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[Teneo] No primary key in table for multi-valued string attribute [message #605473]

Tue, 21 September 2010 15:42

Eclipse User

I have an EClass "A" containing a multivalued, EString attribute named "tags". Teneo/Hibernate generate a A_tags table with two columns: an A_tags_id with the A's id and the EString tag.

How can I make sure that this table has a primary key since this needs to be replicated by the underlying db configuration?

Re: [Teneo] No primary key in table for multi-valued string attribute [message #628837 is a reply to message #605473]

Fri, 24 September 2010 07:33

Eclipse User

I found a Teneo property teneo.mapping.map_all_lists_as_idbag that seems relevant , but had no effect on my mappings. After a brief search through the source code, this property seems to be used only for EReference annotations, but in my case I have a multivalued EAttribute

It seems that I would like teneo to generate the following:

<class>
...
     <idbag name="dependentObjects" table="idbag_dependent_objects" lazy="false"> 
       <collection-id column="id" type="java.lang.String"> 
         <generator class="uuid"/> 
       </collection-id> 
       <key column="main_id" /> 
       <element type="java.lang.String" column="val"/> 
     </idbag> 
</class>

Instead of a simple bag with only a FK.

Is that supported? Any ideas on how to get a proper PK generated for this multivalued EAttribute table?

Re: [Teneo] No primary key in table for multi-valued string attribute [message #628855 is a reply to message #605473]

Fri, 24 September 2010 09:12

Eclipse User

Thanks for listening Smile

I resolved the issue by adding an @IdBag(generator="uuid",type="java.lang.String") to my EAttribute.

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