rocketmq-spring-boot/src/main/java/org/apache/rocketmq/spring/core/RocketMQReplyListener.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.rocketmq.spring.core;

/**
 * The consumer supporting request-reply should implement this interface.
 *
 * @param <T> the type of data received by the listener
 * @param <R> the type of data replying to producer
 */
public interface RocketMQReplyListener<T, R> {
    /**
     * @param message data received by the listener
     * @return data replying to producer
     */
    R onMessage(T message);
}