http://pbdj.sys-con.com/ Latest articles from PB & Java Copyright 2008 POWERBUILDER JOURNAL Sat, 17 May 2008 14:27:00 GMT POWERBUILDER JOURNAL 10 http://backend.userland.com/rss http://pbdj.sys-con.com/read/463309.htmhttp://pbdj.sys-con.com/read/463309.htm Thu, 07 Feb 2008 12:15:00 GMT Key opinion-formers in the field of infrastructure and pioneers of virtualization technologies of all types have already begun submitting speaking proposals to Virtualization Conference & Expo 2008 East, being held in New York City, 23-24 June, 2008. Topics covered will range from Server Virtualization, Application Virtualization, Desktop Virtualization, Network Virtualization, I/O Virtualization and Storage Virtualization, to Virtual Machine Automation, Physical to Virtual (P2V) Migration, Management Applications, Tools and Utilities, and Virtualization Scripts and Procedures. http://pbdj.sys-con.com/read/42451.htmhttp://pbdj.sys-con.com/read/42451.htm Sat, 01 Jun 2002 00:00:00 GMT Welcome to JSP Corner. For those of you who are just joining us, in this column I've been demonstrating how to write JSP applications; I've focused on writing the Sybase eMusic application and converting it from PowerDynamo to JavaServer Pages (JSP). http://pbdj.sys-con.com/read/42447.htmhttp://pbdj.sys-con.com/read/42447.htm Wed, 01 May 2002 00:00:00 GMT What state am I in? Denial, confusion, Virginia...if you want your Web site to keep track of state between requests, you'll need to understand the Session API portion of the Java servlet and JSP specifications. http://pbdj.sys-con.com/read/42427.htmhttp://pbdj.sys-con.com/read/42427.htm Fri, 01 Mar 2002 00:00:00 GMT Welcome to JSP Corner, Part 4. We'll be adding some more features to our eMusic application, which we started putting together in Part 3 (PBDJ, Vol. 8, issue 12). We looked at the Logon process and built the Logon.jsp, validateLogon.jsp, and LogonError.htm pages. http://pbdj.sys-con.com/read/42415.htmhttp://pbdj.sys-con.com/read/42415.htm Fri, 01 Feb 2002 00:00:00 GMT The current PSR compatibility issues between PowerBuilder and the PowerJ Java DataWindow can be resolved using PowerScript and Java source to pass a DataWindow object's FullState, bringing your PowerBuilder reporting applications into the Java realm. http://pbdj.sys-con.com/read/42405.htmhttp://pbdj.sys-con.com/read/42405.htm Sat, 01 Dec 2001 00:00:00 GMT Welcome back to JSP Corner. In this article we look at how to build a simple logon page that collects data through an HTML form and sends it to a JSP page for processing. This is a simple task that involves several aspects of Web development in JSP, including the retrieval of data from a request and page redirection. http://pbdj.sys-con.com/read/42380.htmhttp://pbdj.sys-con.com/read/42380.htm Mon, 01 Oct 2001 00:00:00 GMT Welcome back to the JSP Corner. In this series, we're looking at developing Web applications using Java-Server Pages (JSP) and Jaguar CTS (aka EAServer). In Part 1 of this series (PBDJ, Vol. 8, issue 9), we looked at the advantages JSP has over competitive dynamic page server technologies. We also examined page-based and class-based development. In this article, we'll look at setting up the development environment, so we can start building a Web application using JSP and servlet technologies. http://pbdj.sys-con.com/read/42372.htmhttp://pbdj.sys-con.com/read/42372.htm Sat, 01 Sep 2001 00:00:00 GMT For developers looking at the complex problem of building Web applications that produce dynamically generated content, using JavaServer Pages (JSP) is an excellent solution. JSP is a Web-scripting specification developed by Sun and the Java Community Process (JCP) and implemented by various vendors in their products. The JSP specification defines a dynamic page-based technology that relies on scripts and tags to build Web applications similar to Microsoft Active Server Pages (ASP), Sybase PowerDynamo, and Macromedia/Allaire ColdFusion. http://pbdj.sys-con.com/read/42349.htmhttp://pbdj.sys-con.com/read/42349.htm Sun, 01 Jul 2001 00:00:00 GMT In Part 1 (PBDJ, Vol. 8, issue 5) I showed you how to use simple graphics within your applet. Polygons, ovals, lines, and text cover a lot of ground. The remaining graphic object you need is an image. Images in Java are bitmapped GIF or JPEG files that can contain pictures of just about anything. You can use any program to create them as long as that program can save in the GIF or JPEG format. In Part 2, I show how to add niceties, such as color and fonts, to your applet. http://pbdj.sys-con.com/read/42340.htmhttp://pbdj.sys-con.com/read/42340.htm Fri, 01 Jun 2001 00:00:00 GMT In this issue Tim Nesham covers in-depth the TRY-CATCH-FINALLY block, which is new to PowerBuilder 8. But what is really happening behind the scenes? This article will give some historical background on PowerBuilder, but will also focus on PowerBuilder exception handling. http://pbdj.sys-con.com/read/42332.htmhttp://pbdj.sys-con.com/read/42332.htm Tue, 01 May 2001 00:00:00 GMT Complex graphics programming is something we rarely do in PowerBuilder. Most of the programs we write include objects that interact with the user and usually don't require graphics. http://pbdj.sys-con.com/read/42322.htmhttp://pbdj.sys-con.com/read/42322.htm Sun, 01 Apr 2001 00:00:00 GMT My last two articles focused on the fundamentals of Java and the utility that Java offers. Last month you learned how to create and run a simple applet. http://pbdj.sys-con.com/read/42325.htmhttp://pbdj.sys-con.com/read/42325.htm Sun, 01 Apr 2001 00:00:00 GMT This article demonstrates how to use JavaServer Pages (JSP) to manipulate PowerBuilder DataWindows. We'll create a Jaguar- CTS component in PowerBuilder and call it from JSP. Using techniques from our Hepek Dual Architecture Framework, we'll show how to Web-enable your existing DataWindows in a matter of minutes. http://pbdj.sys-con.com/read/42306.htmhttp://pbdj.sys-con.com/read/42306.htm Thu, 01 Mar 2001 00:00:00 GMT This month we'll discuss how to build and deploy simple Java applets. By the end of this article, you should have the skill set needed to write, compile, deploy, and run simple Java applets. As you'll soon see, the coding portion of this is relatively easy. The real challenge is understanding the process, which will be my focus. Of course, I'll relate the material to the PowerBuilder knowledge you already know and love. http://pbdj.sys-con.com/read/42287.htmhttp://pbdj.sys-con.com/read/42287.htm Thu, 01 Feb 2001 00:00:00 GMT Many PowerBuilder developers have tried writing Web applications in EAServer, building long strings of HTML in their components to create on-the-fly Web pages. Sometimes you get good response time...and sometimes the response time gets you. http://pbdj.sys-con.com/read/42266.htmhttp://pbdj.sys-con.com/read/42266.htm Sun, 01 Oct 2000 00:00:00 GMT Most PowerBuilder developers are aware of object-oriented concepts like inheritance, encapsulation, and polymorphism. A lot has been said about them, and I don't want to reinvent the wheel by discussing what they are and how they're used in PB applications. The main purpose of this article is to explain one of the lesser known concepts of object-oriented programming, namely, upcasting. Later I'll give an example of method and variable overriding in conjunction with upcasting in PowerBuilder and how it differs in Java. http://pbdj.sys-con.com/read/42196.htmhttp://pbdj.sys-con.com/read/42196.htm Thu, 15 Jun 2000 00:00:00 GMT One of the greatest selling points of the PowerJ development environment is its ability to use DataWindows. The same DataWindow that's created in PowerBuilder, and a major contributor to the success of that environment, is available to the Java programmer who uses PowerJ. http://pbdj.sys-con.com/read/42187.htmhttp://pbdj.sys-con.com/read/42187.htm Mon, 01 May 2000 00:00:00 GMT Java servlets, one of the hottest topics in programming today, are Java's method of writing CGI-type programs that interact with the Web browser and deliver dynamic HTML pages to the end user. Traditionally these programs have been written in C++ or Perl. Since C++ is compiled to native code and Perl requires an interpreter that's slightly different for each operating system platform, you're forced to maintain different versions of the programs for each target operating system. http://pbdj.sys-con.com/read/106447.htmhttp://pbdj.sys-con.com/read/106447.htm Mon, 01 Feb 1999 00:00:00 GMT In Part 1 of this article (PBDJ, Vol. 7, issue 1) I compared Java to PowerScript. We covered some of the fundamentals of Java language - identifiers, primitive data types and primitive data type wrappers - and PowerBuilder's any data type, and we began to discuss relational operators, so let's continue. http://pbdj.sys-con.com/read/106435.htmhttp://pbdj.sys-con.com/read/106435.htm Fri, 01 Jan 1999 00:00:00 GMT With the industry buzzwords being Java, Java, and more Java, I wrote this article to provide insight into how you can leverage your knowledge of PowerScript and PowerBuilder to quickly learn and build Java programs. I'm going to assume that you're familiar with PowerBuilder and the OOP religion. To exploit all of Java's features, you must design and build applications in accordance with OOP techniques. Where appropriate, this article presents a syntactical comparison of the Java language and PowerScript.