Hello all,

I am trying to do a one to many mapping between

com.aol.ic.art.data.domain.Request class and

com.aol.ic.art.data.domain.RequestStatus class

and following are my mapping documents. I am receiving a complaint that net.sf.hibernate.MappingException: Association references unmapped class: com.aol.ic.art.data.domain.RequestStatus

Following are the details and mapping documents. Please reply ASAP.


Hibernate version:
hibernate2.jar

Mapping documents:

REQUEST

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping
PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>

<class name="com.aol.ic.art.data.domain.Request" table="REQUEST">

<id name="id">
<generator class="assigned"/>
</id>

<property name="requestorDn">
<column name="REQUESTORDN" length="255" not-null="true"/>
</property>

<property name="customerDn">
<column name="CUSTOMERDN" length="255" not-null="true"/>
</property>

<property name="fulfillmentBuildingDn">
<column name="FULFILLMENTBUILDINGDN" length="255" not-null="true"/>
</property>

<property name="fulfillmentRoomNumber">
<column name="FULFILLMENTROOMNUMBER" length="20" not-null="true"/>
</property>

<property name="lastApproverDn">
<column name="LASTAPPROVERDN" length="255" not-null="true"/>
</property>

<property name="nextApproverRoleDn">
<column name="NEXTAPPROVERROLEDN" length="255" not-null="true"/>
</property>

<property name="ticketNumber">
<column name="TICKETNUMBER" length="30" not-null="true"/>
</property>

<property name="status">
<column name="STATUS" length="30" not-null="true"/>
</property>

<property name="type">
<column name="TYPE" length="30" not-null="true"/>
</property>

<property name="comments">
<column name="COMMENTS" length="255" not-null="true"/>
</property>

<set name="products" table="REQUEST_PRODUCT_LINK" lazy="true">
<key column="REQUESTID"/>
<many-to-many class="com.aol.ic.art.data.domain.Product"/>
</set>

<set name="states" inverse="true" lazy="true">
<key column="REQUESTID"/>
<one-to-many class="com.aol.ic.art.data.domain.RequestStatus"/>
</set>
</class>
</hibernate-mapping>


REQUEST STATE

<hibernate-mapping>
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN" "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>
<class name="com.aol.ic.art.data.domain.RequestStatus" table="REQUEST_STATE">
<id name="id">
<generator class="assigned"/>
</id>

<many-to-one name="request" class="com.aol.ic.art.data.domain.RequestStatus"
column="REQUESTID"/>

<property name="state">
<column name="STATE" length="20" not-null="true"/>
</property>

<property name="dateStateAttained" type="date">
<column name="DATE_STATE_ATTAINED" length="255" not-null="true"/>
</property>
</class>

</hibernate-mapping>

</hibernate-mapping>
Code between sessionFactory.openSession() and session.close():


Full stack trace of any exception that occurs:


Name and version of the database you are using:

Oracle 9.2.0

Debug level Hibernate log excerpt:


2004-08-07 04:02:02 ERROR HibernateUtil.<clinit>(?) - Initial SessionFactory creation failed.
net.sf.hibernate.MappingException: Association references unmapped class: com.aol.ic.art.data.domain.RequestStatus
at net.sf.hibernate.cfg.Binder.bindCollectionSecondPass(Binder.java:1162)
at net.sf.hibernate.cfg.Binder$CollectionSecondPass.secondPass(Binder.java:1366)
at net.sf.hibernate.cfg.Binder$SecondPass.doSecondPass(Binder.java:1342)
at net.sf.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:618)
at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:761)
at com.aol.ic.art.data.dao.utils.HibernateUtil.<clinit>(Unknown Source)
at com.aol.ic.art.data.dao.utils.CreateRequest.create(Unknown Source)
at com.aol.ic.art.ARTInitServlet.init(Unknown Source)

You dont have it listed in the step the sets up the Hibernate Session. Don't know which way you are doing it though.

Hello.
I think I have a very similar problem with many-to-many, but I don't understand the answer provided.

I have two tables: Event and Sponsor with many to many relationship between them. Sponsorship is the middle table that collects both ID-s.


I get an error:
Error 500: An association from the table SPONSORSHIP refers to an unmapped class: com.mba.dataobjects.Event

Hibernate version: Hibernate2.jar

Sponsor.hbm.xml:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping SYSTEM "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">
<hibernate-mapping>
<class name="com.mba.dataobjects.Sponsor" table="SPONSOR">
<meta attribute="class-description">
Represents sponsors
@author bozidard
</meta>
<id name="idSponsor" type="int" column="ID_Sponsor">
<meta attribute="scope-set">public</meta>
<generator class="native"/>
</id>
<property name="name" type="string" not-null="true"/>
<property name="type" type="string" not-null="true"/>
<property name="logo" type="string" not-null="false"/>
<property name="hyperlink" type="string" not-null="false"/>
<set name="events" table="SPONSORSHIP">
<key column="ID_Sponsor"/>
<many-to-many class="com.mba.dataobjects.Event" column="ID_Event"/>
</set>
</class>
</hibernate-mapping>

Event.hbm.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping SYSTEM "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">
<hibernate-mapping>
<class name="com.mba.dataobjects.Event" table="EVENT">
<meta attribute="class-description">Represents an event that happened or will happen in the future @author bozidard
</meta>
<id name="idEvent" type="int" column="ID_Event">
<meta attribute="scope-set">public</meta>
<generator class="native"/>
</id>
<property name="title" type="string" not-null="true"/>
<property name="type" type="string" not-null="true"/>
<property name="date" type="date" not-null="true"/>
<property name="location" type="string" not-null="true"/>
<property name="organizers" type="string" not-null="false"/>
<property name="noParticipants" type="int" not-null="false"/>
<property name="noCountries" type="int" not-null="false"/>
<property name="specialGuests" type="string" not-null="false"/>
<property name="description" type="string" not-null="false"/>
<property name="linkMore" type="string" not-null="false"/>
<set name="sponsors" table="SPONSORSHIP" inverse="true">
<key column="ID_Event"/>
<many-to-many class="com.mba.dataobjects.Sponsor" column="ID_Sponsor"/>
</set>
</class>
</hibernate-mapping>


I would apriciate any help.

Thank You!
Bozo