| EMF+Teneo+ORM+JPA EAttribute with multi-valued eenum type [message #431912] |
Wed, 29 July 2009 11:24  |
Eclipse User |
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Originally posted by: jan.pfeil.pfeilweb.de
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Hi experts,
I'm stuck with my ecore model while generating the ORM mapping for
eclipselink. I use an attribute of type EEnum with upperBound set to -1.
This gives me a perfect model so far, but when it comes to orm.xml the
attribute is not generated.
For demonstration I have modified the well known library model. See the
attached file books.ecore and notice the EAttribute tags. Tags is a copy of
the category attribute with upperBound set to -1 for multi-value behavior.
When persisting an instance as xml by using the generated model editor I get
something like this:
<Book>
<tags>Mystery</tags>
<tags>Biography</tags>
</Book>
Looks good to me. Now I use the GenerateORM class to generate the orm.xml
file (using the teneo eclipse plugin). What I get is this:
<orm:entity class="library.impl.BookImpl" name="Book">
<orm:table name="book"/>
<orm:inheritance strategy="JOINED"/>
<orm:attributes>
<orm:basic fetch="EAGER" name="title" optional="false"/>
<orm:basic fetch="EAGER" name="pages" optional="false"/>
<orm:basic fetch="EAGER" name="category" optional="false">
<orm:enumerated>ORDINAL</orm:enumerated>
</orm:basic>
....
</orm:entity>
So you can see the category attribute gets generated but the tags attribute
is completely missing. As soon as I change upperBound to 1 (tags
attribute) I get the same result as for category. So I infer it has
something to do with that.
Is it possible to use such a model with ORM persistence? Is there another
solution? What am I missing?
Ciao,
Jan
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