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Thread: How many kinds of enterprise beans do Java has?

  1. #1
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    How many kinds of enterprise beans do Java has?

    Java (J2EE) has three kinds of Java beans:
    1. Session beans -represent transient conversations with clients. The data will be gone after a session is over
    2. Entity beans -represent persistent data and let to store data in a database.
    3. Message driven beans - combining features of a session bean and Java Message Service (JMS). They provide possibility to receive asynchronous JMS messages







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  2. #2
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    Enterprise Bean Type
    Purpose
    Session
    Performs a task for a client; optionally may implement a web service
    Message-Driven
    Acts as a listener for a particular messaging type, such as the Java
    Message Service API


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