In the previous article, Hibernate Bytecode Enhancement. Dirty Tracking, I explained how to optimize Hibernate’s Dirty Tracking mechanism.
The bytecode enhancement, however, can be achieved via one more property: association management. When this feature is enabled, Hibernate will take care of automatically updating the “other side” of a bidirectional relation with a reverse mapping defined when one side changes. Similar to Dirty Tracking, this will as well result in additional changes made to the bytecode of the entities.