JMS вопросы и ответы для интервью
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Вопрос 61. What is JMS consumer?
A JMS client that receives messages.
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Вопрос 62. What is JMS message?
An object that contains the data being transferred between JMS clients.
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Вопрос 63. What is JMS queue?
A staging area that contains messages that have been sent and are waiting to be read. Note that, contrary to what the name queue suggests, messages don't have to be delivered in the order sent. If the message driven bean pool contains more than one instance then messages can be processed concurrently and thus it is possible that a later message is processed sooner than an earlier one. A JMS queue guarantees only that each message is processed only once.
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Вопрос 64. What is JMS topic?
A distribution mechanism for publishing messages that are delivered to multiple subscribers.
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Самое полезное по оценкам пользователей:
- How many messaging models do JMS provide for and what are they?
- What is JMS (Java Messaging Service)?
- What are the different types of messages available in the JMS API?
- How the JMS is different from RPC?
- What are the basic advantages of JMS?