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vidigiani
 Post subject: Ternary Mapping with XDoclet
PostPosted: Sun Nov 02, 2003 7:14 pm 
Beginner
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Joined: Wed Oct 15, 2003 3:08 pm
Posts: 32
I am trying to set up a ternary map between two domain objects and a UserType that represents the value of the link. I foudn the following post useful: http://forum.hibernate.org/viewtopic.ph ... ht=ternary.

I am trying to get this working with XDoclet tags, but I am not able to get the resulting .hbm.xml to look quite like what Steve has. Here is one example of my tags:

Code:
    /**
     * @hibernate.map table="resource_state_on_system"
     * @hibernate.collection-key column="resource_id"
     * @hibernate.collection-many-to-many column="resource_id" class="Resource"
     * @hibernate.collection-element column="state" type="StateType" length="20"
     */


I can't seem to figure out how to get the index-many-to-many tag with XDoclet. I think this is why I am getting an NPE with the following trace:

Code:
java.lang.NullPointerException
        at net.sf.hibernate.cfg.Binder.bindMapSecondPass(Binder.java:995)
        at net.sf.hibernate.cfg.Binder$MapSecondPass.secondPass(Binder.java:1177)
        at net.sf.hibernate.cfg.Binder$SecondPass.doSecondPass(Binder.java:1135)

        at net.sf.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:497)
        at net.sf.hibernate.cfg.Configuration.generateDropSchemaScript(Configuration.java:352)
        at net.sf.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:51)
        at org.apache.maven.hibernate.beans.SchemaExportBean.getSchemaExport(SchemaExportBean.java:358)
        at org.apache.maven.hibernate.beans.SchemaExportBean.execute(SchemaExportBean.java:268)


I did try using the @hibernate.collection-index tag, but it seems to need a type, but I am using a domain object class and not a type.
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gavin
 Post subject:
PostPosted: Sun Nov 02, 2003 7:48 pm 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 12:50 pm
Posts: 5130
Location: Melbourne, Australia
Its better if you show the actual Hibernate mapping that you couldn't make work. Don't show just the xdoclet tags.
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vidigiani
 Post subject:
PostPosted: Sun Nov 02, 2003 10:13 pm 
Beginner
Beginner

Joined: Wed Oct 15, 2003 3:08 pm
Posts: 32
Here is my hibernate mapping file:

Code:
<?xml version="1.0"?>

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

<hibernate-mapping>
    <class
        name="Resource"
        table="resource"
        dynamic-update="false"
        dynamic-insert="false"
    >

        <id
            name="id"
            column="id"
            type="java.lang.String"
        >
            <generator class="uuid.hex">
            </generator>
        </id>

        <property
            name="state"
            type="StateType"
            update="true"
            insert="true"
            column="state"
            length="20"
        />


        <map
            name="systemStateMap"
            table="resource_state_on_system"
            lazy="false"
            sort="unsorted"
            inverse="false"
            cascade="none"
        >

              <key
                  column="resource_id"
              />

              <element
                  column="state"
                  type="StateType"
                  length="20"
                  not-null="false"
                  unique="false"
              />

              <many-to-many
                  class="System"
                  column="system_id"
                  outer-join="auto"
              />

        </map>

        <property
            name="displayName"
            type="java.lang.String"
            update="true"
            insert="true"
            column="display_name"
        />

        <!--
            To add non XDoclet property mappings, create a file named
                hibernate-properties-Resource.xml
            containing the additional properties and place it in your merge dir.
        -->

    </class>

</hibernate-mapping>
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vidigiani
 Post subject:
PostPosted: Sun Nov 02, 2003 10:26 pm 
Beginner
Beginner

Joined: Wed Oct 15, 2003 3:08 pm
Posts: 32
Could this be related? http://opensource.atlassian.com/project ... =printable. I have the latest XDoclet from CVS, so I will see if I can find some documentation for this.
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vidigiani
 Post subject:
PostPosted: Sun Nov 02, 2003 10:29 pm 
Beginner
Beginner

Joined: Wed Oct 15, 2003 3:08 pm
Posts: 32
I found the docs and there is a new tag @hibernate.index-many-to-many. This looks like what I was looking for.
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