Although isEnforceReadOly is true, Statement might be not READ ONLY if definition.isReadOnly is not true. So I replaced && to || to use the flag as named "Enforced".
Comment From: mp911de
The check deliberately verifies both conditions to be true. Enabling read only behavior on the database requires another SQL statement to be issued and in cases where transactions consist of a single statement, issuing another one leads to significant overhead compared to the unit of work.
Therefore, we provide this optimization as opt-in feature that needs to be activated on the transaction definition and the transaction manager. We have the same arrangement on the JDBC transaction manager variant.