1 package org.apache.turbine.modules.actions.sessionvalidator;
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19 import org.apache.turbine.modules.Action;
20
21 /***
22 * The SessionValidator attempts to retrive the User object from the
23 * Servlet API session that is associated with the request. If the
24 * data cannot be retrieved, it is handled here. If the user has not
25 * been marked as being logged into the system, the user is rejected
26 * and the screen is set to the screen.homepage value in
27 * TurbineResources.properties.
28 *
29 * <p>
30 *
31 * Other systems generally have a database table which stores this
32 * information, but we take advantage of the Servlet API here to save
33 * a hit to the database for each and every connection that a user
34 * makes.
35 *
36 * <p>
37 *
38 * This action is special in that it should only be executed by the
39 * Turbine servlet.
40 *
41 * @author <a href="mailto:mbryson@mont.mindspring.com">Dave Bryson</a>
42 * @version $Id: SessionValidator.java 264148 2005-08-29 14:21:04Z henning $
43 */
44 public abstract class SessionValidator extends Action
45 {
46 }