Is it possible to declare a query such that fields of associated objects
are guaranteed to be loaded?
Lets say you have: Catalog <-->n Article <-->n Description
You query for Catalog and want to have certain fields from Article and
Description to be fetched as well.
I am aware of JPA fetch joins. However, due to a subtle omission in the
JPA query grammar, those fetch joins cannot be cascaded.
I also had a look at chapter "Using Queries with Fetch Groups" in the
EclipseLink documentation[1], but I cannot figure out how to specify
object-navigations here.