[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2658?page=c... ] charbel commented on HHH-2658: ------------------------------ In my case, several parallel clients create such entities/tables and work with them (insert/get/update/delete/...). The number of clients is unkown, so i can't know at start time how many entities i need. With native sql mapping, you mean manipulate sql by myself insert/select/delete by batch using directly jdbc? In that case i loose lots of hibernate functionnalities. Whereas creating a new sessionfactory, for many reasons i found it a heavy solution to recreate a new configuration/sessionfactory, and the code would be something like "for this piece of code, use this sessionfactory, for this one, the other one..." And another thing, in my case i have a one-to-one relation, the new temporary entities pointing to other not temporary entities. -- 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

[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2658?page=c... ] charbel commented on HHH-2658: ------------------------------ They are temporary during a client request, or during a specific treatement. After, the entity definition with its table can be dropped. It can be each time a new entityname using definitions of another created one. If we can add new entity definition once the sessionfactory is created, then the pb is solved. About synchronization, of course this kind of functionnality should only be used in only some cases: - We can add only new entities. The new entities shouldn't affect the existing ones (example: new subclass...) - We can't modify existing ones. - Before removing entities, no other remaining ones should point to the one that we want to delete. And it is in charge of the developper to take care of synchronization between sessions using temporary objects and removal of entities in sessionfactory. Don't you think that we can have only simple cases of adding new entities to start ... -- 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