Re: DDS Screens To Java

Swing is the more recent and preferred (I think) graphical interface for
Java.

A thick client is one where the applications reside on the client.
Things like M$ Word might use data on a server but the program is
installed completely on the client and runs there.

A thin client is one where the applications reside elsewhere. Some of
them get downloaded as needed but are never stored on the client.
Portions of applications will also run on the server, rather than the
client.

I think :-)

Dan Bale wrote:
>
> Umm, please explain "Swing interface" and "thick client"  (I know Windoze is
> "thick", as in "thick in the skull", is this the "thick" you're speaking of?
> <g>)
>
> - Dan Bale
>
> -----Original Message-----
> From: midrange-l-admin@midrange.com
> [mailto:midrange-l-admin@midrange.com]On Behalf Of Joe Pluta
> Sent: Friday, February 22, 2002 5:23 PM
> To: midrange-l@midrange.com
> Subject: RE: DDS Screens To Java
>
> > From: Hall, Philip
> >
> > Although this route doesn't create 'Java screens', it generates
> > HTML on the
> > fly and caching seems to be non-existent...
> >
> > BTW: Java screens in my book would be a (JFC)Swing interface.
>
> That's an important point, Phil.  A "Java" screen to my mind is a
> thick-client Swing application running on the PC, as opposed to an HTML
> interface running in a browser.
>
> The other issue is whether you actually convert the RPG programs to Java.
> Currently, all commercial solutions that I am familiar with leave the
> application written in RPG.  They either modify the application to use a
> different interface, or screen scrape the 5250 data stream.  The former
> reduces your interactive requirement, the latter requires no modification to
> the code.
>
> There are several HTML vendors (myself included).  A commercial conversion
> to HTML using one of these tools currently starts at around $20,000,
> depending on the size of the application and the size of the box.  There is
> also a variable amount of consulting required.  The RPG programs stay as RPG
> programs, but the interface is HTML.  Some of these are screen scrape
> solutions, some use program modification.
>
> There are also a couple of thick client vendors.  The last I heard, Jacada
> has both a screen scraper and a program modification interface to thick
> screens.  Linoma Logic (whom I partner with) provides a product/service
> offering designed to help you move your applications to a client/server
> architecture that supports a thick-screen interface.
>
> The other options are to roll your own, using e-RPG (Brad's technique),
> e-deployment (my technique), or Nathan's relational data framework.
> Nathan's is the only one with a license fee, but his is the most complete of
> the three.  Both e-RPG and e-deployment are more of a technology concept
> than a product.
>
> Joe
>
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