapped. */ public interface HeaderMapper<T> { void fromHeaders(MessageHeaders headers, T target); Map<String, Object> toHeaders(T source); }