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<div class="subTitle">org.apache.shiro.session</div>
<h2 title="Interface SessionListener" class="title">Interface SessionListener</h2>
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<pre>public interface <a href="../../../../src-html/org/apache/shiro/session/SessionListener.html#line.27">SessionListener</a></pre>
<div class="block">Interface to be implemented by components that wish to be notified of events that occur during a
<a href="../../../../org/apache/shiro/session/Session.html" title="interface in org.apache.shiro.session"><code>Session</code></a>'s life cycle.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>0.9</dd></dl>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/shiro/session/SessionListener.html#onExpiration(org.apache.shiro.session.Session)">onExpiration</a></strong>(<a href="../../../../org/apache/shiro/session/Session.html" title="interface in org.apache.shiro.session">Session</a>&nbsp;session)</code>
<div class="block">Notification callback that occurs when the corresponding Session has expired.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/shiro/session/SessionListener.html#onStart(org.apache.shiro.session.Session)">onStart</a></strong>(<a href="../../../../org/apache/shiro/session/Session.html" title="interface in org.apache.shiro.session">Session</a>&nbsp;session)</code>
<div class="block">Notification callback that occurs when the corresponding Session has started.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../org/apache/shiro/session/SessionListener.html#onStop(org.apache.shiro.session.Session)">onStop</a></strong>(<a href="../../../../org/apache/shiro/session/Session.html" title="interface in org.apache.shiro.session">Session</a>&nbsp;session)</code>
<div class="block">Notification callback that occurs when the corresponding Session has stopped, either programmatically via
<a href="../../../../org/apache/shiro/session/Session.html#stop()"><code>Session.stop()</code></a> or automatically upon a subject logging out.</div>
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<h4>onStart</h4>
<pre>void&nbsp;<a href="../../../../src-html/org/apache/shiro/session/SessionListener.html#line.34">onStart</a>(<a href="../../../../org/apache/shiro/session/Session.html" title="interface in org.apache.shiro.session">Session</a>&nbsp;session)</pre>
<div class="block">Notification callback that occurs when the corresponding Session has started.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>session</code> - the session that has started.</dd></dl>
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<h4>onStop</h4>
<pre>void&nbsp;<a href="../../../../src-html/org/apache/shiro/session/SessionListener.html#line.42">onStop</a>(<a href="../../../../org/apache/shiro/session/Session.html" title="interface in org.apache.shiro.session">Session</a>&nbsp;session)</pre>
<div class="block">Notification callback that occurs when the corresponding Session has stopped, either programmatically via
<a href="../../../../org/apache/shiro/session/Session.html#stop()"><code>Session.stop()</code></a> or automatically upon a subject logging out.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>session</code> - the session that has stopped.</dd></dl>
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<h4>onExpiration</h4>
<pre>void&nbsp;<a href="../../../../src-html/org/apache/shiro/session/SessionListener.html#line.58">onExpiration</a>(<a href="../../../../org/apache/shiro/session/Session.html" title="interface in org.apache.shiro.session">Session</a>&nbsp;session)</pre>
<div class="block">Notification callback that occurs when the corresponding Session has expired.
<p/>
<b>Note</b>: this method is almost never called at the exact instant that the <code>Session</code> expires. Almost all
session management systems, including Shiro's implementations, lazily validate sessions - either when they
are accessed or during a regular validation interval. It would be too resource intensive to monitor every
single session instance to know the exact instant it expires.
<p/>
If you need to perform time-based logic when a session expires, it is best to write it based on the
session's <a href="../../../../org/apache/shiro/session/Session.html#getLastAccessTime()"><code>lastAccessTime</code></a> and <em>not</em> the time
when this method is called.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>session</code> - the session that has expired.</dd></dl>
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