Victor Rasputnis

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Top Stories by Victor Rasputnis

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 JavaScript and the server. AJAX isn't a new technology. It's a successful branding of possibilities implanted in several technologies available in modern browsers. All AJAX applications deliver a rich UI via extensive JavaScript manipulation of the HTML Document Object Model based on the precision-p... (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)

Adobe Flex 2: Advanced DataGrid

In Part 1 (CFDJ, Vol. 8, issue 10) we introduced the destination-aware grid, formatters, and renderers. In this article we are continuing our discussion about datagrid renderers and... RadioButtonGroupBox as Drop-In Renderer We can apply similar techniques to RadioButton controls. The following code snippet suggests how the group of RadioButton controls can be used as a drop-in item renderer (and editor). Instead of an onValue/offValue pair, we are introducing an array of options (we could have gone further and upgraded to , which is similar to the Bu... (more)

Deploy Your PowerBuilder Applications On The Web

The ability to deploy applications on the Internet or intranet has become essential for application development, especially when developing new applications with Internet/J2EE-compatible tools. For PB developers this meant that instead of a single high-level integrated environment, they had to use low-level tools and a multitude of languages and technologies, and write more code while delivering less functionality. The problem became even more apparent when they needed to transfer existing applications to the Web. As we'll see in this article, this is no longer the case. Deploymen... (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)