mapping of two nested elements with xdoclet

rimmele7 · **Joined:** Sun Dec 28, 2003 4:35 pm **Posts:** 13

Hello,

I'd like to reproduce the mapping for the Cat example from the doc. I am not able to generate a column element within an id element.

What I would like to generate (id element with nested column element with sql-type attribute):

Code:

...
<id name="id" type="string" unsaved-value="null" >
  <column name="CAT_ID" sql-type="char(32)" not-null="true"/>
  <generator class="uuid.hex"/>
</id>
...

One of my best trials:
in:
* @hibernate.column
* column="CAT_ID"
* sql-type="char(32)"
* not-null="true"
* @hibernate.id
* column="CAT_ID"
* unsaved-value="null"
* generator-class="uuid.hex"
* type="string"

out:

Code:

 ...       
       <id
            name="id"
            column="CAT_ID"
            type="string"
            unsaved-value="null"
        >
            <generator class="uuid.hex">
            </generator>
        </id>
...

For me it is not a concrete technical problem, but I'd like to know, if one can map anything using xdoclet or if there are some limitations.

Thanks, Thomas

michael · **Posted:** Thu Jan 01, 2004 7:51 pm

Currently the @hibernate.column xdoclet tags are only considered for properties, not for ids

emmanuel · **Posted:** Fri Jan 02, 2004 8:00 am

rimmele7 wrote:

For me it is not a concrete technical problem, but I'd like to know, if one can map anything using xdoclet or if there are some limitations.

There are some limitations. Some patch has benn made to correct some. Have a look at JIRA

sgwood · **Posted:** Fri Jan 02, 2004 10:31 am

There are some parts of a Hibernate hbm.xml file that cannot be
generated from XDoclet hibernatedoclet @tags in your source with XDoclet
1.2.b4. In my case, I needed to include:

Code:

<!-- Included by Hibernate XDoclet task into the hbm.xml -->

   <any name="referredToObject" id-type="long">
       <column name="objectClass" length="128" not-null="true"/>
       <column name="objectId" not-null="true"/>
   </any>

in one of my class mappings. So in my source tree I have:

com/galenworks/hibernate/DocumentCrossReference.java
com/galenworks/hibernate/hibernate-properties-DocumentCrossReference.xml

The hibernate-properties-DocumentCrossReference.xml contains the needed snippet. Pointing to the hibernate-properties-*.xml file in the hibernatedoclet mergedir and then running hibernatedoclet includes the snippet at the end of the class tag, ie.

Code:

<!-- =================================================================== -->
<!-- generates the hibernate HBM.XML files and SAR descriptor             -->
<!-- =================================================================== -->

<target name="generate-Hibernate" 
            description="Generates Hibernate class descriptor files."
            depends="compile">

<!-- copy additional resources for the Hibernate XDoclet task to the mergedir    -->

    <copy todir="${build.resources}/sar/hibernate">
        <fileset dir="${src.dir}">
            <include name="**/hibernate/hibernate-properties-*.xml"/>
        </fileset>
    </copy>

    <!-- Execute the hibernatedoclet task -->
    <hibernatedoclet
        destdir="${build.resources}/sar/hibernate"
        force="${xdoclet.force}"
        mergedir="${build.resources}/sar/hibernate"
        verbose="false">
        
        <fileset dir="${src.dir}">
            <include name="**/hibernate/*.java"/>
        </fileset>
        
        <hibernate version="2.0"/>

    </hibernatedoclet>
</target>

Generates:

Code:

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

<hibernate-mapping>
    <class
        name="com.galenworks.procedurelink.hibernate.DocumentCrossReference"
        table="DocumentXref"
        dynamic-update="false"
        dynamic-insert="false"
    >

        <id
            name="documentXrefId"
            column="documentXrefId"
            type="long"
        >
            <generator class="sequence">
                <param name="sequence">documentXrefSeq</param>
            </generator>
        </id>

        <property
            name="documentXPath"
            type="string"
            update="true"
            insert="true"
            column="documentXPath"
            length="255"
            not-null="true"
        />


[snip]


<!-- Included by Hibernate XDoclet task into the hbm.xml -->

   <any name="referredToObject" id-type="long">
       <column name="objectClass" length="128" not-null="true"/>
       <column name="objectId" not-null="true"/>
   </any>

    </class>

</hibernate-mapping>