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Question in MDB

somkiat puisungnoen
Ranch Hand

Joined: Jul 04, 2003
Posts: 1312
Which the following statement are true about MDBs invoked in transaction?
1. MDB must commit or rollback transaction before the completion of onMessage() method.
2. MDB can not use BMT demacation.
3. If a transaction of a CMT bean is rolled back, the message hadling also rolled back.
My answer 1, 3 are correct. That all right?
Please, let me .


SCJA,SCJP,SCWCD,SCBCD,SCEA I
Java Developer, Thailand
Paramita Verghese
Greenhorn

Joined: Feb 18, 2002
Posts: 20
Originally posted by somkiat puisungnoen:
Which the following statement are true about MDBs invoked in transaction?
1. MDB must commit or rollback transaction before the completion of onMessage() method.
2. MDB can not use BMT demacation.
3. If a transaction of a CMT bean is rolled back, the message hadling also rolled back.
My answer 1, 3 are correct. That all right?
Please, let me .


Yes Somkiat, 1 & 3 are correct. 2 is false, coz MDBs sure can use BMT.
As for Option 3, I wouldn't say that message handling is rolled back, rather, the message acknowledgement is never sent to the JMS destination


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subject: Question in MDB