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Victor Rasputnis

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Top Stories by Victor Rasputnis

Let's face it - rewriting an existing application from platform to platform is not fun. But many businesses successfully served with PowerBuilder applications are rewriting parts of PB apps for the Web and maintaining the same functionality in PowerBuilder and Java, PowerBuilder and C#, etc. Faced with this problem we decided to create a product called "XML Server Pages" that uses our DW2Java/DW2Net converters to automatically convert existing DataWindows into sets of J2EE or .NET objects - ready to run on the Web. For reporting applications of any complexity, including heavy financial calculations and nested and composite reports, it means 100% automatic deployment of the entire system on the Web for external users. For data entry systems, some additional browser-side scripting is required. Most important, though, you can maintain one set of DataWindows and use them... (more)

Meet AJAX: 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)

Developing Intelligent Web Applications With AJAX (Part 2)

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 adopte... (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)

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)