examples-trunk/schedule-expression/README.html - tomee-site-pub - Git at Google

 <!DOCTYPE html>
 <html lang="en">
   <head>

     <meta charset="UTF-8">
       <title>Schedule Expression</title>
     <meta name="description" content="Apache TomEE">
     <meta name="author" content="Apache TomEE">
     <meta name="google-translate-customization" content="f36a520c08f4c9-0a04e86a9c075ce9-g265f3196f697cf8f-10">
     <meta http-equiv="Pragma" content="no-cache">
     <meta http-equiv="Expires" content="0">
     <meta http-equiv="Cache-Control" content="no-store, no-cache, must-revalidate, max-age=0">

     <!-- Le HTML5 shim, for IE6-8 support of HTML elements -->
     <!--[if lt IE 9]>
       <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
     <![endif]-->

     <!-- Le styles -->
     <link href="./../../resources/css/bootstrap.css" rel="stylesheet">
     <link href="./../../resources/css/prettify.css" rel="stylesheet">
     <!--link href="./../../resources/css/bootstrap-mods.css" rel="stylesheet"-->
     <link href="./../../resources/css/main.css" rel="stylesheet">
     <link href="./../../resources/font-awesome-4.6.3/css/font-awesome.min.css" rel="stylesheet">

     <script type="text/javascript">
         var t = encodeURIComponent(document.title.replace(/^\s+|\s+$/g,""));
         var u = encodeURIComponent(""+document.URL);

       function fbshare () {
           window.open(
                   "http://www.facebook.com/sharer/sharer.php?u="+u,
                   'Share on Facebook',
                   'width=640,height=426');
       };
       function gpshare () {
           window.open(
                   "https://plus.google.com/share?url="+u,
                   'Share on Google+',
                   'width=584,height=385');
       };
       function twshare () {
           window.open(
                   "https://twitter.com/intent/tweet?url="+u+"&text="+t,
                   'Share on Twitter',
                   'width=800,height=526');
       };
       function pinshare () {
           window.open("//www.pinterest.com/pin/create/button/?url="+u+"&media=http%3A%2F%2Ftomee.apache.org%2Fresources%2Fimages%2Ffeather-logo.png&description="+t,
                   'Share on Pinterest',
                   'width=800,height=526');
       };
     </script>

     <!-- Le fav and touch icons -->
     <link rel="shortcut icon" href="./../../favicon.ico">
     <link rel="apple-touch-icon" href="./../../resources/images/apple-touch-icon.png">
     <link rel="apple-touch-icon" sizes="72x72" href="./../../resources/images/apple-touch-icon-72x72.png">
     <link rel="apple-touch-icon" sizes="114x114" href="./../../resources/images/apple-touch-icon-114x114.png">

     <script src="./../../resources/js/prettify.js" type="text/javascript"></script>
     <script src="./../../resources/js/jquery-latest.js"></script>
     <script src="http://platform.twitter.com/widgets.js" type="text/javascript"></script>
     <script src="./../../resources/js/common.js"></script>
     <script src="./../../resources/js/prettyprint.js"></script>
     <!--script src="//assets.pinterest.com/js/pinit.js" type="text/javascript" async></script//-->

     <script type="text/javascript">

       var _gaq = _gaq || [];
       _gaq.push(['_setAccount', 'UA-2717626-1']);
       _gaq.push(['_setDomainName', 'apache.org']);
       _gaq.push(['_trackPageview']);

       (function() {
         var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
         ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
         var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
       })();

     </script>
   </head>

   <body>

     <div class="topbar" data-dropdown="dropdown">
       <div class="fill">
         <div class="container">
           <a class="brand" href="./../../index.html">Apache TomEE</a>
           <ul class="nav">
               <li class="dropdown">
                   <a class="dropdown-toggle" data-toggle="dropdown" href="#">
                   Apache
                       <b class="caret"></b>
                   </a>
                   <ul class="dropdown-menu">
                      <!-- <li><a href="./../../misc/whoweare.html">Who we are?</a></li> -->
                      <!-- <li><a href="./../../misc/heritage.html">Heritage</a></li> -->
                      <li><a href="http://www.apache.org">Apache Home</a></li>
                      <!-- <li><a href="./../../misc/resources.html">Resources</a></li> -->
                      <li><a href="./../../misc/contact.html">Contact</a></li>
                      <li><a href="./../../misc/legal.html">Legal</a></li>
                      <li><a href="http://www.apache.org/foundation/sponsorship.html">Sponsorship</a></li>
                      <li><a href="http://www.apache.org/foundation/thanks.html">Thanks</a></li>
                      <li class="divider"/>
                      <li><a href="http://www.apache.org/security">Security</a></li>
                   </ul>
               </li>
               <li><a href="./../../index.html">Home</a></li>
               <li><a href="./../../downloads.html">Downloads</a></li>
               <li><a href="./../../documentation.html">Documentation</a></li>
               <li><a href="./../../examples-trunk/index.html">Examples</a></li>
               <li><a href="./../../support.html">Support</a></li>
               <li><a href="./../../contribute.html">Contribute</a></li>
               <li><a href="./../../security/index.html">Security</a></li>
           </ul>

             <!-- Google CSE Search Box Begins  -->
             <FORM class="pull-right" id="searchbox_010475492895890475512:_t4iqjrgx90" action="http://www.google.com/cse">
                 <INPUT type="hidden" name="cx" value="010475492895890475512:_t4iqjrgx90">
                 <INPUT type="hidden" name="cof" value="FORID:0">
                 <INPUT size="18" width="130" style="width:130px" name="q" type="text" placeholder="Search">
             </FORM>
             <!--<SCRIPT type="text/javascript" src="http://www.google.com/coop/cse/brand?form=searchbox_010475492895890475512:_t4iqjrgx90"></SCRIPT>-->
             <!-- Google CSE Search Box Ends -->
         </div>
       </div>
     </div>

     <div class="container">


 <div class="row">
     <div class="span8">
         <small><a href="./../../index.html">Home</a>&nbsp;&raquo&nbsp;<a href="./../../examples-trunk/">Examples Trunk</a>&nbsp;&raquo&nbsp;<a href="./../../examples-trunk/schedule-expression/">Schedule Expression</a></small><br>
     </div>
     <div class="span8">
     </div>
 </div>
 &nbsp;
 <div class="page-header">
 <h1>Schedule Expression

     <div style="float: right; position: relative; bottom: -10px; ">
 	<div id="google_translate_element"></div><script type="text/javascript">
 function googleTranslateElementInit() {
   new google.translate.TranslateElement({pageLanguage: 'en', layout: google.translate.TranslateElement.InlineLayout.SIMPLE}, 'google_translate_element');
 }
 </script><script type="text/javascript" src="//translate.google.com/translate_a/element.js?cb=googleTranslateElementInit"></script>
         <a onclick="javascript:gpshare()" class="gp-share sprite" title="Share on Google+">share [gp]</a>
         <a onclick="javascript:fbshare()" class="fb-share sprite" title="Share on Facebook">share [fb]</a>
         <a onclick="javascript:twshare()" class="tw-share sprite" title="Share on Twitter">share [tw]</a>
         <a onclick="javascript:pinshare()" class="pin-share sprite" title="Share on Pinterest">share [pin]</a>
         <a data-toggle="modal" href="#edit" class="edit-page" title="Contribute to this Page">contribute</a>
     </div>
 </h1>
 </div>

 <p>In this example we exercise the <code>TimerService</code>.</p>

 <blockquote>
   <p>"The TimerService interface provides enterprise bean components with access to the container-provided Timer Service.
   The EJB Timer Service allows entity beans, stateless session beans, and message-driven beans to be registered for timer
   callback events at a specified time, after a specified elapsed time, or after a specified interval."</p>
 </blockquote>

 <p>For a complete description of the TimerService, please refer to the Java EE tutorial dedicated to the
 <a href="http://docs.oracle.com/javaee/6/tutorial/doc/bnboy.html">Timer Service</a>.</p>

 <h2>FarmerBrown</h2>

 <p>At <code>PostConstruct</code> we create 5 programmatic timers. First four will most likely not be triggered during the test
 execution, however the last one will timeout a couple of times.</p>

 <p>Each timer contains an info attribute, which can be inspected at timeout.   </p>

 <pre><code>package org.superbiz.corn;

 import javax.annotation.PostConstruct;
 import javax.annotation.Resource;
 import javax.ejb.Lock;
 import javax.ejb.LockType;
 import javax.ejb.ScheduleExpression;
 import javax.ejb.Singleton;
 import javax.ejb.Startup;
 import javax.ejb.Timeout;
 import javax.ejb.Timer;
 import javax.ejb.TimerConfig;
 import javax.ejb.TimerService;
 import java.util.concurrent.atomic.AtomicInteger;

 /**
  * This is where we schedule all of Farmer Brown's corn jobs
  *
  * @version $Revision$ $Date$
  */
 @Singleton
 @Lock(LockType.READ) // allows timers to execute in parallel
 @Startup
 public class FarmerBrown {

     private final AtomicInteger checks = new AtomicInteger();

     @Resource
     private TimerService timerService;

     @PostConstruct
     private void construct() {
         final TimerConfig plantTheCorn = new TimerConfig("plantTheCorn", false);
         timerService.createCalendarTimer(new ScheduleExpression().month(5).dayOfMonth("20-Last").minute(0).hour(8), plantTheCorn);
         timerService.createCalendarTimer(new ScheduleExpression().month(6).dayOfMonth("1-10").minute(0).hour(8), plantTheCorn);

         final TimerConfig harvestTheCorn = new TimerConfig("harvestTheCorn", false);
         timerService.createCalendarTimer(new ScheduleExpression().month(9).dayOfMonth("20-Last").minute(0).hour(8), harvestTheCorn);
         timerService.createCalendarTimer(new ScheduleExpression().month(10).dayOfMonth("1-10").minute(0).hour(8), harvestTheCorn);

         final TimerConfig checkOnTheDaughters = new TimerConfig("checkOnTheDaughters", false);
         timerService.createCalendarTimer(new ScheduleExpression().second("*").minute("*").hour("*"), checkOnTheDaughters);
     }

     @Timeout
     public void timeout(Timer timer) {
         if ("plantTheCorn".equals(timer.getInfo())) {
             plantTheCorn();
         } else if ("harvestTheCorn".equals(timer.getInfo())) {
             harvestTheCorn();
         } else if ("checkOnTheDaughters".equals(timer.getInfo())) {
             checkOnTheDaughters();
         }
     }

     private void plantTheCorn() {
         // Dig out the planter!!!
     }

     private void harvestTheCorn() {
         // Dig out the combine!!!
     }

     private void checkOnTheDaughters() {
         checks.incrementAndGet();
     }

     public int getChecks() {
         return checks.get();
     }
 }
 </code></pre>

 <h2>FarmerBrownTest</h2>

 <p>The test class acquires an instance from the context and waits for 5 seconds to give the timers a chance to timeout.</p>

 <pre><code>package org.superbiz.corn;

 import junit.framework.TestCase;

 import javax.ejb.embeddable.EJBContainer;
 import javax.naming.Context;

 import static java.util.concurrent.TimeUnit.SECONDS;

 /**
  * @version $Revision$ $Date$
  */
 public class FarmerBrownTest extends TestCase {

     public void test() throws Exception {

         final Context context = EJBContainer.createEJBContainer().getContext();

         final FarmerBrown farmerBrown = (FarmerBrown) context.lookup("java:global/schedule-expression/FarmerBrown");

         // Give Farmer brown a chance to do some work
         Thread.sleep(SECONDS.toMillis(5));

         final int checks = farmerBrown.getChecks();
         assertTrue(checks + "", checks &gt; 4);
     }
 }
 </code></pre>

 <h1>Running</h1>

 <pre><code>-------------------------------------------------------
  T E S T S
 -------------------------------------------------------
 Running org.superbiz.corn.FarmerBrownTest
 Apache OpenEJB 4.0.0-beta-1    build: 20111002-04:06
 http://tomee.apache.org/
 INFO - openejb.home = /Users/dblevins/examples/schedule-expression
 INFO - openejb.base = /Users/dblevins/examples/schedule-expression
 INFO - Using 'javax.ejb.embeddable.EJBContainer=true'
 INFO - Configuring Service(id=Default Security Service, type=SecurityService, provider-id=Default Security Service)
 INFO - Configuring Service(id=Default Transaction Manager, type=TransactionManager, provider-id=Default Transaction Manager)
 INFO - Found EjbModule in classpath: /Users/dblevins/examples/schedule-expression/target/classes
 INFO - Beginning load: /Users/dblevins/examples/schedule-expression/target/classes
 INFO - Configuring enterprise application: /Users/dblevins/examples/schedule-expression
 WARN - Method 'lookup' is not available for 'javax.annotation.Resource'. Probably using an older Runtime.
 INFO - Configuring Service(id=Default Singleton Container, type=Container, provider-id=Default Singleton Container)
 INFO - Auto-creating a container for bean FarmerBrown: Container(type=SINGLETON, id=Default Singleton Container)
 INFO - Configuring Service(id=Default Managed Container, type=Container, provider-id=Default Managed Container)
 INFO - Auto-creating a container for bean org.superbiz.corn.FarmerBrownTest: Container(type=MANAGED, id=Default Managed Container)
 INFO - Enterprise application "/Users/dblevins/examples/schedule-expression" loaded.
 INFO - Assembling app: /Users/dblevins/examples/schedule-expression
 INFO - Jndi(name="java:global/schedule-expression/FarmerBrown!org.superbiz.corn.FarmerBrown")
 INFO - Jndi(name="java:global/schedule-expression/FarmerBrown")
 INFO - Jndi(name="java:global/EjbModule481105279/org.superbiz.corn.FarmerBrownTest!org.superbiz.corn.FarmerBrownTest")
 INFO - Jndi(name="java:global/EjbModule481105279/org.superbiz.corn.FarmerBrownTest")
 INFO - Created Ejb(deployment-id=org.superbiz.corn.FarmerBrownTest, ejb-name=org.superbiz.corn.FarmerBrownTest, container=Default Managed Container)
 INFO - Created Ejb(deployment-id=FarmerBrown, ejb-name=FarmerBrown, container=Default Singleton Container)
 INFO - Started Ejb(deployment-id=org.superbiz.corn.FarmerBrownTest, ejb-name=org.superbiz.corn.FarmerBrownTest, container=Default Managed Container)
 INFO - Started Ejb(deployment-id=FarmerBrown, ejb-name=FarmerBrown, container=Default Singleton Container)
 INFO - Deployed Application(path=/Users/dblevins/examples/schedule-expression)
 Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 6.141 sec

 Results :

 Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
 </code></pre>


 <div class="page-header">&nbsp;</div>
 <h4>APIs Used</h4>
 <ul><li><a href="http://docs.oracle.com/javaee/6/api/javax/annotation/PostConstruct.html">javax.annotation.PostConstruct</a></li>
 <li><a href="http://docs.oracle.com/javaee/6/api/javax/annotation/Resource.html">javax.annotation.Resource</a></li>
 <li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/Lock.html">javax.ejb.Lock</a></li>
 <li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/LockType.html">javax.ejb.LockType</a></li>
 <li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/ScheduleExpression.html">javax.ejb.ScheduleExpression</a></li>
 <li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/Singleton.html">javax.ejb.Singleton</a></li>
 <li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/Startup.html">javax.ejb.Startup</a></li>
 <li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/Timeout.html">javax.ejb.Timeout</a></li>
 <li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/Timer.html">javax.ejb.Timer</a></li>
 <li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/TimerConfig.html">javax.ejb.TimerConfig</a></li>
 <li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/TimerService.html">javax.ejb.TimerService</a></li>
 <li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/embeddable/EJBContainer.html">javax.ejb.embeddable.EJBContainer</a></li>
 <li><a href="http://docs.oracle.com/javaee/6/api/javax/naming/Context.html">javax.naming.Context</a></li>
 </ul>

 <h3>Source</h3>
   <ul>
       <li>Apache <a href="http://svn.apache.org/repos/asf/tomee/tomee/trunk/examples/schedule-expression">schedule-expression</a></li>
       <li>Github <a href="https://github.com/apache/tomee/tree/trunk/examples/schedule-expression">schedule-expression</a></li>
   </ul>
 <pre>
 svn co http://svn.apache.org/repos/asf/tomee/tomee/trunk/examples/schedule-expression
 cd schedule-expression
 mvn clean install
 </pre>


         <div id="edit" class="modal hide fade in" style="display: none; ">
             <div class="modal-header">
                 <a class="close" data-dismiss="modal">x</a>

                 <h3>Thank you for contributing to the documentation!</h3>
             </div>
             <div class="modal-body">
                 <h4>Any help with the documentation is greatly appreciated.</h4>
                 <p>All edits are reviewed before going live, so feel free to do much more than fix typos or links.  If you see a page that could benefit from an entire rewrite, we'd be thrilled to review it.  Don't be surprised if we like it so much we ask you for help with other pages :)</p>
                 <small>NOTICE: unless indicated otherwise on the pages in question, all editable content available from apache.org is presumed to be licensed under the Apache License (AL) version 2.0 and hence all submissions to apache.org treated as formal Contributions under the license terms.</small>
                 <!--[if gt IE 6]>
                 <h4>Internet Explorer Users</h4>
                 <p>If you are not an Apache committer, click the Yes link and enter a <i>anonymous</i> for the username and leave the password empty</p>
                 <![endif]-->

             </div>
             <div class="modal-footer">
                 Do you have an Apache ID?
                 <a href="javascript:void(location.href='https://cms.apache.org/redirect?uri='+escape(location.href))" class="btn">Yes</a>
                 <a href="javascript:void(location.href='https://anonymous:@cms.apache.org/redirect?uri='+escape(location.href))" class="btn">No</a>
             </div>
         </div>
         <script src="./../../resources/js/bootstrap-modal.js"></script>

         <footer>
             <p>Copyright &copy; 1999-2016 The Apache Software Foundation, Licensed under the Apache License, Version 2.0.
                 Apache TomEE, TomEE, Apache, the Apache feather logo, and the Apache TomEE project logo are trademarks of The Apache Software Foundation.
                 All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p>
         </footer>

     </div> <!-- /container -->

     <!-- Javascript
     ================================================== -->
     <!-- Placed at the end of the document so the pages load faster -->
     <script src="./../../resources/js/bootstrap-dropdown.js"></script>

   </body>
 </html>
	<!DOCTYPE html>
	<html lang="en">
	<head>

	<meta charset="UTF-8">
	<title>Schedule Expression</title>
	<meta name="description" content="Apache TomEE">
	<meta name="author" content="Apache TomEE">
	<meta name="google-translate-customization" content="f36a520c08f4c9-0a04e86a9c075ce9-g265f3196f697cf8f-10">
	<meta http-equiv="Pragma" content="no-cache">
	<meta http-equiv="Expires" content="0">
	<meta http-equiv="Cache-Control" content="no-store, no-cache, must-revalidate, max-age=0">

	<!-- Le HTML5 shim, for IE6-8 support of HTML elements -->
	<!--[if lt IE 9]>
	<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
	<![endif]-->

	<!-- Le styles -->
	<link href="./../../resources/css/bootstrap.css" rel="stylesheet">
	<link href="./../../resources/css/prettify.css" rel="stylesheet">
	<!--link href="./../../resources/css/bootstrap-mods.css" rel="stylesheet"-->
	<link href="./../../resources/css/main.css" rel="stylesheet">
	<link href="./../../resources/font-awesome-4.6.3/css/font-awesome.min.css" rel="stylesheet">

	<script type="text/javascript">
	var t = encodeURIComponent(document.title.replace(/^\s+\|\s+$/g,""));
	var u = encodeURIComponent(""+document.URL);

	function fbshare () {
	window.open(
	"http://www.facebook.com/sharer/sharer.php?u="+u,
	'Share on Facebook',
	'width=640,height=426');
	};
	function gpshare () {
	window.open(
	"https://plus.google.com/share?url="+u,
	'Share on Google+',
	'width=584,height=385');
	};
	function twshare () {
	window.open(
	"https://twitter.com/intent/tweet?url="+u+"&text="+t,
	'Share on Twitter',
	'width=800,height=526');
	};
	function pinshare () {
	window.open("//www.pinterest.com/pin/create/button/?url="+u+"&media=http%3A%2F%2Ftomee.apache.org%2Fresources%2Fimages%2Ffeather-logo.png&description="+t,
	'Share on Pinterest',
	'width=800,height=526');
	};
	</script>

	<!-- Le fav and touch icons -->
	<link rel="shortcut icon" href="./../../favicon.ico">
	<link rel="apple-touch-icon" href="./../../resources/images/apple-touch-icon.png">
	<link rel="apple-touch-icon" sizes="72x72" href="./../../resources/images/apple-touch-icon-72x72.png">
	<link rel="apple-touch-icon" sizes="114x114" href="./../../resources/images/apple-touch-icon-114x114.png">

	<script src="./../../resources/js/prettify.js" type="text/javascript"></script>
	<script src="./../../resources/js/jquery-latest.js"></script>
	<script src="http://platform.twitter.com/widgets.js" type="text/javascript"></script>
	<script src="./../../resources/js/common.js"></script>
	<script src="./../../resources/js/prettyprint.js"></script>
	<!--script src="//assets.pinterest.com/js/pinit.js" type="text/javascript" async></script//-->

	<script type="text/javascript">

	var _gaq = _gaq \|\| [];
	_gaq.push(['_setAccount', 'UA-2717626-1']);
	_gaq.push(['_setDomainName', 'apache.org']);
	_gaq.push(['_trackPageview']);

	(function() {
	var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
	ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
	var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
	})();

	</script>
	</head>

	<body>

	<div class="topbar" data-dropdown="dropdown">
	<div class="fill">
	<div class="container">
	<a class="brand" href="./../../index.html">Apache TomEE</a>
	<ul class="nav">
	<li class="dropdown">
	<a class="dropdown-toggle" data-toggle="dropdown" href="#">
	Apache
	<b class="caret"></b>
	</a>
	<ul class="dropdown-menu">
	<!-- <li><a href="./../../misc/whoweare.html">Who we are?</a></li> -->
	<!-- <li><a href="./../../misc/heritage.html">Heritage</a></li> -->
	<li><a href="http://www.apache.org">Apache Home</a></li>
	<!-- <li><a href="./../../misc/resources.html">Resources</a></li> -->
	<li><a href="./../../misc/contact.html">Contact</a></li>
	<li><a href="./../../misc/legal.html">Legal</a></li>
	<li><a href="http://www.apache.org/foundation/sponsorship.html">Sponsorship</a></li>
	<li><a href="http://www.apache.org/foundation/thanks.html">Thanks</a></li>
	<li class="divider"/>
	<li><a href="http://www.apache.org/security">Security</a></li>
	</ul>
	</li>
	<li><a href="./../../index.html">Home</a></li>
	<li><a href="./../../downloads.html">Downloads</a></li>
	<li><a href="./../../documentation.html">Documentation</a></li>
	<li><a href="./../../examples-trunk/index.html">Examples</a></li>
	<li><a href="./../../support.html">Support</a></li>
	<li><a href="./../../contribute.html">Contribute</a></li>
	<li><a href="./../../security/index.html">Security</a></li>
	</ul>

	<!-- Google CSE Search Box Begins -->
	<FORM class="pull-right" id="searchbox_010475492895890475512:_t4iqjrgx90" action="http://www.google.com/cse">
	<INPUT type="hidden" name="cx" value="010475492895890475512:_t4iqjrgx90">
	<INPUT type="hidden" name="cof" value="FORID:0">
	<INPUT size="18" width="130" style="width:130px" name="q" type="text" placeholder="Search">
	</FORM>
	<!--<SCRIPT type="text/javascript" src="http://www.google.com/coop/cse/brand?form=searchbox_010475492895890475512:_t4iqjrgx90"></SCRIPT>-->
	<!-- Google CSE Search Box Ends -->
	</div>
	</div>
	</div>

	<div class="container">


	<div class="row">
	<div class="span8">
	<small><a href="./../../index.html">Home</a> &raquo <a href="./../../examples-trunk/">Examples Trunk</a> &raquo <a href="./../../examples-trunk/schedule-expression/">Schedule Expression</a></small><br>
	</div>
	<div class="span8">
	</div>
	</div>

	<div class="page-header">
	<h1>Schedule Expression

	<div style="float: right; position: relative; bottom: -10px; ">
	<div id="google_translate_element"></div><script type="text/javascript">
	function googleTranslateElementInit() {
	new google.translate.TranslateElement({pageLanguage: 'en', layout: google.translate.TranslateElement.InlineLayout.SIMPLE}, 'google_translate_element');
	}
	</script><script type="text/javascript" src="//translate.google.com/translate_a/element.js?cb=googleTranslateElementInit"></script>
	<a onclick="javascript:gpshare()" class="gp-share sprite" title="Share on Google+">share [gp]</a>
	<a onclick="javascript:fbshare()" class="fb-share sprite" title="Share on Facebook">share [fb]</a>
	<a onclick="javascript:twshare()" class="tw-share sprite" title="Share on Twitter">share [tw]</a>
	<a onclick="javascript:pinshare()" class="pin-share sprite" title="Share on Pinterest">share [pin]</a>
	<a data-toggle="modal" href="#edit" class="edit-page" title="Contribute to this Page">contribute</a>
	</div>
	</h1>
	</div>

	<p>In this example we exercise the <code>TimerService</code>.</p>

	<blockquote>
	<p>"The TimerService interface provides enterprise bean components with access to the container-provided Timer Service.
	The EJB Timer Service allows entity beans, stateless session beans, and message-driven beans to be registered for timer
	callback events at a specified time, after a specified elapsed time, or after a specified interval."</p>
	</blockquote>

	<p>For a complete description of the TimerService, please refer to the Java EE tutorial dedicated to the
	<a href="http://docs.oracle.com/javaee/6/tutorial/doc/bnboy.html">Timer Service</a>.</p>

	<h2>FarmerBrown</h2>

	<p>At <code>PostConstruct</code> we create 5 programmatic timers. First four will most likely not be triggered during the test
	execution, however the last one will timeout a couple of times.</p>

	<p>Each timer contains an info attribute, which can be inspected at timeout. </p>

	<pre><code>package org.superbiz.corn;

	import javax.annotation.PostConstruct;
	import javax.annotation.Resource;
	import javax.ejb.Lock;
	import javax.ejb.LockType;
	import javax.ejb.ScheduleExpression;
	import javax.ejb.Singleton;
	import javax.ejb.Startup;
	import javax.ejb.Timeout;
	import javax.ejb.Timer;
	import javax.ejb.TimerConfig;
	import javax.ejb.TimerService;
	import java.util.concurrent.atomic.AtomicInteger;

	/**
	* This is where we schedule all of Farmer Brown's corn jobs
	*
	* @version $Revision$ $Date$
	*/
	@Singleton
	@Lock(LockType.READ) // allows timers to execute in parallel
	@Startup
	public class FarmerBrown {

	private final AtomicInteger checks = new AtomicInteger();

	@Resource
	private TimerService timerService;

	@PostConstruct
	private void construct() {
	final TimerConfig plantTheCorn = new TimerConfig("plantTheCorn", false);
	timerService.createCalendarTimer(new ScheduleExpression().month(5).dayOfMonth("20-Last").minute(0).hour(8), plantTheCorn);
	timerService.createCalendarTimer(new ScheduleExpression().month(6).dayOfMonth("1-10").minute(0).hour(8), plantTheCorn);

	final TimerConfig harvestTheCorn = new TimerConfig("harvestTheCorn", false);
	timerService.createCalendarTimer(new ScheduleExpression().month(9).dayOfMonth("20-Last").minute(0).hour(8), harvestTheCorn);
	timerService.createCalendarTimer(new ScheduleExpression().month(10).dayOfMonth("1-10").minute(0).hour(8), harvestTheCorn);

	final TimerConfig checkOnTheDaughters = new TimerConfig("checkOnTheDaughters", false);
	timerService.createCalendarTimer(new ScheduleExpression().second("").minute("").hour("*"), checkOnTheDaughters);
	}

	@Timeout
	public void timeout(Timer timer) {
	if ("plantTheCorn".equals(timer.getInfo())) {
	plantTheCorn();
	} else if ("harvestTheCorn".equals(timer.getInfo())) {
	harvestTheCorn();
	} else if ("checkOnTheDaughters".equals(timer.getInfo())) {
	checkOnTheDaughters();
	}
	}

	private void plantTheCorn() {
	// Dig out the planter!!!
	}

	private void harvestTheCorn() {
	// Dig out the combine!!!
	}

	private void checkOnTheDaughters() {
	checks.incrementAndGet();
	}

	public int getChecks() {
	return checks.get();
	}
	}
	</code></pre>

	<h2>FarmerBrownTest</h2>

	<p>The test class acquires an instance from the context and waits for 5 seconds to give the timers a chance to timeout.</p>

	<pre><code>package org.superbiz.corn;

	import junit.framework.TestCase;

	import javax.ejb.embeddable.EJBContainer;
	import javax.naming.Context;

	import static java.util.concurrent.TimeUnit.SECONDS;

	/**
	* @version $Revision$ $Date$
	*/
	public class FarmerBrownTest extends TestCase {

	public void test() throws Exception {

	final Context context = EJBContainer.createEJBContainer().getContext();

	final FarmerBrown farmerBrown = (FarmerBrown) context.lookup("java:global/schedule-expression/FarmerBrown");

	// Give Farmer brown a chance to do some work
	Thread.sleep(SECONDS.toMillis(5));

	final int checks = farmerBrown.getChecks();
	assertTrue(checks + "", checks > 4);
	}
	}
	</code></pre>

	<h1>Running</h1>

	<pre><code>-------------------------------------------------------
	T E S T S
	-------------------------------------------------------
	Running org.superbiz.corn.FarmerBrownTest
	Apache OpenEJB 4.0.0-beta-1 build: 20111002-04:06
	http://tomee.apache.org/
	INFO - openejb.home = /Users/dblevins/examples/schedule-expression
	INFO - openejb.base = /Users/dblevins/examples/schedule-expression
	INFO - Using 'javax.ejb.embeddable.EJBContainer=true'
	INFO - Configuring Service(id=Default Security Service, type=SecurityService, provider-id=Default Security Service)
	INFO - Configuring Service(id=Default Transaction Manager, type=TransactionManager, provider-id=Default Transaction Manager)
	INFO - Found EjbModule in classpath: /Users/dblevins/examples/schedule-expression/target/classes
	INFO - Beginning load: /Users/dblevins/examples/schedule-expression/target/classes
	INFO - Configuring enterprise application: /Users/dblevins/examples/schedule-expression
	WARN - Method 'lookup' is not available for 'javax.annotation.Resource'. Probably using an older Runtime.
	INFO - Configuring Service(id=Default Singleton Container, type=Container, provider-id=Default Singleton Container)
	INFO - Auto-creating a container for bean FarmerBrown: Container(type=SINGLETON, id=Default Singleton Container)
	INFO - Configuring Service(id=Default Managed Container, type=Container, provider-id=Default Managed Container)
	INFO - Auto-creating a container for bean org.superbiz.corn.FarmerBrownTest: Container(type=MANAGED, id=Default Managed Container)
	INFO - Enterprise application "/Users/dblevins/examples/schedule-expression" loaded.
	INFO - Assembling app: /Users/dblevins/examples/schedule-expression
	INFO - Jndi(name="java:global/schedule-expression/FarmerBrown!org.superbiz.corn.FarmerBrown")
	INFO - Jndi(name="java:global/schedule-expression/FarmerBrown")
	INFO - Jndi(name="java:global/EjbModule481105279/org.superbiz.corn.FarmerBrownTest!org.superbiz.corn.FarmerBrownTest")
	INFO - Jndi(name="java:global/EjbModule481105279/org.superbiz.corn.FarmerBrownTest")
	INFO - Created Ejb(deployment-id=org.superbiz.corn.FarmerBrownTest, ejb-name=org.superbiz.corn.FarmerBrownTest, container=Default Managed Container)
	INFO - Created Ejb(deployment-id=FarmerBrown, ejb-name=FarmerBrown, container=Default Singleton Container)
	INFO - Started Ejb(deployment-id=org.superbiz.corn.FarmerBrownTest, ejb-name=org.superbiz.corn.FarmerBrownTest, container=Default Managed Container)
	INFO - Started Ejb(deployment-id=FarmerBrown, ejb-name=FarmerBrown, container=Default Singleton Container)
	INFO - Deployed Application(path=/Users/dblevins/examples/schedule-expression)
	Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 6.141 sec

	Results :

	Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
	</code></pre>


	<div class="page-header"> </div>
	<h4>APIs Used</h4>
	<ul><li><a href="http://docs.oracle.com/javaee/6/api/javax/annotation/PostConstruct.html">javax.annotation.PostConstruct</a></li>
	<li><a href="http://docs.oracle.com/javaee/6/api/javax/annotation/Resource.html">javax.annotation.Resource</a></li>
	<li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/Lock.html">javax.ejb.Lock</a></li>
	<li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/LockType.html">javax.ejb.LockType</a></li>
	<li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/ScheduleExpression.html">javax.ejb.ScheduleExpression</a></li>
	<li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/Singleton.html">javax.ejb.Singleton</a></li>
	<li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/Startup.html">javax.ejb.Startup</a></li>
	<li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/Timeout.html">javax.ejb.Timeout</a></li>
	<li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/Timer.html">javax.ejb.Timer</a></li>
	<li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/TimerConfig.html">javax.ejb.TimerConfig</a></li>
	<li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/TimerService.html">javax.ejb.TimerService</a></li>
	<li><a href="http://docs.oracle.com/javaee/6/api/javax/ejb/embeddable/EJBContainer.html">javax.ejb.embeddable.EJBContainer</a></li>
	<li><a href="http://docs.oracle.com/javaee/6/api/javax/naming/Context.html">javax.naming.Context</a></li>
	</ul>

	<h3>Source</h3>
	<ul>
	<li>Apache <a href="http://svn.apache.org/repos/asf/tomee/tomee/trunk/examples/schedule-expression">schedule-expression</a></li>
	<li>Github <a href="https://github.com/apache/tomee/tree/trunk/examples/schedule-expression">schedule-expression</a></li>
	</ul>
	<pre>
	svn co http://svn.apache.org/repos/asf/tomee/tomee/trunk/examples/schedule-expression
	cd schedule-expression
	mvn clean install
	</pre>


	<div id="edit" class="modal hide fade in" style="display: none; ">
	<div class="modal-header">
	<a class="close" data-dismiss="modal">x</a>

	<h3>Thank you for contributing to the documentation!</h3>
	</div>
	<div class="modal-body">
	<h4>Any help with the documentation is greatly appreciated.</h4>
	<p>All edits are reviewed before going live, so feel free to do much more than fix typos or links. If you see a page that could benefit from an entire rewrite, we'd be thrilled to review it. Don't be surprised if we like it so much we ask you for help with other pages :)</p>
	<small>NOTICE: unless indicated otherwise on the pages in question, all editable content available from apache.org is presumed to be licensed under the Apache License (AL) version 2.0 and hence all submissions to apache.org treated as formal Contributions under the license terms.</small>
	<!--[if gt IE 6]>
	<h4>Internet Explorer Users</h4>
	<p>If you are not an Apache committer, click the Yes link and enter a <i>anonymous</i> for the username and leave the password empty</p>
	<![endif]-->

	</div>
	<div class="modal-footer">
	Do you have an Apache ID?
	<a href="javascript:void(location.href='https://cms.apache.org/redirect?uri='+escape(location.href))" class="btn">Yes</a>
	<a href="javascript:void(location.href='https://anonymous:@cms.apache.org/redirect?uri='+escape(location.href))" class="btn">No</a>
	</div>
	</div>
	<script src="./../../resources/js/bootstrap-modal.js"></script>

	<footer>
	<p>Copyright © 1999-2016 The Apache Software Foundation, Licensed under the Apache License, Version 2.0.
	Apache TomEE, TomEE, Apache, the Apache feather logo, and the Apache TomEE project logo are trademarks of The Apache Software Foundation.
	All other marks mentioned may be trademarks or registered trademarks of their respective owners.</p>
	</footer>

	</div> <!-- /container -->

	<!-- Javascript
	================================================== -->
	<!-- Placed at the end of the document so the pages load faster -->
	<script src="./../../resources/js/bootstrap-dropdown.js"></script>

	</body>
	</html>