Hi,

I have 2 questions about using xdoclet with hibernate.
1. how can I use hibernate to generate the hibernate.cfg.xml file?

2. how to generate the column mapping for id in my <class>.cfg.xml file:
<id name="id" type="string" unsaved-value="null" >
<column name="CAT_ID" sql-type="char(32)" not-null="true"/>
<generator class="uuid.hex"/>
</id>

I try this, but what I put in the xdoclet, but the column mapping does not generate

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

this is what I get in the generated <class>.cfg.xml file (there is no 'column' children under 'id'):
<id
name="id"
column="CAT_ID"
type="java.lang.String"
unsaved-value="null"
>
<generator class="uuid.hex">
</generator>
</id>

I read the hibernate workshop presentation, but that does seems to answer my question. So I appreciate someone can help me.

Thanks in advance.

I'm not an expert on Xdoclet:
1) Not that I can see. Can generate the JBoss service file.
2) It appears to be the external column atttribute cannot be applied to the id in Xdoclet markup. To confirm for yourself, you can view the Xdoclet markup in the xdoclect-hibernate jar file (I was looking at the (almost latest) CVS version).

Thanks.

For question #2, it is actaully from the Cat example. In the Cat.hbm.xml file,

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

My question is why this line is necessary? '<column name="CAT_ID" sql-type="char(32)" not-null="true"/>'? I guess this is useful only for database creation, and Cat.hbm.xml is NOT for database creation, so why we need to put that in our Cat.hbm.xml file?

Can't I just do this instead:
<id name="id" type="string" unsaved-value="null" column="CAT_ID">
<generator class="uuid.hex"/>
</id>

Thanks for your help.

Oh OK. The separate column tag is required for the sql-type attribute. This is used if you want the schema generator tool to use the defined type rather than the default from the dialect. Otherwise there is not advantage. Most use the shortened version.