A Publish/Subscribe Component for 4D – David Adams

August 30th, 2017, 6:00 PM, CDT (UTC−5:00)
116 S. Michigan Ave., Chicago IL 3rd floor
Please RSVP if attending in person

Special Topic:
A Publish/Subscribe Component for 4DDavid Adams
David Adams demonstrates a component, with source, that implements a “publish/subscribe” messaging system on top of CALL FORM and CALL WORKER.  There are a ton of uses for this sort of system, and it is also a very different way of thinking about structuring your code and objects.  With the infrastructure in place, it’s very, very easy to extend and reuse interface elements, even complex ones, without a lot of code or new bugs.  All of this works within one process with one window, one process with multiple windows, or even multiple processes.

Unleash this flexible new interface coding approach in your system with help from 4D coding guru, David Adams.

** Ask questions and post comments before and during the presentation via the dedicated discussion thread on Reddit.  We will monitor the thread during the meeting to include comments in the discussion.

To be able to ask questions directly via video chat in the hangout, connect with this link:
!!! Check back to this page around meeting time for an updated link.

To follow along with the meeting slideshow, access it here when it is available…
Slides for August 30th, 2017 meeting

David Adams slides
Demo, component source

Or stream directly on YouTube:

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1 Response to A Publish/Subscribe Component for 4D – David Adams

  1. Bruno LEGAY says:

    Thanks everybody. Nice presentation David. Interesting concept. We will definitely investigate to see if this pattern can make our coding simpler (more maintainable) and if and how we can apply it to our projects.
    PS : I did not watch the presentation live because it was too late for us in Europe (it is fine). Offline is a great feature.

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