DiscriminatorColumn exported in DDL but not HBM.XML

cxcheng · **Joined:** Thu Nov 09, 2006 2:38 pm **Posts:** 2

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Hibernate version: 3.20

Mapping documents: using JPA annotation

Hi guys, I hope I'm not doing something wrong here. There are two problems here actually, but I'm primarily concerned about the first one.

First problem:

I have one base class and two subclasses. Base class has the annotation:

Code:

@DiscriminatorColumn(name="DTYPE", discriminatorType=DiscriminatorType.INTEGER)
@DiscriminatorValue(value="0")

subclass has the

Code:

@DiscriminatorValue(value="0")

Hibernate schema export correctly creates DTYPE column with INTEGER type.

Unfortunately, the hbm.xml files are incorrect. The subclasses hbm.xml file has the "discriminator-value" attribute correct, but the base class hbm.xml is missing the "discriminator" element. At startup, I correctly get the discriminator column not specified error. Manually adding the following to the hbm.xml file causes that to go away.

Code:

Second problem:

"Integer" discriminator type doesn't work. Causes NumberFormatException as the underlying code insists on using value of String. Replacing the above Integer with String causes this problem to go away.

Is there something more I need to do in order to use Integer discriminator values?

Thanks

max · **Posted:** Fri Nov 10, 2006 2:15 am

why are you talking about hbm.xml files if you are using jpa annotations ?

cxcheng · **Joined:** Thu Nov 09, 2006 2:38 pm **Posts:** 2

Thanks a bundle. I've been previously using the hbm.xml and tried switching to JPA but didn't read the docs. Guess it doesn't make sense since the annotation in the runtime already contains sufficient information.