title: Why do getNewValue() and getOldValue() are deprecated in ListEvent class in Glazed Lists?
body: <p>I would like to observe list changes in <code>EventList</code> with <a href="https://svn.java.net/svn/glazedlists~svn/tags/glazedlists-1_9_0/www/api/ca/odell/glazedlists/event/ListEvent.html" rel="nofollow"><code>ListEvent</code></a> in Glazed Lists.</p>
  
  <p>Surprisingly, methods <a href="https://svn.java.net/svn/glazedlists~svn/tags/glazedlists-1_9_0/www/api/ca/odell/glazedlists/event/ListEvent.html#getNewValue%28%29" rel="nofollow"><code>getNewValue()</code></a> also also as <code>getOldValue()</code> are deprecated without no any compos explanation.</p>
  
  <p>Why?</p>
  
  <p>How to know, which elements are added or removed then?</p>