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<h2 title="Interface HttpSessionActivationListener" class="title">Interface HttpSessionActivationListener</h2>
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<pre>public interface <span class="strong">HttpSessionActivationListener</span>
extends java.util.EventListener</pre>
<div class="block">Objects that are bound to a session may listen to container
 events notifying them that sessions will be passivated and that
 session will be activated. A container that migrates session between VMs
 or persists sessions is required to notify all attributes bound to sessions
 implementing HttpSessionActivationListener.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpSessionActivationListener.html#sessionDidActivate(javax.servlet.http.HttpSessionEvent)">sessionDidActivate</a></strong>(<a href="../../../javax/servlet/http/HttpSessionEvent.html" title="class in javax.servlet.http">HttpSessionEvent</a>&nbsp;se)</code>
<div class="block">Notification that the session has just been activated.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../javax/servlet/http/HttpSessionActivationListener.html#sessionWillPassivate(javax.servlet.http.HttpSessionEvent)">sessionWillPassivate</a></strong>(<a href="../../../javax/servlet/http/HttpSessionEvent.html" title="class in javax.servlet.http">HttpSessionEvent</a>&nbsp;se)</code>
<div class="block">Notification that the session is about to be passivated.</div>
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<h4>sessionWillPassivate</h4>
<pre>void&nbsp;sessionWillPassivate(<a href="../../../javax/servlet/http/HttpSessionEvent.html" title="class in javax.servlet.http">HttpSessionEvent</a>&nbsp;se)</pre>
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<pre>void&nbsp;sessionDidActivate(<a href="../../../javax/servlet/http/HttpSessionEvent.html" title="class in javax.servlet.http">HttpSessionEvent</a>&nbsp;se)</pre>
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