Re: 4GL legacy -> GUI C++ or Java ?

On Fri 4 Dec 1998, Candy McCall <candym@olcinc.com> wrote: >I'm aware of the Java client in an upcoming release. >Will it enable you to integrate your own java code or >is it just a "java client" that interprets the TCL/TK >commands? The basic answer is "It is just a Java Client that interprets the Tcl/Tk commands". This is certainly all that is planned for the initial release, due in the first half on 1999. It would be interesting to consider what might be involved in allowing you to add to that interpreter for a later release. It seems to me that Java provides a number of facilities, most notably interfaces which a class can implement, that should make it relatively easy to embed extra code into the basic Java display server. I think the biggest issue is how to notify the Java display server that it needs to make the calls to the extra code; that is, how to register the callbacks. The actual classes that are called would implement a pre-determined interface, of course. There'd also need to be a clear explanation of when the callbacks are made and the facilities that are available to the called functions, but that's "just" documentation. No, this is not a definitive proposal -- it is a suggestion with no commitment from anybody at Informix or 4J's for it ever being implemented in any form. I'm not a Java expert, either, so I could be completely off the wall here. Your thoughts? Yours, Jonathan Leffler (jleffler@informix.com) #include <witticism.h> Guardian of DBD::Informix v0.60 -- http://www.perl.com/CPAN Informix IDN for D4GL & Linux -- http://www.informix.com/idn