title: @QueryParam regex expression
body: <p>I am using Jersey for Rest and have a method that accepts <code>@QueryParam.</code></p>
  
  <p>However, the users may send <code>@QueryParam.</code> like this:</p>
  
  <p><code>contractName#</code> where <code>#</code> is a number from 0-155.</p>
  
  <p>How can I define it in QueryParam (like regex expression)?</p>