Hibernate version:
Ejb3 backed up by hibernate boundled with jboss 4.0.4 GA i think it's 3.20 cr2

I'd like the Fetch Group feature in JDO.... i'm using Ejb3 and i'd like to have a way to build a fetch group... i mean fetch an object and all the relative associations...

it's possible using joins & fetch like i read in
http://www.hibernate.org/hib_docs/entit ... ryhql.html
at 7.3

what's the best way to store an already COMPILED version of these query?
i read that @NamedQueries are read compiled and cached at start time...
but:
- i generete by ant my pojo... at this time i don't find any way to specify custom named query
- i'd like to have more versatility.. i mean i'd like to throw away stored procedures so i'd like change/add query at runtime... i'd like to have an "admin panel" where i can see and edit my queries...

is it possible to avoid re-compile every time my query?

thanks all

For 1 use an orm.xml file
For 2 this is not possible you'll have the compile time overhead. But this is not bad since Hibernate cache (HQL) query plans.

For orm.xml file... where i can find some documentation and/or example?
In particular... is it possible to re-load orm file settings without restart applications? i think the ability to change (tweak) query without restart will be very useful!!!

[OT] is it possible to obtain by hibernate tools???

did You mean that Hibernate cache check if there's a compiled query given by the same string - ejb quey? that's cool!!!

but... if it so... what's the utility of named query???
after the first run.. everey query is cached!!!

named queries are still useful because they are tested at startup time, and I find it much cleaner in my code to have named queries

As for the doc, the orm.xml documentation, did you look at the reference documentation ;-)
http://www.hibernate.org/hib_docs/annotations/reference/en/html_single/#xml-overriding