How to run Hibernate 3 hbm2java Ant task?

hsivonen · **Posted:** Sun May 01, 2005 3:51 pm

I checked out the Hibernate3 and HibernateExt sources from CVS and built the parts of the Hibernate 3 tools that are buildable under JDK 1.4.2 (i.e. left out metadata and ejb).

So far, I have been unable to figure out how to invoke the new Ant tasks by running Ant in Eclipse 3.0.1 on JDK 1.4.2. I can't find any docs for the Ant tasks. I am also inexperienced with Ant. Do newbie documentation and sample build.xml files exist?

(I am assuming the hbm2java CLI tool has been discontinued. I'd use it if it was available for Hibernate 3.)

hsivonen · **Posted:** Fri May 06, 2005 10:12 am

This is what I have come up with so far:

<project name="foo" default="codegen" basedir=".">
<target name="codegen" description="Run hbm2java">
<taskdef name="hibernatetool" classname="org.hibernate.tool.ant.HibernateToolTask"/>
<hibernatetool destdir="src/">
<configuration propertyfile="hibernate.properties">
<fileset dir=".">
<include name="hibernate-mapping.hbm.xml"/>
</fileset>
</configuration>
<hbm2java/>
<hbm2ddl drop="true" create="true" export="true" outputfilename="schema.sql"/>
</hibernatetool>
</target>
</project>

max · **Posted:** Fri May 06, 2005 12:37 pm

its in the docs of the latest version from jboss ide downloads.

http://cvs.sourceforge.net/viewcvs.py/* ... ml?rev=1.8

hsivonen · **Posted:** Sat May 07, 2005 7:17 am

max wrote:

its in the docs of the latest version from jboss ide downloads.

It would certainly help if the Ant task documentatian wasn't hidden among the Eclipse stuff and if the docs were visible to Google.

The DDL file doesn't have semicolons. How can I make the exporter add those? Also, it looks like the task is not attempting to connect to the database. (If the database is down, the Ant task succeeds.) How do I make the exporter connect to the db?

max · **Posted:** Sat May 07, 2005 7:35 am

the ant tasks have not yet been properly released so thats why its not on the site yet.

I've added the delimiter support just now so its in cvs.
The ant task seem to connect fine at my end...it should only NOT connect if export="false" since export defaults to true.

-max

hsivonen · **Posted:** Sat May 07, 2005 10:21 am

max wrote:

I've added the delimiter support just now so its in cvs.
The ant task seem to connect fine at my end...it should only NOT connect if export="false" since export defaults to true.

DB connection now works at my end, too. However, I said cvs up in HibernateExt and rebuilt but didn't see anything new pertaining to the semicolons.

max · **Posted:** Sat May 07, 2005 11:27 am

anoncvs is some hours behind

hsivonen · **Posted:** Sun May 08, 2005 9:54 am

I see hbm2ddl connects to the database, but the order of operations is unsuccessful. Is this a known problem? (I am using Postgres 8.) Had to fall back to 2.x schemaexport.

max · **Posted:** Sun May 08, 2005 10:05 am

AFAIK they should be identical regarding sequencing ... need more concrete informaiton.

hsivonen · **Posted:** Sun May 08, 2005 12:21 pm

Sorry. It was not a sequencing problem but a bad inverse reference in my hbm. Somehow it didn't cause bad sql in the old tools.

dragonlord · **Joined:** Fri Mar 11, 2005 7:03 am **Posts:** 2

Hi everyone!

I've been able to use the hbm2java ant task bundled in the hibernate tools 3.0 alpha. I was able to successfully run the ant task...however I encountered a small, annoying problem. The <id> tags are not generated in the POJO.

here is one of my mapping files. I've removed the other properties for brevity:

Code:

<hibernate-mapping package="com.ssi.hibernate.playground">
   <class name="PersonalInfo" table="personalinfo">
      <id name="id" type="string" length="32">
         <generator class="uuid.hex">
            <!--
            <param name="property">employee</param>
            -->
         </generator>
      </id>

      <property name="firstname" type="string" length="30" />
      <property name="middlename" type="string" length="30" />
      <property name="lastname" type="string" length="30" />
      <property name="birthdate" type="date" />
      <property name="gender" type="char" />

   </class>
</hibernate-mapping>

Currently, everytime I generate a POJO, I have to manually add the id. It's time consuming especially if you have a lot of mapping files at hand.

How do you go about this?

max · **Posted:** Wed May 11, 2005 4:52 am

yes there is a bug around this which is fixed in cvs.

dragonlord · **Joined:** Fri Mar 11, 2005 7:03 am **Posts:** 2

max wrote:

yes there is a bug around this which is fixed in cvs.

Thanks for the quick reply.

Now I have to find out how to get the files from cvs from my office....our sysad blocked almost all ports...

OT: anybody know how to tunnel CVS via http port 80? ;)