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[QVTO] Accessing a EFeatureMapEntry [message #546835]

Wed, 14 July 2010 12:03

Christophe Bouhier

Messages: 937
Registered: July 2009

Senior Member

Hi,

I am try to read the value of an EFeatureMapEntry.

In the query below, I first query the type 'DataType1' which has a
EFeatureMap and I request the first entry (using ->at(1)).

query XLS::DataType1::toData() : ECORE::EFeatureMapEntry {
log("QUERY: Data", self.mixed->at(1));
return self.mixed->at(1);
}

The log on this reports the following type: data:ecore.xml.type:text

then, I use the result to get the value as a String.
I try to convert to a Sequence and get the second index which is
supposed to be the value in the EFeatureMapEntry but this doesn't work.
It seems overcomplicated anyway.

query XLS::CellType::toCell() : String {
log("QUERY: Cell", self);
return self.data->toData()->asSequence()->at(2).oclAsType(String);
}

Any ideas to access the EFeatureMapEntry?

thanks, Christophe

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Re: [QVTO] Accessing a EFeatureMapEntry [message #546973 is a reply to message #546835]

Wed, 14 July 2010 19:15

Alex Mising name

Messages: 51
Registered: August 2009

Member

This has been brought up before [1]. For now it looks like the only way is to implement your own QVTO black box function, something like:

@Operation(contextual = true)
public static Object getValue(FeatureMap.Entry self)
{
  return self.getValue();
}

[1] http://www.eclipse.org/forums/index.php?t=msg&goto=48620 8&#msg_486208

Alex

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Re: [QVTO] Accessing a EFeatureMapEntry [message #547623 is a reply to message #546973]

Mon, 19 July 2010 07:56

Christophe Bouhier

Messages: 937
Registered: July 2009

Senior Member

Thanks Alex, I managed to solve this with a blackbox.
Cheers Christophe

Alex wrote:
> This has been brought up before [1]. For now it looks like the only way
> is to implement your own QVTO black box function, something like:
>
> @Operation(contextual = true)
> public static Object getValue(FeatureMap.Entry self)
> {
> return self.getValue();
> }
>
> [1] http://www.eclipse.org/forums/index.php?t=msg&goto=48620 8&#msg_486208
>
> Alex

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