Notifier makes it possible to uncouple senders and receivers ( subscribers ) of messages.
事件通知類對于每一種消息能夠區(qū)分誰是發(fā)送者,誰是接收者.
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Notifier makes it possible to uncouple senders and receivers of messages.
事件通知可以區(qū)分消息的發(fā)送者和接收者.
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The notifier is responsible for message routing; for each type of message, a different notifier exists.
事件通知類負(fù)責(zé)消息的路由, 對于每種不同類型的消息存在有一種不同的通知.
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