span>
extends <a href="http://docs.oracle.com/javase/8/docs/api/java/util/EventListener.html?is-external=true" title="class or interface in java.util">EventListener</a></pre>
<div class="block">This models a <code>WorkListener</code> instance which would be notified
 by the <code>WorkManager</code> when the various <code>Work</code> 
 processing events (work accepted, work rejected, work started, 
 work completed) occur.

 The <code>WorkListener</code> instance must not make any thread 
 assumptions and mus