I all, I'm very new to hibernate and I've generated my classes and mappings with AppFuse Generator [https://appfusegenerator.dev.java.net/].

I Hope that these informations are enought...

Thanks in advance

a.terreno

Hibernate version: hibernate-3.1

Mapping documents:
<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
<class
name="com.beequality.model.other.Anagraficarisorse"
table="anagraficarisorse"
select-before-update="false"
dynamic-update="true"
dynamic-insert="true"
optimistic-lock="all"
>
<composite-id name="anagraficarisorsePK" class="com.beequality.model.other.tbl.AnagraficarisorsePK">
<key-property name="codazienda" column="CodAzienda" type="java.lang.String" length="4" />
<key-property name="codutente" column="CodUtente" type="java.lang.String" length="5" />
</composite-id>
<property
name="cognome"
type="java.lang.String"
update="true"
insert="true"
access="property"
column="Cognome"
length="50"
not-null="false"
unique="false"
/>
<property
name="nome"
type="java.lang.String"
update="true"
insert="true"
access="property"
column="Nome"
length="50"
not-null="false"
unique="false"
/>
<property
name="incarico"
type="java.lang.String"
update="true"
insert="true"
access="property"
column="Incarico"
length="50"
not-null="false"
unique="false"
/>
<property
name="telefono"
type="java.lang.String"
update="true"
insert="true"
access="property"
column="Telefono"
length="50"
not-null="false"
unique="false"
/>
<property
name="fax"
type="java.lang.String"
update="true"
insert="true"
access="property"
column="Fax"
length="50"
not-null="false"
unique="false"
/>
<property
name="cellulare"
type="java.lang.String"
update="true"
insert="true"
access="property"
column="Cellulare"
length="50"
not-null="false"
unique="false"
/>
<property
name="eMail"
type="java.lang.String"
update="true"
insert="true"
access="property"
column="E_mail"
length="50"
not-null="false"
unique="false"
/>
<property
name="userid"
type="java.lang.String"
update="true"
insert="true"
access="property"
column="UserId"
length="15"
not-null="true"
unique="false"
/>
<property
name="password"
type="java.lang.String"
update="true"
insert="true"
access="property"
column="Password"
length="12"
not-null="true"
unique="false"
/>
<property
name="inizioattivita"
type="java.util.Date"
update="true"
insert="true"
access="property"
column="InizioAttivita"
length="19"
not-null="false"
unique="false"
/>
<property
name="fineattivita"
type="java.util.Date"
update="true"
insert="true"
access="property"
column="FineAttivita"
length="19"
not-null="false"
unique="false"
/>
<property
name="datacreazione"
type="java.util.Date"
update="true"
insert="true"
access="property"
column="DataCreazione"
length="19"
not-null="false"
unique="false"
/>
<property
name="dataaggiornamento"
type="java.util.Date"
update="true"
insert="true"
access="property"
column="DataAggiornamento"
length="19"
not-null="false"
unique="false"
/>
<!-- Imported bi-directional one-to-many association to Ruolorisorse -->
<set name="ruolorisorseGroup"
table="ruolorisorse"
lazy="true"
inverse="true"
cascade="save-update"
sort="unsorted"
>
<key>
<column name="CodAzienda"/>
</key>
<one-to-many
class="com.beequality.model.other.Ruolorisorse"
/>
</set>
<!-- imported bi-directional many-to-one association to Aziende -->
<many-to-one
name="Aziende"
class="com.beequality.model.other.Aziende"
not-null="false"
update="false"
insert="false"
>
<column name="CodAzienda" />
</many-to-one>
<!-- imported bi-directional many-to-one association to Qualifiche -->
<many-to-one
name="Qualifiche"
class="com.beequality.model.other.Qualifiche"
not-null="false"
outer-join="auto"
>
<column name="Qualifica" />
<column name="CodAzienda" />
</many-to-one>
</class>
</hibernate-mapping>
<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
<class
name="com.beequality.model.other.Ruolorisorse"
table="ruolorisorse"
select-before-update="false"
dynamic-update="true"
dynamic-insert="true"
optimistic-lock="all"
>
<composite-id name="ruolorisorsePK" class="com.beequality.model.other.tbl.RuolorisorsePK">
<key-property name="codazienda" column="CodAzienda" type="java.lang.String" length="4" />
<key-property name="codrisorsa" column="CodRisorsa" type="java.lang.String" length="5" />
<key-property name="codarea" column="CodArea" type="java.lang.String" length="5" />
<key-property name="funzione" column="Funzione" type="java.lang.String" length="10" />
</composite-id>
<property
name="iniziovalidita"
type="java.util.Date"
update="true"
insert="true"
access="property"
column="InizioValidita"
length="19"
not-null="false"
unique="false"
/>
<property
name="finevalidita"
type="java.util.Date"
update="true"
insert="true"
access="property"
column="FineValidita"
length="19"
not-null="false"
unique="false"
/>
<!-- imported bi-directional many-to-one association to Areeaziendali -->
<many-to-one
name="Areeaziendali"
class="com.beequality.model.other.Areeaziendali"
not-null="false"
update="false"
insert="false"
>
<column name="CodArea" />
<column name="CodAzienda" />
</many-to-one>
<!-- imported bi-directional many-to-one association to Funzioni -->
<many-to-one
name="Funzioni"
class="com.beequality.model.other.Funzioni"
not-null="false"
update="false"
insert="false"
>
<column name="Funzione" />
<column name="CodAzienda" />
</many-to-one>
<!-- exported bi-directional one-to-many association to Anagraficarisorse -->
<set name="anagraficarisorseGroup"
table="anagraficarisorse"
lazy="true"
inverse="true"
cascade="save-update"
sort="unsorted"
>
<key>
<column name="CodAzienda"/>
</key>
<one-to-many
class="com.beequality.model.other.Anagraficarisorse"
/>
</set>
</class>
</hibernate-mapping>

Full stack trace of any exception that occurs:
BUILD FAILED
E:\prj\beequality\beequality\build.xml:691: Schema text failed: Foreign key (FKA55EB4E8BBE8627:anagraficarisorse [CodAzienda])) must have same number of columns as the referenced primary key (ruolorisorse [CodAzienda,CodRisorsa,CodArea,Funzione])

Name and version of the database you are using:
MySQL 5.0.17-nt

The generated mapping documents are inconsistent either because the tool could not correctly identify the primary or foreign key definition, or they are not correctly defined in your current database:

The table "ruolorisorse" has a composite key with is made out of 4 columns.
Check if this is correct.
If so, the foreign key definition must be adapted (your mapping doc contains only one column: "CodAzienda").

See the following link for composite key examples:
http://www.hibernate.org/hib_docs/v3/reference/en/html/example-mappings.html#example-mappings-composite-key

Urs

Yes this is correct.

I'm right now talking with the DBA and he said that we'll drop the FK :-)

thx a lot.

the DBA sais that this is a "non identifying relation" and sometimes, somewhere it's not correctly handled by the DB.

ciao ;-)