SendStatus.java

/**
 * Copyright (C) 2010-2013 Alibaba Group Holding Limited
 *
 * 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 com.alibaba.rocketmq.client.producer;

/**
 * 这4种状态都表示消息已经成功到达Master
 * 
 * @author shijia.wxr<vintage.wang@gmail.com>
 * @since 2013-7-25
 */
public enum SendStatus {
    // 消息发送成功
    SEND_OK,
    // 消息发送成功，但是服务器刷盘超时，消息已经进入服务器队列，只有此时服务器宕机，消息才会丢失
    FLUSH_DISK_TIMEOUT,
    // 消息发送成功，但是服务器同步到Slave时超时，消息已经进入服务器队列，只有此时服务器宕机，消息才会丢失
    FLUSH_SLAVE_TIMEOUT,
    // 消息发送成功，但是此时slave不可用，消息已经进入服务器队列，只有此时服务器宕机，消息才会丢失
    SLAVE_NOT_AVAILABLE
}