> Hi everyone,
>
> I'll open my question by saying that I'm really impressed by the state
> of this project. I've been looking for a good OR Mapping and Persistence
> framework and it looks like Cayenne might be it.
>
> I'm in the process of converting an existing EO project to the Cayenne
> framework. I decided to start from scratch instead of converting the EOModel. This is mostly so
> I could learn how the mapping application worked.
>
> The mapping process went fine, and the generated code looks good. When I
> run one of my existing (slightly Cayenneified test cases) I get the
> following exception:
>
> org.objectstyle.cayenne.CayenneRuntimeException: [v.1.0.1 October 13 2003] No suitable DataNode to handle primary key generation.
>
> Below is a snippet from the <project>.map.xml
>
> <db-entity name="OMNI_TRACK_NOTES">
> <db-attribute name="ID" type="INTEGER" isPrimaryKey="true" isMandatory="true"/>
> <db-attribute name="SEQ" type="INTEGER" isMandatory="true"/>
> <db-attribute name="TEXT" type="VARCHAR" length="2000"/>
> <db-attribute name="note_text" type="CLOB" length="40000"/>
> <db-key-generator>
> <db-generator-type>ORACLE</db-generator-type>
> <db-generator-name>note_id_seq</db-generator-name>
> <db-key-cache-size>20</db-key-cache-size>
> </db-key-generator>
> </db-entity>
>
> This sequence exists in the Oracle 8.1.7.0.4 DB.
>
> I have not generated primary key support through the modeling tool, I
> assume I don't need to as I have existing sequences in place for my
> entities. I assume that I just need to specify the name of the sequence
> in the db-entity as illustrated above.
>
> Here is a snippet of the test
>
> DataContext dc = ApplicationController.getDataContext();
>
> try {
>
> OmniTrackNotes note = (OmniTrackNotes) dc.createAndRegisterNewObject("OmniTrackNotes");
>
> note.setNoteText("Test Note");
> Integer sequence = new Integer(1);
> note.setSeq(sequence);
> dc.commitChanges(Level.WARN);
>
>
> } catch (Exception e) {
> e.printStackTrace();
> }
>
>
> Any hints would be most welcome.
>
> Todd
>
This archive was generated by hypermail 2.0.0 : Tue Oct 21 2003 - 14:32:06 EDT