ngleton session beans, message-driven beans, and
 enterprise bean 2.x entity beans to be registered for timer callback events at a specified time, after a specified
 elapsed time, after a specified interval, or according to a calendar-based schedule.</div>
<dl class="notes">
<dt>Since:</dt>
<dd>EJB 2.1</dd>
</dl>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ========== METHOD SUMMARY =========== -->
<li>
<section class="method-summary" id="method-summary">
<h2>Method Summary</h2>
<div 