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Data type and configuring to existing DB [message #633759]

Tue, 19 October 2010 05:57

tenor
Messages: 57
Registered: October 2010

Member

A)

Vide

http://wiki.eclipse.org/Teneo/Hibernate/ModelRelational/Tene o_Annotation_Examples#Examples_of_annotations_in_XML

Book.category: @Enumerated to force the storage of an int in the database (instead of the Teneo default of using a String).

I could not find such @Enumerated at the model, looking at Book.java or BookCategory.java. So where i will have to add such. Is custom usertype utils is recommended for datatype mapping back and forth Oracle and Hibernate.

B)

viz

<?xml version="1.0" encoding="utf-8"?>
<persistence-mapping xmlns="http://www.eclipse.org/emft/teneo"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

<epackage namespace-uri=" http://www.eclipse.org/emf/teneo/hibernate/examples/extlibra ry">
<eclass name="Library">
<table name="theLibraryTable"/>
</eclass>
</epackage>
</persistence-mapping>

is this way to way configure to existing DB and table ? what should be in namespace-uri ?

If so, how it is made available to read by session?

Also, is there a standard book on EMF/Teneo/Cdo ?

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Re: Data type and configuring to existing DB [message #633873 is a reply to message #633759]

Tue, 19 October 2010 12:25

Ed Merks
Messages: 24530
Registered: July 2009

Senior Member

Tenor,

Please us the eclipse.tools.emf newsgroup/forum for questions about
EMF/CDO/Teneo (and in the latter case, prefix the subject with [CDO] or
[Teneo]. More comments below.

tenor wrote:
> A)
>
> Vide
> http://wiki.eclipse.org/Teneo/Hibernate/ModelRelational/Tene o_Annotation_Examples#Examples_of_annotations_in_XML
>
>
> Book.category: @Enumerated to force the storage of an int in the
> database (instead of the Teneo default of using a String).
> I could not find such @Enumerated at the model, looking at Book.java
> or BookCategory.java. So where i will have to add such. Is custom
> usertype utils is recommended for datatype mapping back and forth
> Oracle and Hibernate.
I assume this talks about standard JPA annotations...
>
>
> B)
>
> viz
> <?xml version="1.0" encoding="utf-8"?>
> <persistence-mapping xmlns="http://www.eclipse.org/emft/teneo"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
>
> <epackage
> namespace-uri=" http://www.eclipse.org/emf/teneo/hibernate/examples/extlibra ry">
>
> <eclass name="Library">
> <table name="theLibraryTable"/>
> </eclass>
> </epackage>
> </persistence-mapping>
>
>
> is this way to way configure to existing DB and table ? what should be
> in namespace-uri ?
>
> If so, how it is made available to read by session?
>
> Also, is there a standard book on EMF/Teneo/Cdo ?
>
>
>

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