JBuilder Data Express controls enable JBuilder developers to use prebuilt
objects to provide the user with an interface in which to view and manipulate
data. For the most part, the use of Data Express components simplifies our
task of programming data access functionality into our applets/applications.
One drawback of using these components is that you're restricted to using
only functions and changing properties that are supported by that specific
control. In other words, although JBuilder simplifies your task, you can use
only prewritten functionality.
What if you wanted total control over your data? What if you wanted to
control every aspect of how your data is formatted, displayed, edited, and
up- dated? The answer to this is knowing how to use the native Java JTable... (more)
I've been in the XML world for about two years now - a dinosaur at today's
rate. Still, I have problems with understanding conceptual and syntax issues
of WSDL and XML Schema - especially the latter. In addition to being complex,
XML Schema and WSDL are relatively new (or soon to be new) WC3
recommendations. So now I have two WC3 recommendations that are intimidating
and complex in natur... (more)
From the beginning, the DataWindow has been a powerful client/server control.
What has set it apart from competing products is its ability to create SQL.
In reality, the DataWindow is a SQL-generating machine. By keeping track of
row and column statuses, the DataWindow is able to generate the correct SQL
statement to UPDATE, DELETE, or INSERT rows into a database. In most
instances, the ... (more)
In this month's column I'll show you how to use the PFC multitable update
service. This service, as you might expect, allows the DataWindow to update
more than one table. Multitable update, one of the least used PFC services,
has been around since version 5.0. I'll demonstrate how you can use it, how
it works and pitfalls you may find along the way.
How the DataWindow Updates
Before I int... (more)
Development of enterprise applications using Java technologies is not for the
faint-hearted. Writing to the J2EE specs is proving to be complex, difficult,
and tedious - slowing down advanced Java developers and creating a barrier to
entry for many mainstream developers.
With advanced Java developers in short supply and even among them, experience
with EJB development is rare, thus slowin... (more)
Bob Hendry is a PowerBuilder instructor for Envision Software Systems and a frequent speaker at national and international PowerBuilder conferences. He specializes in PFC development and has written two books on the subject, including Programming with the PFC 6.0.
Keith Bergelt
Gaurav Mantri
Aditya Banerjee
John Karamitsos
Kaj van de Loo
Bob Little
Alois Reitbauer
Chris Schin
Richard Gordon
Anil Parambath
