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ejb question

 
Timber Lee
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Which one of the following statements correctly describes the function of the <message-selector> element in the MDB deployment descriptor?
Choice 1
It specifies which type of messages (TextMessage, StreamMessage, etc.) will be routed by JMS to the MDB.
Choice 2
It specifies a regular expression used by JMS to determine which messages to route to the MDB.
Choice 3
It specifies which message header properties are selected by the container to be passed to the MDB.
Choice 4
It specifies the SQL-92 compatible query used by JMS to determine which messages to route to the MDB.
Choice 5
It specifies an Object Query Language (OQL) compatible query used by JMS to determine which messages to route to the MDB.
 
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