xdoclet and composite keys, just doesn't work?

mikesu · **Joined:** Sun Apr 04, 2004 6:19 am **Posts:** 15

Hibernate version: 2.1.7
xDoclet version: 1.2.2

I have problems with table with composite key having many-to-many relationship with other table.

This is what I write in javadoc for the relation (PARAMETER_NAME and PARAMETER_TYPE form a composite key):

Code:

    /** 
     *            @hibernate.set
     *             lazy="true"
     *             cascade="none"
     *             table="MM_ATT_SET_TYPE_PARAM_INFO"
     *            @hibernate.collection-key
     *             column="ATTRIBUTE_SET_TYPE_ID"
     *
     *
     *            @hibernate.collection-many-to-many
     *             class="com.biofrontera.discovery.hibernate.ParameterInfo"
     *             column="PARAMETER_NAME"
     *            @hibernate.collection-many-to-many
     *             class="com.biofrontera.discovery.hibernate.ParameterInfo"
     *             column="PARAMETER_TYPE"
     *         
     */

xDoclet translates that into (i.e. loses key column):

Code:

      <many-to-many
                  class="com.biofrontera.discovery.hibernate.ParameterInfo"
                  column="PARAMETER_NAME"
                  outer-join="auto"
               />

instead of:

Code:

        <many-to-many
            class="com.biofrontera.discovery.hibernate.ParameterInfo"
        >
            <column name="PARAMETER_NAME" />
            <column name="PARAMETER_TYPE" />
        </many-to-many>

is it a xdoclet bug/"feature" or I am doing something wrong?

david · **Posted:** Wed Dec 08, 2004 6:40 am

Try:

Code:

    /**
     *            @hibernate.set
     *             lazy="true"
     *             cascade="none"
     *             table="MM_ATT_SET_TYPE_PARAM_INFO"
     *
     *            @hibernate.collection-key
     *             column="ATTRIBUTE_SET_TYPE_ID"
     *
     *            @hibernate.collection-many-to-many
     *             class="com.biofrontera.discovery.hibernate.ParameterInfo"
     *            @hibernate.column="PARAMETER_NAME"
     *            @hibernate.column="PARAMETER_TYPE"
     *         
     */ 

I did not try it so YMMV.

mikesu · **Joined:** Sun Apr 04, 2004 6:19 am **Posts:** 15

Nope, doesn't work... Same result:

Code:

              <many-to-many
                  class="com.biofrontera.discovery.hibernate.ParameterInfo"
                  column="PARAMETER_NAME"
                  outer-join="auto"
               />

:(

michael · **Posted:** Wed Dec 08, 2004 10:58 am

Dump xdoclet :) Really, if you can, the composite-key part of xdoclet always makes problems.

mikesu · **Joined:** Sun Apr 04, 2004 6:19 am **Posts:** 15

michael wrote:

Dump xdoclet :) Really, if you can, the composite-key part of xdoclet always makes problems.

Yep :(

I need this composite key, because I want to have polymorphism in Parameter table on Parameter_Type field...

Is it possible to have discriminator field not in the main (I use on table per hierarchy) table? I.e. on a field from the other table with many-to-one relationship? Probably not :(

david · **Posted:** Wed Dec 08, 2004 9:07 pm

XDoclet normally gets the key information for composite keys from the Key class itself. Anyway, maybe XDoclet 2 will be better, I Understand alot of recent work has been done on the hibernate doclet for it.

david · **Posted:** Wed Dec 08, 2004 9:09 pm

Link xdoclet 2 plugin http://www.sourceforge.net/projects/xdoclet-plugins/

mikesu · **Joined:** Sun Apr 04, 2004 6:19 am **Posts:** 15

Sry, but where can I get the xdoclet2? (I guess it's required by the plugin)

What I see on http://xdoclet.codehaus.org/ is a 14kb jar ^^

ko5tik · **Posted:** Mon Dec 13, 2004 12:37 pm

mikesu wrote:

Sry, but where can I get the xdoclet2? (I guess it's required by the plugin)

What I see on http://xdoclet.codehaus.org/ is a 14kb jar ^^

It's true. xdoclet-2 is pretty small... - it's plugins who do the job.

You could steal maven invocation code from build xdoclet-plugins, and it will download all dependencies for you atomatically...