An association from the table...refers to an unmapped class:

ogross · **Joined:** Thu Mar 25, 2004 9:13 am **Posts:** 20

I am using Hibernate 2.1, MS-SQL and many-to-many mapping.
This is one XML file

Code:

<hibernate-mapping>
    <class name="com.snap.businessobjects.network.Network" table="SSN_NETWORKS">
...
        <set name="members" table="SSN_NETWORK_MEMBERS">
            <key column="NME_NET_ID"/>
            <many-to-many column="MEM_ID" class="com.snap.businessobjects.member.Member"/>
        </set>
    </class>
</hibernate-mapping>

This is the one that the former refers to...

Code:

<hibernate-mapping>
    <class name="com.snap.businessobjects.member.Member" table="SSN_MEMBERS">
...
    </class>
</hibernate-mapping>

When I try to instanciate an instance of com.snap.businessobjects.network.Network (the first) get the following exception:

Code:

net.sf.hibernate.MappingException: An association from the table SSN_NETWORK_MEMBERS refers to an unmapped class: com.snap.businessobjects.member.Member
   at net.sf.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:643)
   at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:743)

Please help, I am tried to deal with this for too long now...
TIA Oren

Moss · **Joined:** Tue Apr 20, 2004 12:07 pm **Posts:** 21

Did you include the mapping resource of the Member class in hibernate.cfg.xml?

ogross · **Joined:** Thu Mar 25, 2004 9:13 am **Posts:** 20

No, since I was using a property file. Than going through the documentation I saw that in the XML version you might do tah:

Code:

        <mapping resource="eg/Edge.hbm.xml"/>
        <mapping resource="eg/Vertex.hbm.xml"/>

So, I decided to swith to the XML file only I can't seem to have it working... I am using Jboss, hence my application has a 'war' file, and so I had tried to put the XML in WEB-INF.... the Hibernate doesn't find it.

1. Any idea?
2. Can I specify mapping in propeties file?

TIA Oren

michael · **Posted:** Fri Apr 23, 2004 7:52 am

put it where you had your properties file before.

ogross · **Joined:** Thu Mar 25, 2004 9:13 am **Posts:** 20

So to wrap this up, in order to solve this I had to do two things (I don't know if this is the only way but it definitely worked):
Use hibernate.cfg.xml instead of