Pastebin launched a little side project called VERYVIRAL.com, check it out ;-) Want more features on Pastebin? Sign Up, it's FREE!
Guest

Untitled

By: a guest on Feb 22nd, 2012  |  syntax: None  |  size: 0.46 KB  |  views: 10  |  expires: Never
download  |  raw  |  embed  |  report abuse  |  print
Text below is selected. Please press Ctrl+C to copy to your clipboard. (⌘+C on Mac)
  1. Sometimes, you want the Database to do some computation for you rather than in the JVM, you might also create some kind of virtual column. You can use a SQL fragment (aka formula) instead of mapping a property into a column. This kind of property is read only (its value is calculated by your formula fragment).
  2.  
  3. @Formula("obj_length * obj_height * obj_width")
  4. public long getObjectVolume()
  5.  
  6. The SQL fragment can be as complex as you want and even include subselects.
clone this paste RAW Paste Data