On 2/20/06, Frank W. Zammetti <[EMAIL PROTECTED]> wrote:
> I mean, we look up chains in a catalog, not
> commands, right? (except technically you *are* looking up a command, I
> think conceptually for Struts developers that isn't an accurate
> description though).
In our C# implementation, we give Commands (and therefore Chains) a
name, so we can lookup the Command (or Chain) by name. In this way,
the caller doesn't need to know anything about the implementation.
So, to fire a Command from an ASPX codebehind, we do something like
IViewHelper helper = GetHelperFor(App.MEETING_LIST); // string constant
helper.Execute();
if (helper.IsNominal) { ... }
Where the helper encapsulates the Context and Command, along with
error handling and such.
In my own work, I've found the ability to interchange Commands with
Chains to be invaluable. I couldn't imagine living without the
subsituation principle now.
-Ted.
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