/max
Fredrik Larsson wrote:
Hello.
I would like to use hibernate and especially the criteria interface for an application that my company will be building. The problem is that the application will work against a legacy database (udb on mainframe) and that the tables contains no column marked as a primary key. Essentially the database seems to be a replacement for a flat file and it is structured as a csv-file without any normalization or any other feature one usually finds in a relational datamodel.
My proof of concept showed some problems when I have no reliable primary key column. 1) Xdoclet throws an exception and refuses to generate hbm.xml files for classes that do not have an @hibernate.id getter/setter. 2) Manually fixing a correct hbm.xml without an id column will result in a list filled with null values (it does have a correct length though :-) ) when i use the Criteria.list() method to get an answer to a query.
Is there a solution to this problem? I could not find any documentation that described how to handle tables without primary keys.
Thanks in advance Fredrik
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