class not found in schema export with a composite identifier

andreamoz · **Joined:** Fri Jul 28, 2006 10:38 am **Posts:** 4

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I'm using Hibernate inside NetBeans 5.0 with a JDK 1.4.2.05. Everything is working fine, but when I try to map a table with a composite key and generate the database schema I get a "component class not found error". If I generate the same class with a single field primary key it works just fine and I get no class not found exceptions.

Hibernate version: Hibernate 3.0

Mapping documents:

Code:

<hibernate-mapping package="it.gpa.passcompagnia.domain">
    <class name="RGIVersione" table="pcversio" lazy="false">
        <composite-id>
            <key-property name="idpolizza" column="idpolizza" type="string" length="12" />
            <key-property name="nverinizio" column="nverinizio" type="string" length="12" />
        </composite-id>
        <!-- a bunch of other properties -->
    </class>
</hibernate-mapping>

Full stack trace of any exception that occurs:
09:51:15,259 INFO Configuration:893 - processing foreign key constraints
C:\localrep\myProject\06Deployment\build-hibernate.xml:50: Schema text failed: component class not found: my.package.RGIVersione

Name and version of the database you are using: Microsoft SQL Server 2000

Debug level Hibernate log excerpt:

Code:

01:21,747  INFO HbmBinder:258 - Mapping class: it.gpa.passcompagnia.domain.RGIMovimento -> pcmovime
01:21,747  INFO Configuration:440 - Mapping resource: it/gpa/passcompagnia/service/persistenza/domain/RGIVersione.hbm.xml
01:21,762  INFO HbmBinder:258 - Mapping class: it.gpa.passcompagnia.domain.RGIVersione -> pcversio
01:21,794  WARN HbmBinder:421 - Could not perform validation checks for component as the class it.gpa.passcompagnia.domain.RGIVersione was not found

If I use a class as an identifier, e.g.

Code:

<composite-id name="idrgiversione" class="IDRGIVersione">
            <key-property name="idpolizza" column="idpolizza" type="string" length="12" />
            <key-property name="nverinizio" column="nverinizio" type="string" length="12" />
        </composite-id>

I get the same error, only referencing the class of the identifier.
I have read two books, the online documentation, looked for a solutions in a ton of posts: everything looks fine but it doesn't work. Where am I wrong?

t.i.a.

max · **Posted:** Mon Jul 31, 2006 7:20 am

you need to put the classes into the classpath when telling hibernate to do its schemaexport.

andreamoz · **Joined:** Fri Jul 28, 2006 10:38 am **Posts:** 4

FOA thank you for the quick answer.
The classes already are in the classpath; in fact if I don't use a composite identifier the tool wonderfully generates a perfect schema.

max · **Posted:** Mon Jul 31, 2006 7:43 am

if they were in the classpath hbm2ddl would not complain.

check the spelling.

andreamoz · **Joined:** Fri Jul 28, 2006 10:38 am **Posts:** 4

ehm...

Quote:

The classes already are in the classpath; in fact if I don't use a composite identifier the tool wonderfully generates a perfect schema.

replace with "I THINK the classes SHOULD be in the classpath, let me ACTUALLY CHECK IT! oh my the'y're not there!!! How could that happen???". Thanks a lot.

andreamoz · **Joined:** Fri Jul 28, 2006 10:38 am **Posts:** 4

ehm...

Quote:

The classes already are in the classpath; in fact if I don't use a composite identifier the tool wonderfully generates a perfect schema.

replace with "I THINK the classes SHOULD be in the classpath, let me ACTUALLY CHECK IT! oh my the'y're not there!!! How could that happen???". Well looks like I only assumed without checking. Thanks a lot