title: utilizing JPA Named Queries
body: <p>When I create an Entity class from a database in NetBeans, it gives me the option to create Named Queries from persistent fields. Accordingly, I see these named queries listed at the top of my Entity class. </p>
  
  <p>What exactly are these queries, and how can I utilize/"call" them? </p>
  
  <p>I'm aware this question is more general than is preferred on SO, so I'm happy to accept a link to a tutorial that answers these questions, but I've been unable to find one myself. </p>