i set the following mapping

but for the ITEM_IMAGE i added additional versional column

when i try to save the item with the added filename it rises exception saying that version cant be null while executing the following DML

so it ignores the version column specified in the mapping


is there soulution to the problem, because i also using that ITEM_IMAGE as an entity which should have a version coulumn?[/code]

<version> is a tag used in association with an optimistic-locking strategy. It is generated automatically by the database in most cases. There is a "generated" property for the version that defaults to "never". You have to tell Hibernate that it will be generated by the database. There is a discussion of this in section 5.1.7 of the Reference Manual (version 3.1.1). You have not told it that the database will generate it, so it has to be filled in by some other means.

Even if i explicitly specify that property with "always" or "never" value, it still doesn't help. The DML remains the same with no mention of version field. The main point is that i want hibernate to generate that value automatically