Documentation:OCLOperators RootObject: Difference between revisions

OCLOperators RootObject

Revision as of 12:23, 7 December 2022

selfVM.RootObject gives access to the object rooting a viewmodel instance. This is readonly and you can use it like this:

selfVM.RootObject->safeCast(Thing).SomeString:='a new value'

? Why is the selfVM.RootObject not typed and require a cast to be used with the real root? Because OCL is a statically typed language and selfVM is context sensitive in the meaning it is available in all viewmodels - and there is no 1 answer to what type the RootObject should have. If you are in the context of a viewmodel you will however know what type it has and can safely cast.

This page was edited 78 days ago on 02/10/2024. What links here

Revision as of 10:58, 29 May 2019 (view source) Hans Karlsen (talk \| contribs) No edit summary Tag: Visual edit ← Older edit		Revision as of 12:23, 7 December 2022 (view source) Stephanie Namugambe (talk \| contribs) No edit summary Tag: Visual edit Newer edit →
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	? Why is the selfVM.RootObject not typed and require a cast to be used with the real root? Because OCL is a statically typed language and selfVM is context sensitive in the meaning it is available in all viewmodels - and there is no 1 answer to what type the RootObject should have. If you are in the context of a viewmodel you will however know what type it has and can safely cast.		? Why is the selfVM.RootObject not typed and require a cast to be used with the real root? Because OCL is a statically typed language and selfVM is context sensitive in the meaning it is available in all viewmodels - and there is no 1 answer to what type the RootObject should have. If you are in the context of a viewmodel you will however know what type it has and can safely cast.
			[[Category:OCLOperators]]