title: Query Object Pattern (Design Pattern)
body: <p>I need to implement a Query Object Pattern in Java for my customizable search interface (of a webapp I'm writing).</p>
  
  <p>Does anybody know where I can get an example/tutorial of Query Object Pattern (Martin Fowler's QoP)?</p>
  
  <p>Thanks in Advance</p>
  
  <p><strong>ADDITION</strong> How to add a Query Pattern to an existing DAO pattern?</p>