Hi everybody!!

I have a undefined problem during th development of a entity bean.
I list the details of this entity bean here:

1) The primary key is compound and have 2 fields, ID_Testata (Integer) and NSigillo( Integer ).
2) A field of the primary key have a foreign reference with another entity bean(table)

I have tried different solution but without success.

I list the files I have wrote:

EJB-JAR.XML

...

jdbc:mysql://127.0.0.1:3306/lvbo [jboss on Default schema]
<display-name>SigilliPerTestataEB</display-name>
<ejb-name>SigilliPerTestataBean</ejb-name>
<local-home>it.lvcido.lvbo.ejb.entity.SigilliPerTestataLocalHome</local-home>
it.lvcido.lvbo.ejb.entity.SigilliPerTestataLocal
<ejb-class>it.lvcido.lvbo.ejb.entity.SigilliPerTestataBean</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>it.lvcido.lvbo.ejb.entity.SigilliPerTestataPK</prim-key-class>
false
<abstract-schema-name>SigilliPerTestata</abstract-schema-name>
<cmp-field>
<field-name>nSigillo</field-name>
</cmp-field>
<cmp-field>
<field-name>destrizioneSigillo</field-name>
</cmp-field>
<cmp-field>

<field-name>idTestata</field-name>
</cmp-field>

auto generated method
<query-method>
<method-name>findByNSigillo</method-name>
<method-params>
<method-param>java.lang.Integer</method-param>
</method-params>
</query-method>
<ejb-ql>SELECT OBJECT(s) FROM SigilliPerTestata AS s WHERE s.nSigillo = ?1</ejb-ql>


auto generated method
<query-method>
<method-name>findByDestrizioneSigillo</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>
</query-method>
<ejb-ql>SELECT OBJECT(s) FROM SigilliPerTestata AS s WHERE s.destrizioneSigillo = ?1</ejb-ql>


<query-method>
<method-name>findByTestataId</method-name>
<method-params>
<method-param>java.lang.Integer</method-param>
</method-params>
</query-method>
<ejb-ql>SELECT OBJECT(s) FROM SigilliPerTestata AS s WHERE s.idTestata = ?1</ejb-ql>


...
...
<ejb-relation>

<ejb-relation-name>SigilliPerTestataBean-TestatePerOpdogBean</ejb-relation-name>
<ejb-relationship-role>
<ejb-relationship-role-name>SigilliPerTestataBean</ejb-relationship-role-name>
Many
<relationship-role-source>
<ejb-name>SigilliPerTestataBean</ejb-name>
</relationship-role-source>
<cmr-field>
<cmr-field-name>IDtestata</cmr-field-name>
</cmr-field>
</ejb-relationship-role>
<ejb-relationship-role>
<ejb-relationship-role-name>IDtestata</ejb-relationship-role-name>
One
<relationship-role-source>
<ejb-name>TestatePerOpdogBean</ejb-name>
</relationship-role-source>
<cmr-field>
<cmr-field-name>sigilliPerTestata</cmr-field-name>
<cmr-field-type>java.util.Collection</cmr-field-type>
</cmr-field>
</ejb-relationship-role>
</ejb-relation>
...

JBOSSCMP_JDBC.XML

...

<ejb-name>SigilliPerTestataBean</ejb-name>
<table-name>sigilli_per_testata</table-name>
<cmp-field>
<field-name>destrizioneSigillo</field-name>
<column-name>DestrizioneSigillo</column-name>
</cmp-field>
<cmp-field>
<field-name>nSigillo</field-name>
<column-name>NSigillo</column-name>
</cmp-field>
<cmp-field>
<field-name>idTestata</field-name>
<column-name>ID_Testata</column-name>
</cmp-field>

....
...

<ejb-name>TestatePerOpdogBean</ejb-name>
<table-name>testate_per_opdog</table-name>
<cmp-field>
<field-name>cinCodiceLuogoVisitaMerci</field-name>
<column-name>CinCodiceLuogoVisitaMerci</column-name>
</cmp-field>
<cmp-field>
<field-name>nazMezzoFront</field-name>
<column-name>nazMezzoFront</column-name>
</cmp-field>
<cmp-field>
<field-name>iDTestata</field-name>
<column-name>ID_Testata</column-name>
</cmp-field>
<unknown-pk>
<unknown-pk-class>java.lang.Integer</unknown-pk-class>
<field-name>iDTestata</field-name>
<column-name>ID_Testata</column-name>
<auto-increment/>
</unknown-pk>
<entity-command name="mysql-get-generated-keys"/>

...
...
<ejb-relation>
<ejb-relation-name>SigilliPerTestataBean-TestatePerOpdogBean</ejb-relation-name>
<foreign-key-mapping/>
<ejb-relationship-role>
<ejb-relationship-role-name>SigilliPerTestataBean</ejb-relationship-role-name>
<key-fields/>
</ejb-relationship-role>
<ejb-relationship-role>
<ejb-relationship-role-name>IDtestata</ejb-relationship-role-name>
<key-fields>
<key-field>
<field-name>iDTestata</field-name>
<column-name>ID_TESTATA</column-name>
</key-field>
</key-fields>
</ejb-relationship-role>
</ejb-relation>
...

I have met these problems:

- the message error "Entity with primary key it.lvcido.lvbo.ejb.entity.SigilliPerTestataPK@1 already exists" when I create a new SigilliPerTestataBean (entity bean) .

- wrong values when i execute this query:"SELECT OBJECT(s) FROM SigilliPerTestata AS s WHERE s.idTestata = ?1"

I don't know what I have to do..

Thanks..

Fabrizio

PS: I use mysql as database and Netbeans as IDE