OpenFaces is a JSF library for building dynamic Web applications. It includes an extended set of JSF components, Ajax framework and a validation framework that shifts the traditional JSF validation to the client side. The library introduces such advanced components as DataTable, TreeTable, DayTable, Window, BorderLayoutPanel providing the developer with rich functionality and customization capabilities. With OpenFaces components, you do less coding, as most of the features needed to bring interactivity to your Web application are already there. Thanks to such features as Ajax support and keyboard navigation, the OpenFaces library simplifies development of Web applications, and also makes them highly interactive and user-friendly. Among other library features the following are worth to be mentioned - rich and flexible styling, enhanced end-user experience, support for all major browsers, comprehensive documentation. With the OpenFaces validation framework, you can now use standard JSF validators on the client side by assigning them to any input component, both from JSF and OpenFaces library. Or, by the same token, use additionally provided OpenFaces validators that work equally well on the client and server side. The OpenFaces validation framework supports a variety of usage scenarios where data should be validated, ensuring that validation rules are met and data types are correct already on the client, promptly notifying the user of any possible errors. In addition, it provides a flexible mechanism to configure the default validation errors presentation.

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