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John Olson

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Top Stories by John Olson

Live Editing is a feature specific to Jaguar components. When enabled, it causes a component to be deployed automatically to Jaguar whenever that object is saved in the User Object Painter. When it's not enabled, the developer must manually deploy the object to the Jaguar server by executing a Jaguar Component Generator Project. Live Editing automates the step that deploys the updated component version to the Jaguar server when the component is changed in PowerBuilder. While this feature can relieve developers of the extra step of component deployment each time a change is made, it can also cause some headaches. Jaguar components are simply nonvisual objects (custom classes) that are deployed to a Jaguar server. When created in the User Object painter or via the Jaguar Component Wizard, there are two events and one property that distinguish these nvos from nonvisua... (more)

PowerDesigner: Neck and Neck with the Competition,

Though PowerDesigner 7 was released a few months ago, not many people are aware that it's much more feature-rich than past versions. Sybase has been pushing hard to get the word out that PD7 is a great product, but it's getting only mediocre media coverage. We haven't even mentioned it yet in this magazine, so I'm going to focus on it now. First, a little history... Back in 1994, Powersoft was looking to broaden its toolset by adding relational design capabilities, a database and various other components needed for full-cycle development. Rather than taking years to build them f... (more)

Two Heads Are Better Than One

After careful consideration I've come to the conclusion that having two heads is better than having just one. While it may sound like I'm simply stating the obvious, in fact, most people have only one head.1 However, those who are blessed with two heads enjoy a measurable advantage over their single-headed rivals. This conclusion was affirmed in a headline-grabbing paper by two Princeton economists for the National Bureau of Economic Research entitled "Are Two Heads Better Than One?"2 Having multiple heads is most beneficial when performing work that requires multitasking, such ... (more)

Pocket PowerBuilder

My addiction began on Christmas 1997 when I received a PalmPilot as a gift. At first I fought it and continued to keep information in my head and even write some of it down in an ancient book called a "datymr," a rough translation being "keeper of important stuff." Those books have since become obsolete, replaced by electronic organizers that allow storage of thousands of pages of information, quick searches, and can be easily backed up in minutes. The one time I lost my Day-Timer, I promised I would never again become so dependent on something so easily misplaced. But as with mo... (more)

PowerDesigner: Neck and Neck with the Competition

Though PowerDesigner 7 was released a few months ago, not many people are aware that it's much more feature-rich than past versions. Sybase has been pushing hard to get the word out that PD7 is a great product, but it's getting only mediocre media coverage. We haven't even mentioned it yet in this magazine, so I'm going to focus on it now. First, a little history... Back in 1994, Powersoft was looking to broaden its toolset by adding relational design capabilities, a database and various other components needed for full-cycle development. Rather than taking years to build them f... (more)