Bug with list when rearranging - treat it as urgent --------------------------------------------------- Key: HHH-3645 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3645 Project: Hibernate Core Issue Type: Bug Components: core Affects Versions: 3.3.1 Reporter: leela Class A has a child list specifying an association to another class B. Table A AId Table B BId Table C(Association Table with 3 columns) AId(Id of Table A) BId(Id of Table B) SeqNo OtherColumn1 OtherColumn2 When I rearrange the child list, obviously the index will be changing. Initially the table C was mapped like this before rearranging. A1 B1 0 XX YY A1 B2 1 YY ZZ A1 B3 2 ZZ XX After rearranging the java list contains : A1 B2 0 XX YY A1 B1 1 XX YY A2 B3 2 ZZ XX But when this list is getting persisted, hibernate is trying to do an update by seq no update tablec set table Bid = B2 where Aid = A1 and SeqNo = 0 It fails to persit because since we had set a unique composite index on AId and BId. That means hibernate was trying to persist like this, that caused the failures. A1 B2 0 A1 B2 1 A1 B3 2 Here is my hibernate mapping in classA mapping file. <list name="assocList" lazy="true" access="field" cascade="save-update" outer-join="false" table="tablec"> <key column="aid" not-null="true" unique="false"/> <list-index column="seqno"/> <composite-element class="ClassC"> <many-to-one name="ClassB" column="bid" lazy="proxy"/> <property ..../> <property ..../> </composite-element> </list> Should not hibernate supposed to delete and reinsert the child elements? Then what is the solution for this? Is not this a bug? -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira