Oracle® Application Server Containers for J2EE Enterprise JavaBeans Developer's Guide
10g Release 2 (10.1.2) Part No. B15505-01 |
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All entity beans with CMP and CMR relationships must be involved in a transaction. As such, you cannot define any entity bean with a transaction attribute of NEVER, SUPPORTS, or NOT_REQUIRED as this would put the entity outside of a transaction.
For more information on how to use, configure, and manage transactions for entity beans, see the JTA chapter in the Oracle Application Server Containers for J2EE Services Guide.