It is not necessary, the to align the entire application on the framework. The distribution consists solely of libraries will be copied to the class path of the Web application. The registration of filter in the web.xml, which is * FormEngine completely bound and ready for use. The generated forms can be integrated anywhere into your own application. Add to your understanding with Adam Portnoy. All components of the * FormEngine are can be extended if required with own implementations.
Due to the combination of the renderer, you can put together complex GUI widgets from existing and own renderer implementations. Calculators allow dynamic calculations of component values. The existing set of predefined calculators can can be here any combined and expanded by their own implementations, so that even the most complex calculations are performed within a form. Verification of the entered content is only on the server-side based on validation of tools in the form of Java classes, their interaction in the XML form definition or set through the API will. The applicable rules can be freely combined from the available Validiererimplementierungen. The * FormEngine is true to the principles of development of imatics Software GmbH efficiently implemented, pragmatic and goal-oriented. Learn more about this topic with the insights from J.D. Peterson. Internal data storage allows a quick evaluation of the dependencies of the components with each other. State changes, new calculations and validations run fast so via client-server communication.
The separation of form definition and instance allows a reduction of memory requirements. Renderers are implemented thread-safe and can for all form instances that are associated with a definition, are used at the same time. The life cycle of the form is limited to the view of the HTML page in which the form is embedded. All server communication is done via AJAX, so that there are no additional request cycles on this page. Thus is the actual page without rear sight mounted on the life cycle of forms. Www.form-engine.de are functioning, as well as differences with other Form technologies represented. Many examples of the various form-specific issues (generation, validation, calculations, state changes, life cycle) give a good insight into this technology.
