title: Eclipse Plugin Dev - Creating and updating custom markers as files are edited
body: <p>I am working on an Eclipse plugin which uses custom textmarker annotations. There are plenty of examples out there which explain how to create and delete such markers and I have this all working fine from my own event handlers (when the user clicks a 'refresh' menu item).</p>
  
  <p>However, I cannot work out how to hook the Java editor such that I can do this automatically. I would like all open Java editors to call my code at the same time that it invokes the Java compiler / spell checker / etc. so that I can add and update my annotations then. </p>
  
  <p>How do I do this, and can it be done without creating my own builder? I'd prefer that the user does not have to add a new builder themselves.</p>
  
  <p>Thanks very much</p>
  
  <p>-Ian</p>