1. Are there any tools to aid in debugging EJB code? SIne an EJB is pretty far
removed from tier 1, where most IDEs focus, I'm not sure how you'd debug
problems or code in an EJB.
2. Does the requirement for an Entity bean to hae a PrimaryKey mean that your
database table has to have a matching primary key or can you define a primary
key for the bean on any column? Thisis particularly an issue if the database is
an OODBMS, which doesn't model data in columns.
3. I've read that on the oone hand, Entity beans should not do transaction
demarcation tyhemsevles but that on the other hand, a transaction ends when an
entity bean's method ends, as opposed to a stateful session bean's method, which
may return in the middle of a transaction. If the transaction must end at the
endof the entity bean's mehtod, but the entity bean is not supposed to do its
own transaction demarcation, there's a problem. I don't see how both of those
could be tgrue at the same time.
4. I'm reading contradictory things about JTS. One thing I read said that it
implements OTS and is a competle transaction manager. Another thing I read said
that it implements OTS and acts as a layer on top of a transaction manager, like
Tuxedo. Which is it?
Thanks.
Ken
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