Strange relations

[ibruell]

Hi,

i am using JBoss3.0.0RC1, J2SDK1.4 on Windows 2000 and try to use relations.

I have the following beans:

person (PK: mandant, number, type) and some attributes
employee (PK: mandant, number) type as attribute and others.

In this case i want to use one-to-one unidirectional relation.

In the standard way JBoss generates additional columns in employee
called person_mandant_id, person_number_id and person_type_id.

But i won't that, because the attributes always exist and could be
reused.

if i use in jbosscmp-jdbc.xml:

---
<ejb-relation>
<ejb-relation-name>EmployeePerson</ejb-relation-name>
<foreign-key-mapping/>
<ejb-relationship-role>
<ejb-relationship-role-name>employee-is-person</ejb-relationship-role-name>
<key-fields>
<key-field>
<field-name>mandant</field-name>
<column-name>mandant</column-name>
</key-field>
<key-field>
<field-name>number</field-name>
<column-name>number</column-name>
</key-field>
<key-field>
<field-name>type</field-name>
<column-name>type</column-name>
</key-field>
</key-fields>
</ejb-relationship-role>
<ejb-relationship-role>
<ejb-relationship-role-name>person-employee</ejb-relationship-role-name>
<key-fields/>
</ejb-relationship-role>
</ejb-relation>
---

JBoss throws the message:

---
org.jboss.deployment.DeploymentException: CMP field for key not found: field name=type
at org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCRelationshipRoleMetaData.loadKeyFields(JDBCRe
lationshipRoleMetaData.java:374)
---

if i use this in jbosscmp-jdbc:

---
<ejb-relation>
<ejb-relation-name>EmployeePerson</ejb-relation-name>
<foreign-key-mapping/>
<ejb-relationship-role>
<ejb-relationship-role-name>employee-is-person</ejb-relationship-role-name>
<key-fields/>
</ejb-relationship-role>
<ejb-relationship-role>
<ejb-relationship-role-name>person-employee</ejb-relationship-role-name>
<key-fields>
<key-field>
<field-name>mandant</field-name>
<column-name>mandant</column-name>
</key-field>
<key-field>
<field-name>number</field-name>
<column-name>number</column-name>
</key-field>
<key-field>
<field-name>type</field-name>
<column-name>type</column-name>
</key-field>
</key-fields>
</ejb-relationship-role>
</ejb-relation>
---

than jboss throws thiss error:

---
org.jboss.deployment.DeploymentException: CMP field for key not found: field name=type
at org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCRelationshipRoleMetaData.loadKeyFields(JDBCRe
lationshipRoleMetaData.java:374)
---

What is the right way ?

[dsundstrom]

I have already responded to this on the jboss-user list. In the future pleas only post to the forum or the list. Here is a copy of my response:

The first one is definitely wrong, but the second should work. Try it again and make sure the jar is correctly updated (common problem). If it doesn't go away, post a *simple* bug report with a test case at sourceforge.net.

[ibruell]

Now it works, the setter methods from the dependent bean wasn't in the remote interface