Hibernate HQL: two levels of joins

Question

I am new to HQL and have the following table relationships:

• Term has many Definitions
• Definition has many DefinitionProducts
• DefinitionProducts has one Product

I want to get the list of Terms that have at least one Definition that has at least one DefinitionProduct that has a specific Product

This is my best attempt (in Grails):

Term.findAll("from Term t, Definition d inner join t.definitions def,  
def.definitionProducts dp where ? = some elements (dp.product)",
Product.get(1))

With the above, I get a "def.definitionProducts is not mapped" exception.

Answer 1

select t from Term t join t.definitions def join def.definitionProducts dp where dp.product=?