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The following page has been changed by MichaelJouravlev: http://wiki.apache.org/struts/StrutsManualActionClasses ------------------------------------------------------------------------------ Behavior object handles a group of related messages (events, commands). These messages often correspond to one business object, like classic Create, Retrieve, Update and Delete messages that identify basic operations on persistent objects in a database-driven application. Behavior object usually changes application state based on incoming message. Application state can be stored in database, flat file or in a scoped object like !HttpSession or !HttpServletRequest. A behavior object has methods that correspond to incoming messages. Therefore an Action that manages a persistent object will likely have create(), retrieve(), update() and delete() methods. Each method is triggered with a specific parameter sent in a request. + + inline:event_dispatcher.gif Struts Extras package allows to define behavior objects with one of subclasses of Action class: DispatchAction, LookupDispatchAction, MappingDispatchAction, EventDispatchAction. These subclasses decode an event from incoming request and dispatch it to a corresponding event handler. The exact way of defining events depends on specific Action subclass.
