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    <p>Generally, the server (Tomcat, Glassfish...) that hosts the web application handles a timeout for a session.</p> <p>For example, in Tomcat, you can define the session timeout for a particular web application by adding the folowing lines in the <code>web.xml</code> file:</p> <pre><code>&lt;session-config&gt; &lt;session-timeout&gt;30&lt;/session-timeout&gt; &lt;/session-config&gt; </code></pre> <p>This will set the timeout to 30 minutes.</p> <p>When a user does not send any request during a time greater that this defined timeout, the session on the server is invalidated. If the user tries to reconnect after the session has been invalidated, he will generally be redirected to another page or to an error page.</p> <p>You can develop your own JSF Filter that will automatically redirect the user to a <code>timeout.html</code> page. Here is an example of such a filter :</p> <pre><code>public class TimeoutFilter implements Filter { private static final String TIMEOUT_PAGE = "timeout.html"; private static final String LOGIN_PAGE = "login.faces"; public void init(FilterConfig filterConfig) throws ServletException { } public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws IOException, ServletException { if ((request instanceof HttpServletRequest) &amp;&amp; (response instanceof HttpServletResponse)) { HttpServletRequest requestHttp = (HttpServletRequest) request; HttpServletResponse responseHttp = (HttpServletResponse) response; if (checkResource(requestHttp)) { String requestPath = requestHttp.getRequestURI(); if (checkSession(requestHttp)) { String timeoutUrl = hRequest.getContextPath() + "/" + TIMEOUT_PAGE; responseHttp.sendRedirect(timeoutUrl); return; } } filterChain.doFilter(request, response); } private boolean checkResource(HttpServletRequest request) { String requestPath = request.getRequestURI(); return !(requestPath.contains(TIMEOUT_PAGE) || requestPath.contains(LOGIN_PAGE) || requestPath.equals(hRequest.getContextPath() + "/")); } private boolean checkSession(HttpServletRequest request) { return request.getRequestedSessionId() != null &amp;&amp; !request.isRequestedSessionIdValid(); } public void destroy() { } } </code></pre>
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    1. COthis will fail when you will access for the first time a url not in your checkResource method. isn't it? wouldn't you get then a session expired behaviour even tho you are just accessing the page for the first time?
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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