querying two tables using criteria

[Manon Baratt]

Hi,

I have two tables that share the same heading_key column. I am using the following statement using criteria to retrieve the headingcode:

org.hibernate.Criteria criteria = getPersistenceEngine()
.getPersistenceSession().getHibernateSession()
.createCriteria(Heading.class, "h")
.createCriteria("customer", "c");

criteria.setFetchMode("customer", FetchMode.JOIN)
.add(Restrictions.eq("h.headingKey", "c.headingKey" ))
.add(Restrictions.eq("c.customerId", Long.parseLong(customerId)))
.setProjection(Projections.distinct(Projections.projectionList()
.add(Projections.property("h.headingCode").as(headingCode"))));

list = criteria.list();

my xml files are defined:

customer:

<hibernate-mapping>
<class table="customer" name="com....domain.Customer">
<id
name="headingKey"
column="heading_key"
type="long"
unsaved-value="null" >
<generator class="native">
</generator>
</id>

<property
name="customerId"
not-null="false"
type="long"
column="customer_id" />

Heading:

<hibernate-mapping>
<class table="heading" name="com....domain.Heading">
<id
name="headingKey"
column="heading_key"
type="long"
unsaved-value="null" >
<generator class="native">
</generator>
</id>
<property
name="headingCode"
not-null="false"
type="java.lang.String"
column="heading_code" />

<set
name="customer" >
<key column="heading_key"/>
<one-to-many
class="com....domain.Customer" />
</set>

The query I get from hibernate is:

select
distinct this_.heading_code as y0_
from
heading this_,
customer c1_
where
this_.heading_key=c1_.heading_key
and this_.heading_key=?
and c1_.customer_id=?

Which is what I want minus the second to the last line. What I am doing wrong?

Thanks for your help.