PowerBuilder Tips, Tricks, and Techniques

Berndt Hamboeck

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Top Stories by Berndt Hamboeck

An enterprise portal is the converged "hub" of multiple, complementary information management solutions, including document and content management, information search and retrieval, knowledge management, team collaboration, workflow, and business intelligence. In this article, we describe what an enterprise portal is and give you a brief overview of Sybase Enterprise Portal. Then we take a closer look at the portal and go over some of the installation requirements and steps for the Information Edition of the portal. We also delve into how to use a portal and build components (called portlets) for the portal using PowerBuilder. Finally, we include a section on portal security, an extremely important aspect of having a portal. Whether you write your own portal software, are thinking about using portal software, or are already using the Sybase Enterprise Portal, this ... (more)

PowerJ 4.0 - Struts Development

Struts is an open source initiative from the Jakarta Project written in Java. Sponsored by the Apache Software Foundation, the project's goal is to provide an open source framework that's useful for building Web applications with Java servlet and JavaServer Pages (JSP) technology. Struts encourages application architectures based on the Model-View-Controller (MVC) design paradigm. In the MVC design pattern, application flow is mediated by a central controller that delegates requests to an appropriate handler. The handlers are tied to a Model and act as an adapter between the req... (more)

The EAServer Repository

EAServer includes a powerful API called the Interface Repository. In this article I'll create a small service component to clean this repository of unwanted files that might be created when you deploy PowerBuilder components. I'll show how to get all the packages associated with your server and read your component's special properties. With the Interface Repository you can do all the EAServer administration and monitoring tasks, for example: Create and ping connection caches Query for installed packages and components Get information about the server (OS, version) Refresh/restar... (more)

LDAP with EAServer and PB 8.0

In Part 1 (PBDJ, Vol. 9, issue 6) I discussed directory services and how they provide authentication, access control, and finder services for our application. In Part 2, I explain how the JNDI API lets us easily use LDAP. JNDI Overview The Java Naming and Directory Interface (JNDI) is an application programming interface (API) that provides naming and directory functionality to Java applications. It's independent of any specific directory service implementation, thus a variety of directories - new, emerging, and already deployed - can be accessed the same way. JNDI Architecture T... (more)

DDDW Tips and Tricks

The DropDownDataWindow (DDDW) edit style is one of PowerBuilder's outstanding features. Yes, I know there are a lot of new and exciting capabilities in the upcoming release of PowerBuilder, but in this article I'll try to solve some of the current problems with the existing features that are popping up in nearly every project I've seen. Here I'll focus on DropDownDataWindows, including: How to get started with DDDWs Filtering DDDWs without losing the display value in other rows Catching the collapsing of a DDDW Trapping the cursor keys in a DDDW Autocomplete DDDW values Getting S... (more)