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JPA fetch with params

surlac surlacovich
Ranch Hand

Joined: Mar 12, 2013
Posts: 296

Hello Folks!
I need to create generic method to fetch from DB with JPA. It means it can receive parameters which will narrow the results down. The implementation that I have:

I'm just wondering, how to replace this boilerplate code? Is there any way where I can just write like this:

Usage:
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: JPA fetch with params