Sidnei da Silva wrote at 2005-9-2 17:06 -0300: > ... >| >So: >| > >| > event(IBeforeSubsystem, SubSystem) >| > execute SubSystem >| > event(IAfterSubsystem, Subsystem) >| > >| >Back to my example, 'B' would subscribe to 'event(IAfterSubsystem, >| >A)', and 'AB' could subscribe to 'event(IBeforeSubsystem, B)'. >| >| You mean the integrator would subscribe "B" to "event(after, A)" >| and "AB" to "event(before, B)"? >| >| That is near what I am looking for (the individual systems do not >| know about each other -- only the integrator does). > >Yes. > >| However, I find it more natural to use numbers on a global >| scale to coordinate the subsystems than explicit tighing systems >| on one another. > >Can you give a simple example?
In your example, the integrator would assign (e.g.) "0" to "A", "10" to "B" and "5" to "AB". Any other numbers "n_a", "n_ab" and "n_b" with "n_a < n_ab < nb" would do as well. -- Dieter _______________________________________________ For more information about ZODB, see the ZODB Wiki: http://www.zope.org/Wikis/ZODB/ ZODB-Dev mailing list - ZODB-Dev@zope.org http://mail.zope.org/mailman/listinfo/zodb-dev
