title: Spring scope references as enums?
body: <p>Maybe I'm missing something, but isn't there any class that provides <code>Scope.PROTOTYPE, Scope.SINGLETON</code> static references?</p>
  
  <p>Or do I always have to use non-typesafe strings as scopes?</p>
  
  <pre><code>@Scope("prototype")
  @Scope("singleton")
  </code></pre>