可在上实现哪些功能?
我提出的主要要求是,消费者不能就某个议题竞争单一信息。 例如,我有一位客户发表“服务中心”活动。 一些系统支持这些活动。 其中一个系统是实际使用电话路线,有多个运行情况。 如果每个案件都签了字,则电话将送达所有案件。 然而,如果电文被贴上电文,而且所有电文都在同一电线上消耗,那么只有一人才会收到电文,并向该经营者发出呼吁。 如果出版申请从专题转换成单点,则电话中心的工作,但其他所有用户都不会收到信息。
解决办法(如在Web Sphere MQ中实施)是建立关于这个主题的行政订阅,并向所有应用情况都消耗的一个问题发出信息。 因此,生产者口号仍然是出版商,所有有活力的用户都仍然收到电文副本,电传中心照相,每个已公布电文的单一一例竞争。
而且,你可以就某个专题使用浏览器,而你可以坐在一旁。 如果有的话题,你可以确定挑选人,以过滤被退回的信息,但可以浏览。 各位可以浏览,重新打开浏览点,然后浏览。
如果你在问讯中发出信息,而且没有收到任何信息,信息就仍然被问。 如果你向某个专题发出信息,没有活跃的用户或耐久的订阅,信息就会被抛弃。 因此,电文中的信息自然是持久的,而关于某个专题的信息可能或可能不会。
从纯粹的JMS的角度来看,如果你不试图浏览,那么问答和专题既是目的地,也是互换的。 申请可能不知道其开标的目的地是个问题,还是一个专题,除非申请在运行时间使用实例Of()来发现。
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