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question on IScope API(getSingleElement)--my mistake [message #843683]

Fri, 13 April 2012 09:14

Kevin Sun

Messages: 32
Registered: August 2010
Location: China

Member

But I have not found the way to delete this topic. I am sorry

[Updated on: Fri, 13 April 2012 10:20]

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Re: question on IScope API(getSingleElement) [message #844056 is a reply to message #843683]

Fri, 13 April 2012 16:30

Sebastian Zarnekow

Messages: 3118
Registered: July 2009

Senior Member

Hi Kevin,

this may be due to inconsistent scope implementations. How does you
scope structure look like (e.g. SimpleScope -> MapBasedScope ->
MultimapScope ... )

Regards,
Sebastian
--
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Am 13.04.12 11:14, schrieb Kevin Sun:
> I used the methods in IScope as following:
>
> Iterable<IEObjectDescription> resultsTable =
> scope.getElements(qualifiedLinkName);
> IEObjectDescription tmDescription =
> scope.getSingleElement(qualifiedLinkName);
>
> But I got different results.
> -the "resultsTable" is empty. (result.iterator().hasNext() is false)
> -the tmDescription is not "null".
>
> I found that there is ImportScope in the nested scope.
>
> Who can help me to give the reason of this problem.
> The version of Xtext I used is 2.0.0.v201106070531.
>
> Thanks!

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