r</a></dd>
</dl>
<hr>
<br>
<pre>public interface <span class="typeNameLabel">WriteListener</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">Callback notification mechanism that signals to the developer it's possible
 to write content without blocking.</div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>Servlet 3.1</dd>
</dl>
</li>
</ul>
</div>
<div 