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Victor Rasputnis

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Top Stories by Victor Rasputnis

The publicity that AJAX grabbed over the last half a year is based on closing the gap between the Web applications and the desktop applications, combining the "reach" and "rich." At the same time, the gap between the technological level of AJAX and what corporate developers expect in their modern arsenal is really astonishing. After all, AJAX is neither a tool nor a platform. There is no AJAX standards committee or community process in place. While software vendors are crafting proprietary development platforms on top of AJAX (which pretty much means "from scratch"), early adopters of AJAX are left on their own. In Part 1 (JDJ, Vol. 10, issue 9) we touched on the foundation of AJAX - the ability to establish script-to-server communication. This is what makes HTML pages dynamic and responsive. Does it mean we are ready to kick-off our own version of Yahoo mail? No, ... (more)

Rich Internet Applications with Adobe Flex 2 and Java

A typical Java developer knows that when you need to develop a GUI for a Java application, Swing is the tool. Eclipse SWT also has a number of followers, but the majority of people use Java Swing. For the past 10 years, it was a given that Swing development wouldn't be easy; you have to master working with the event-dispatch thread, GridBaglayout, and the like. Recently, the NetBeans team created a nice GUI designer called Matisse, which was also ported to MyEclipse. Prior to Matisse, JBuilder had the best Swing designer, but it was too expensive. Now a good designer comes with N... (more)

End-to-End Rapid Application Development with Data Services & Adobe Flex

The simplest way to explain Flex Data Services (FDS) is to compare them with Flex Remoting. Simply put, FDS addresses only a subset of operations facilitated via Flex Remoting - result set requests. However, whereas Flex Remoting enables one-way requests, FDS combines one-way requests with the publish/subscribe mechanism so that besides the original result set FDS sends the client live updates produced by other clients of the same destination. And there's one more dimension in which Data Services depart from Flex Remoting - support for hierarchical collections, but we won't be co... (more)

HyperText Objects or the PowerBuilder VM Anywhere Part 2

In Part 1 of this article (PBDJ, Vol. 8, issue 12) we presented the technology for building and using HyperTextObjects (HTOs). HTOs enable authoring of powerful HTML/JavaScript controls that can easily mimic the functionality and APIs of PowerBuilder controls. Now we will explain how HTO technology enables you to rebuild an entire PB Virtual Machine for the Web. Then, addressing the business purpose - that your Web application code can become a simple line-by-line port of the original PB app - we'll demonstrate an integrated example based on PowerBuilder's Data Explorer demo scr... (more)

Intelligent Web Applications with AJAX

Browser-based applications are widely used and we like the fact that we can access them from anywhere. But from the users' perspective, the productivity level of Web applications still doesn't approximate the productivity of desktop programs. The good news is the gap is closing: the accumulated potential of multiple technologies has boosted a whole new breed of HTML-based apps that are as powerful as the desktop ones. Meet AJAX. What Is AJAX? The name stands for Asynchronous JavaScript + XMLHTTPRequest and means you can establish socket communication between browser-based JavaScri... (more)