Dear All
I need to use middlegen to generate HibernateMapping with Hibernate3.0 DTD.

I read documents from hibernate website

http://www.hibernate.org/98.html

It said as below

The Hibernate plugin generates the XML mapping document for Hibernate 2 only (This can be easily changed with additional templates). The motivation for this that a single output stream is easier to be maintained. Following is an example of the a mapping file generated by the plugin.

But I still dont know how to easily do this. Did any of you have idea?
could you throw some lights on it?

Thanks and Rgds

Middlegen has supported Hibenate 3 mapping for quite some time. I commited the changes a very long time ago. Just include the Version tag in the Ant script to "3.0" and it will work fine. See online Middlegen documentation.
One thing, I do suggest you get the latest build from CVS.

I have updated that wiki page to provide the information on setting the version property for Hibernate 3.0 mapping files.

yeah I did the same but the syntax in this mapping file is still Hiberante2.0
My question is how to generate mapping file which use hibernate 3.0 syntax

Hello

Thanks for your input

But I didnot find middlegen2.2 as you said
I only find midddlegen 2.1 from http://boss.bekk.no/boss/middlegen/

could you point me a link for middlegen2.2 download?
Thanks

I never did get around to releasing it. Get it from CVS. Instructions are on the Middlegen web site.

Hello I try to download from CVS from below link
http://sourceforge.net/cvs/?group_id=36044



But it always have problem as below error message shown


Could not connect to :pserver:anonymous@middlegen.cvs.sourceforge.net:/cvsroot/middlegen: I/O exception occurred: Connection refused: Fatal error, aborting. anoncvs_middlegen: no such system user

Source forge did change the location of projects at some point - maybe docs are slightly incorrect. Check the project information and general information on source forge for correct location.

Hey David

I check out middlegen from CVS successfully today.
it works now.
Thanks

Hello David

Thanks for your input

according to your suggestion. I go further with your Middlegen 2.2 tool.

But I still have 3 questions


1) do i need modify section of <taskdef name="hibernatedoclet"...
as below shown ? , orignal value is "2.0" , this modification is not
address in your WIKI website

<hibernate version="3.0"/>

2) when I try to generate hibernate mapping file agaisnt my Database
I always get below exception which leads me confused.

The relationshipRole's orign must be OFFER_GROUP_MEMBERS,but was
OFFER_GROUP_MEMBERS.

what does it mean?

3) When I looked mapping file which is genernated from middlegen2.2
Actually,it is not much different with mapping file generated from
middlegen 2.1 , only <meta> and DTD are changed. rest parts are almost same. it is correct?

Thanks and Rgds

Hello David

Moreover I found one problme with middlegen generated so called "hibernate3.0 supported" mapping.

the problem is althoug DTD is changed to hibernate 3.0 but
then content is still based on hibernate2.0 syntax.

Look below example

<one-to-one
name="offer"
class="com.x1.x2.hibernate.Offer"
outer-join="auto"
.......

for Hibernate 3.0
out-join is not used in one-to-one mapping.

How do i used middlegen 2.2 to generated mapping file which use
hibernate 3.0 syntax?

Thanks

You may have found a bug in the velocity template. H2 is mostly a subset of H3 so in general it should all be fine. The template only need to check the version and remove the attribute. It is an easy fix. Once you have done it send me the patch and I will commit it.