Hibernate version: 3.05

Name and version of the database you are using: MySQL

I implement my POJOs with use of interfaces. E.g.

interface Person {
}

class PersonImpl implements Person, Serializable {
}

This force me to use HQL by means of the implementation class, which is natural. E.g. 'from PersonImpl p'.

Does it exist a way to map this so I can make use of the interface instead?
Fx. 'from Person p'

The XxxImpl doesn't look so nice when you have several joined statements.

Cheers,

Ove

before posting it is a good thing to actually try the solutions you are asking for..."from Person" works.

I forgot to mention I use XDoclet 1.2.3.

As XDoclet tags are annotated in the implementation classes; XDoclet produce a file named XxxImpl.hbm.xml. The side effect of this is that I have to use XxxImpl in my queries.

There is a solution, just add:

<move todir="${maven.build.dir}/classes">
<fileset dir="${maven.build.dir}/classes">
<include name="**/*.hbm.xml"/>
</fileset>
<mapper type="glob" from="*Impl.hbm.xml" to="*.hbm.xml"/>
</move>

after the hibernate-doclet task. Then all files will truncate the Impl-part of the filename.

Cheers,

Ove

did you actually try executing "from Person" ? It works..

Yes I did. Like this;

public List getUsers(User user) {
return getHibernateTemplate().find("from PersonImpl u order by upper(u.username)");
}

When i issued Person it failed.

Ove

could it be that your class is not named Person but something like my.package.Person ? Then you of course need to tell hibernate about since it is not in the default package as you stated in your postings.

So, either do "from my.package.Person" or use the <import> tag in your hbm.xml e.g. <import class="org.hibernate.test.Person"/>

next time, please post stacktrace or something instead of just say it errors....thank you

Max means the interface is not named Person. And he is exactly right. You need to add an explicit <import>

argh - where is the semantical spellchekker when i need one...

My project is getting quite sized and with lot's of dependencies. Right now my sources are broken due to refactoring... I check out the the <import> when I'm up again.

Thanks a lot for your inputs!

Cheers,
Ove

This will only work if the interface Parent is also annotated/mapped ?

I have been trying this with annotations, trying to keep my interface clear of any persistence annotation, and "from my.package.Person" does not seem to work in this case. Have I missed something ?

thanks
davidv

it should work without any annotations afaik...