Hello,

I am working on a web based application and we are considering Hibernate as our O/R mapping tool. I am very new to hibernate, having only gone through a couple of tutorials.

Different pages in our application display different columns from the same tables. I was wondering if there is a way to obtain a partially populated persistent object with only the fields needed for each particular page.

I searched around the documentation and googled a bit and wasn't able to find the answer.

Thanks in advance for any help.
Eraser

After some more research, I found out that this can be done by creating constructors that take only the fields to be displayed/manipulated in each page. However, we would like to use middlegen to generate our mapping files and hbm2java to generate our Java source, therefore I don't think this approach would work for us.

If there is a way to have hbm2java generate the required constructors please let me know.

Thanks,
Eraser

Again apologies for replying to myself, but I think I found an acceptable solution and I would like to post it for the benefit of others.

Seems like using the Hibernate Synchronizer Eclipse Plugin (http://www.binamics.com/hibernatesynch/) will work for what we want to do since it generates base classes and a class extending the base class.

When regenerating, only the base class is overwritten. Since the custom constructors are placed in the child class, they are not lost when the code is regenerated.

Seems to me that this is a better solution than going with Middlegen and hbm2java to generate the mapping files and source.

Eraser