Millard F. Brown

Exception Handling Using PowerBuilder, EAServer, and JavaServer Pages Basic Techniques and Pitfalls PowerBuilder's Try-Catch-Finally exception handling mechanism brings a great deal of power and versatility to application and component development. It's important to be able to manage and handle exceptions thrown by service components, particularly when you are deploying to a Web environment. When you develop with PowerBuilder 9's JSP targets, you need to know how to throw exceptions from PowerBuilder components and how to catch and handle the exceptions within your JSP target. This article examines the techniques you can use and the challenges you will face in adding robust exception handling to your JSP Web application. Try-Catch-Finally in PowerBuilder WHY WE USE TRY-CATCH-FINALLY The Try-Catch-Finally method of exception handling was introduced in PowerBuilder 8. ... (more)

ODBC

Those who use PowerBuilder appreciate its productivity, its rich user interface, and its capable implementation of object orientation. But database connectivity is the cornerstone of PowerBuilder's power. PowerBuilder incorporates native drivers for several popular DBMSs, including Informix, Sybase Adaptive Server Enterprise, and Oracle. If the only things that were delivered with PowerBuilder were these native interfaces, PowerBuilder's ability to connect to many useful and popular databases would be somewhat limited. Fortunately, in addition to the native drivers, PowerBuilder ... (more)

Have a Good "4"

Have a good one." We hear this expression often these days. I find myself wondering what exactly it means. Have a good...what? But think about it. What it really means is that the speaker is unwilling to make a commitment. Someone might be offended or annoyed if you said something that actually contained any meaning. Remember "Have a nice day"? That expression actually carries some small amount of content. But pretty soon anyone using it was ridiculed and berated for being trivial. Commitment, even on a modest level, can sometimes be dangerous. Commitment takes courage. With EAS... (more)

PowerBuilder Foundation Classes

PowerBuilder includes a powerful set of foundation classes to speed development. These classes are collectively known as the PowerBuilder Foundation Classes, or PFC. Part 1 of this article provides an introduction to PFC and shows how to use it. For the experienced PFC developer, I'll outline the more recent changes and additions to PFC in Part 2. This article is not intended as a complete professional reference for PFC - that could be (and is) the subject of an entire book on its own. Nor is it intended as a tutorial, although there are code samples to show you how to use some ... (more)

Exception Handling Using PowerBuilder, EAServer, and JavaServer Pages

Exception Handling Using PowerBuilder, EAServer, and JavaServer Pages Basic Techniques and Pitfalls PowerBuilder's Try-Catch-Finally exception handling mechanism brings a great deal of power and versatility to application and component development. It's important to be able to manage and handle exceptions thrown by service components, particularly when you are deploying to a Web environment. When you develop with PowerBuilder 9's JSP targets, you need to know how to throw exceptions from PowerBuilder components and how to catch and handle the exceptions within your JSP target. Th... (more)