title: Spring validator: having both annotation and validator implementation
body: <p>Is it possible to have both a validator for a form and annotation constraints?</p>
  
  <p>For example to have in a form object this field:<br></p>
  
  <pre><code>@NotEmpty
  private String date;
  </code></pre>
  
  <p>but then validate the date's pattern in a validator.</p>
  
  <p>I know there is the pattern annotation but I just want to see if I can use both types of validating.</p>