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CommandHandler and HandlerProxy [message #1090474]

Tue, 20 August 2013 07:24

Marc-Florian Wendland

Messages: 81
Registered: January 2013

Member

Hi all,

I migrating our software from Indigo to Kepler and have encountered a
deviating behavior regarding IHandler and HandlerProxy.

In Indigo I could get the IHandler from a Command and resolve the IHandler
to a concrete Handler-Implementation. We used this as a pattern to
parametrize the corresponding Handler instead of the Command directly. This
worked well in Indigo.

Now, giong to Kepler, the IHandler I retrieve from a Command is no longer a
HandlerProxy, thus, I cannot cast it to my IHandler-Implementation. Does
anybody know how to circumvent this? The main idea behind this is to reuse
the very same handler (which in turn configures a complex EMF command) from
all possible situations, but under slightly different circumstances.

Any help would be highly appreciate, because otherwise this would mean for
us to change large parts of a complex and working functionality, which we
would like to avoid, of course.

Marc-Florian

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