Cayenne User Documentation
Configuring Transactional Behavior

Each DataDomain can be configured to explicitly commit/rollback its transactions or to rely on deployment container to do that. This is done by checking or unchecking "Container-Managed Transactions" checkbox.

By default "Container-Managed Transactions" is unchecked, letting Cayenne to handle its transactions. Check this checkbox when using Cayenne under container-managed transactions control, i.e. within EJB environment.

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