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• MessageQueueSelector.java

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com.aliyun.openservices.ons.api.order.MessageQueueSelector Maven / Gradle / Ivy

package com.aliyun.openservices.ons.api.order;

import com.aliyun.openservices.ons.api.Message;


/**
 * 发送顺序消息，应用可以自由选择发往哪个队列
 */
public interface MessageQueueSelector {
    /**
     * 发送顺序消息，队列选择方法
     *
     * @param queueTotal
     *         队列总数
     * @param msg
     *         消息
     * @param arg
     *         由send方法传入的自定义参数
     *
     * @return 发往具体队列的Index
     */
    public int select(final int queueTotal, final Message msg, final Object arg);
}