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Composite element mapping not working

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teknokrat

Post subject: Composite element mapping not working

Posted: Fri Nov 03, 2006 11:45 am

Regular

Joined: Thu Aug 28, 2003 10:54 am
Posts: 67

I am using hibernate 3.2. The mapping i am trying to get to work is

Code:

<set name="ipRanges" table="network_ranges" lazy="false">
         <key column="network" not-null="true"/>
         <composite-element class="IPRange">
            <property name="name"/>
            <property name="start" type="IPAddressType">
               <column name="start_value"/>
               <column name="start_ip"/>
            </property>
            <property name="end" type="IPAddressType">
               <column name="end_value"/>
               <column name="end_ip"/>
            </property>
         </composite-element>
      </set>

IPAddressType is a UserType. On start up hibernate complains that the element mapping has too many columns.

Code:

org.hibernate.MappingException: collection element mapping has wrong number of columns: com.mfuse.novo.provisioning.persistent.Network.ipRanges type: component[name,start,end]
   at org.hibernate.mapping.Collection.validate(Collection.java:277)
   at org.hibernate.mapping.Set.validate(Set.java:19)

I am confused. What is the problem with my mapping?

thanks

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gopalsaha

Post subject:

Posted: Fri Nov 03, 2006 12:29 pm

Regular

Joined: Tue Feb 24, 2004 11:42 am
Posts: 56

can you post the table structure and the mapping files

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teknokrat

Post subject:

Posted: Fri Nov 03, 2006 1:23 pm

Regular

Joined: Thu Aug 28, 2003 10:54 am
Posts: 67

The table structure is

Code:

network_ranges table

id (int) PK
network (int) FK on networks table
start_value (bigint)
end_value (bigint)
start_ip (varchar)
end_ip (varchar)

networks table

id (int) PK
name (varchar)

And the mapping file is

Code:

<hibernate-mapping>
   <class name="Network" table="networks">
      <id name="id" type="integer">
         <generator class="native" />
      </id>
      <property name="name"/>
      <set name="ipRanges" table="network_ranges">
         <key column="network"/>
         <composite-element class="IPRange">
            <property name="name"/>
            <property name="start" type="IPAddressType">
               <column name="start_value"/>
               <column name="start_ip"/>
            </property>
            <property name="end" type="IPAddressType">
               <column name="end_value"/>
               <column name="end_ip"/>
            </property>
         </composite-element>
      </set>
   </class>
</hibernate-mapping>

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wajda

Post subject: Re: Composite element mapping not working

Posted: Wed May 05, 2010 12:12 pm

Newbie

Joined: Wed May 05, 2010 11:07 am
Posts: 1

Hi guys,
is this problem solved? I'm facing almost the same one. (Hibernate version 3.3.2.GA)

This is my DB-schema:

... and my classes:

Code:

public class EntityAuditRecord {
    private Long id;
    private Set<Diff> changes;

    //  other relevant stuff here
}

public class Diff {
    private String propertyName;
    private Object oldValue;
    private Object newValue;

    // setters, getters and the rest stuff here
}

... and here's my mapping:

Code:

<hibernate-mapping>
    <class name="EntityAuditRecord" table="ENTITY_AUDIT">
        <!-- ID and the rest fields' mapping here -->

        <set name="changes" table="ENTITY_DIFF">
            <key column="ENTITY_AUDIT_ID" />
            <composite-element class="Diff">
                <property name="propertyName" column="PROPERTY" />
                <property name="oldValue" column="OLD_VALUE" />
                <property name="newValue" column="NEW_VALUE" />
            </composite-element>
        </set>
    </class>
</hibernate-mapping>

When I try to run it I get the following exception:

Quote:

Caused by: org.hibernate.MappingException: collection element mapping has wrong number of columns: com.idc.worldwide.keystones.service.core.audit.domain.EntityAuditRecord.changes type: component[propertyName,oldValue,newValue]
at org.hibernate.mapping.Collection.validate(Collection.java:302)
at org.hibernate.mapping.Set.validate(Set.java:42)
at org.hibernate.cfg.Configuration.validate(Configuration.java:1153)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1334)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:814)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:732)
at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:211)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1369)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1335)
... 56 more

Table ENTITY_DIFF contains 4 columns (1 foreign key and 3 simple properties) and all of them are mapped.
I don't want to create a separate entity for Diff class and map it as <one-to-many>. According to the Hibernate Reference my mapping supposes to be correct. (See the first example here http://docs.jboss.org/hibernate/core/3. ... ollections)

How can I make it working? Am I missing something?

Thank you!

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