Often it is necessary to be notified, whenever a user logs in or out. This tutorial shows, how this can be achieved with tapestry 5 using form based authentication supported by a web container like tomcat. A really nice design decision of tapestry 5 is not to use XML for configuration, but pure Java. Beside avoiding most of the configuration overhead by following the paradigm Convention over Configuration, there are service classes being responsible for the configuration as defining filters or customized dependency injection and much more. Read More