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Question on Transactions

Pavan Sambare

Joined: Aug 21, 2006
Posts: 23
Let's say I have an MDB which has BMP and in the onMessage of the MDB, I am calling a method in an Entity Bean with CMP.
Now my question is, since the method of the Entity Bean has been called in context of the user transaction of the MDB, will a new transaction be created by the container for the Entity bean or will it continue with the same User transaction of the MDB?

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Jeanne Boyarsky
author & internet detective

Joined: May 26, 2003
Posts: 32298

It depends on the settings in your deployment descriptor. For example, if the EJB is set to use RequiresNew, a new transaction will be created. If it uses Required or Supports, the existing transaction will be used.

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It is sorta covered in the JavaRanch Style Guide.
subject: Question on Transactions
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