C++ brought into vogue the concept of interfaces, abstractness, and
implementations. Java went a step further and formalized them with proper
keywords for each of the concepts. There are a substantial number of patterns
in which interfaces, abstract classes, and classes can be combined for
various purposes. You only have to look at the book Design Patterns, by Erich
Gamma et al (Addison-Wesley), to realize the importance of recognizing these
constructs.
Constructing a software program that you expect to have a long life is an
attempt to evolve its functionality over time, without abandoning older
behavior for backward compatibility. This is a lot more essential when you're
designing libraries and frameworks. The newer libraries should work with
older systems that were ... (more)
A Web portal is an application that aggregates multiple Web applications on a
single Web page. Popular examples of portals are My Yahoo (my.yahoo.com) and
My MSN (my.msn.com). These portals allow users to aggregate multiple Web
applications (like Stock Quote, News, and Weather). In addition these portals
allow users to personalize and customize the presentation and content of the
individ... (more)
XML/XSL are widely used for publishing and EDI. This article shows how
XML/XSL can be used effectively for IT Web development by overcoming the
disparities between relational data and XML.
What's the best way to develop Web applications driven by relational
databases (the backbone of current IT)? Would the answer lead us down the
road to XML/XSL? If so, how can we convert relational data ... (more)
In Part 1 of this article (XML-J, Vol. 2, issue 4) I discussed the motivation
and desire to adapt XSL and JSP to transform the pervasive relational data to
HTML.
In Part 2 I discuss a Java-centric design approach to converting relational
data to an XML DOM and how Xalan can transform the XML DOM to HTML. In
addition, I provide sample code for both Xerces and Xalan. I also demonstrate
pr... (more)
Satya Komatineni is Chief Technology Officer of INDENT, Inc and the author of a Java based RAD framework for developing J2EE based HTML applications. The product has the distinction of supporting multiple html transformations (XSL,JSP, proprietary templates) while utilizing the same data abstraction to interact with EJBs, relational databases and ERP systems. After earning an M.S. in Electrical Engineering from Indian Institute of Technology, New Delhi, worked with LAN based collaboration technologies, C++ patterns and frameworks, Java and Web based frameworks in a distributed environment.
Jagan Nemani
Pavel Klimov
Steve Beaty
Manas Sarkar
Bhupesh Naik
Lavenya Dilip
