Client-side Storage. Offline Availability of Data

Abstract

Since paradigm shift from thick clients to thin ones and through growing requisition of remote services we have been facing continuous evolution of web applications. Standards and approaches of building HTML clients have been changing and now one of the biggest challenges for web application developers is issue related to client- side data storage. This paper applies to new technolo- gies specified recently by World Wide Web Consortium. These specifications refer to new methods of storing data in web clients, which can be accessed via JavaS- cript in modern web browsers. In addition, the paper introduces a design and a reference implementation of a framework for Java language and Java Server Pages technology that simplifies implementation of web based applications with client-side storage. The framework is designed for integrating Java language with above men- tioned new W3C specifications to create more powerful, modern, thin client web applications easily, without a need of knowledge of implementation details of JavaS- cript API for new technologies but using only Java lan- guage. The framework can be used to build thin clients, including mobile web-based clients that may replace not –portable, native mobile applications.