Anatole Tartakovsky

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Top Stories by Anatole Tartakovsky

From Farata Systems blog Closures play a cornerstone role for dynamic languages. They are essential for implementing features like OO or building frameworks. At the same time, a formal definition of closures does not really help to understand them. Let us go through few examples. First, we’ll show what closures look like, and then we’ll give you their use patterns. It all starts with the use of an anonymous function that has access to variables in the outer lexical scope: import mx.controls.Alert; private var greeting:String=”Hello”; private function doInit(evt:Event) : void {   btn.addEventListener(”click”, function(evt:Event):void {   Alert.show... (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)

Converting Your Client/Server Applications to the Internet

IT projects closely follow the path of technology. .For example, the number of Java/XML/HTML projects is increasing, replacing PowerBuilder or VisualBasic systems developed just a few years ago. And developers are asking themselves the question: Do I have to write the same app from scratch? Again? Integrating existing systems developed in previous millennium environments with the Internet is a costly and difficult task. The other approach would be to "convert" existing applications to native Internet technologies. Sound complex? It's not. Legacy systems contain rich metadata, altho... (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)

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)