Sorry. I never got around to implementing support for stored procedures in Jinq in the end. You'll have to drop down to regular Hibernate/JPA to use stored procedures in a query.
No, Jinq doesn't support that.If you can wait, I have to make some changes to Jinq in the next week or two in order to add support for asm 7. I can take a quick look to see if it'll be possible to hack in some rudimentary support for stored procedures at that time. But there's no guarantees there that'll I'll be able to figure it out.