I have three Types of objects: Test, TestRequirement and Question.
One test relates to many testRequirements.
One test relates to many questions generated according to testRequirements.
One testRequirement relates to many questions.

With relational database, I know I can use one table to contain all the relations, such table has the following columns:
tid-------------test id
qid------------question id
trid------------testRequirement id

What I wanna know is how to map such complex table with hibernate ?
Any help (better with XDoclet tags) is appreciated.

Thanks !

I would have thought you would just map the table as you have shown with three one-to-manys . Im not sure what the issue is here. Maybe you should read the parent child documentation and look at XDoclet samples.