[hibernate-issues] [Hibernate-JIRA] Resolved: (HHH-4810) Persistent immutable and read-only entities are updated before being deleted

Persistent immutable and read-only entities are updated before being deleted ---------------------------------------------------------------------------- Key: HHH-4810 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4810 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.5.0-Beta-3 Reporter: Gail Badner Assignee: Gail Badner Fix For: 3.5.0-CR-2 Read-only and immutable entities that are in persistent state when deleted are updated before being deleted. Read-only and immutable entities that are detached when deleted are not updated before being deleted. In the following examples, Contract is an immutable class. Example 1: Immutable entity is updated with the same property values as just read s = openSession(); t = s.beginTransaction(); c = (Contract) s.get( Contract.class, c.getId() ); s.delete(c); t.commit(); s.close(); Hibernate: update Contract set customerName=?, type=? where id=? 17:59:32,640 TRACE StringType:151 - binding 'gavin' to parameter: 1 17:59:32,640 TRACE StringType:151 - binding 'phone' to parameter: 2 17:59:32,641 TRACE LongType:151 - binding '1' to parameter: 3 ... (immutable collection, Contract.getVariations() is also updated and deleted) Hibernate: delete from Contract where id=? 17:59:32,654 TRACE LongType:151 - binding '1' to parameter: 1 ------------------------------------------------------------------------- Example 2: Immutable entity is updated with a new property value before being deleted s = openSession(); t = s.beginTransaction(); c = (Contract) s.get( Contract.class, c.getId() ); c.setCustomerName( "Sherman" ); s.delete(c); t.commit(); s.close(); Hibernate: update Contract set customerName=?, type=? where id=? 17:59:33,221 TRACE StringType:151 - binding 'Sherman' to parameter: 1 17:59:33,221 TRACE StringType:151 - binding 'phone' to parameter: 2 17:59:33,222 TRACE LongType:151 - binding '6' to parameter: 3 ... (immutable collection, Contract.getVariations() is also updated and deleted) Hibernate: delete from Contract where id=? 17:59:33,242 TRACE LongType:151 - binding '6' to parameter: 1 Example 3: No update when the immutable entity is detached when it is deleted. s = openSession(); t = s.beginTransaction(); s.delete( c ); t.commit(); s.close(); ... (immutable collection, Contract.getVariations() is deleted) Hibernate: delete from Contract where id=? 17:59:33,337 TRACE LongType:151 - binding '8' to parameter: 1