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Binding: EMFProperties.list() with FeaturePath - Bug ? [message #798111]

Tue, 14 February 2012 09:11

Markus Jo

Messages: 83
Registered: January 2012

Member

Hi,
I have the following Problem:

This version works:

IEMFListProperty lProp = EMFProperties.list(CoachgroupPackage.Literals.DISPOSITION_SEGMENTS__DISPOSITION_SEGMENT);
IEMFValueProperty vProp = lProp.value(new ListElementAccess<Object>()				{

            public int getReadValueIndex(List<Object> list)
            {
                return 0;
            }

            @Override
            public int getWriteValueIndex(List<Object> list)
            {
                return WriteData.NO_INDEX;
            }
        });

IEMFValueProperty detailValue = vProp.value(CoachgroupPackage.Literals.DISPOSITION_SEGMENT__FROM_STATION);
IObservableValue modelObsevable = detailValue.observe(((CoachGroup)getCurrentSelection()).getDispositionSegments());

But when I use an FeaturePath in the lProp and the observeDetail()-Call for the modelObservable instead....it does not work.

FeaturePath featurePath = FeaturePath.fromList(
				CoachgroupPackage.Literals.COACH_GROUP__DISPOSITION_SEGMENTS,
				CoachgroupPackage.Literals.DISPOSITION_SEGMENTS__DISPOSITION_SEGMENT);


IEMFListProperty lProp = EMFProperties.list(featurePath);
IEMFValueProperty vProp = lProp.value(new ListElementAccess<Object>()				{

            public int getReadValueIndex(List<Object> list)
            {
                return 0;
            }

            @Override
            public int getWriteValueIndex(List<Object> list)
            {
                return WriteData.NO_INDEX;
            }
        });

IEMFValueProperty detailValue = vProp.value(CoachgroupPackage.Literals.DISPOSITION_SEGMENT__FROM_STATION);
IObservableValue nightRoute1StartStationNumberModelObsevable = detailValue.observeDetail(masterTreeViewerObservable);

I get a "Cannot Cast Integer to List" because he does not parse the path....he always takes the root object delivered by the masterDetailObservalbe and not the elements down the path.

Does FeaturePath not work with EMFProperties.list() ??

Greetings

[Updated on: Tue, 14 February 2012 09:13]

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Re: Binding: EMFProperties.list() with FeaturePath - Bug ? [message #798124 is a reply to message #798111]

Tue, 14 February 2012 09:26

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

You can NOT multi-value-feature in a FeaturePath beside the very last
segment.

I even thought we modified FeaturePath to throw an
IllegalArgumentException in this case.

Tom

Am 14.02.12 10:11, schrieb Markus Jo:
>
>
> This works:
>
> IEMFListProperty lProp =
> EMFProperties.list(CoachgroupPackage.Literals.DISPOSITION_SEGMENTS__DISPOSITION_SEGMENT);
>
> IEMFValueProperty vProp = lProp.value(new
> ListElementAccess<Object>() {
>
> public int getReadValueIndex(List<Object> list)
> {
> return 0;
> }
>
> @Override
> public int getWriteValueIndex(List<Object> list)
> {
> return WriteData.NO_INDEX;
> }
> });
>
> IEMFValueProperty detailValue =
> vProp.value(CoachgroupPackage.Literals.DISPOSITION_SEGMENT__FROM_STATION);
> IObservableValue modelObsevable =
> detailValue.observe(((CoachGroup)getCurrentSelection()).getDispositionSegments());
>
>
>
>
> But when I use an FeaturePath in the lProp and the observeDetail()-Call
> for the modelObservable instead....it does not work.
> FeaturePath featurePath = FeaturePath.fromList(
>
> CoachgroupPackage.Literals.COACH_GROUP__DISPOSITION_SEGMENTS,
>
> CoachgroupPackage.Literals.DISPOSITION_SEGMENTS__DISPOSITION_SEGMENT);
>
>
> IEMFListProperty lProp = EMFProperties.list(featurePath);
> IEMFValueProperty vProp = lProp.value(new
> ListElementAccess<Object>() {
>
> public int getReadValueIndex(List<Object> list)
> {
> return 0;
> }
>
> @Override
> public int getWriteValueIndex(List<Object> list)
> {
> return WriteData.NO_INDEX;
> }
> });
>
> IEMFValueProperty detailValue =
> vProp.value(CoachgroupPackage.Literals.DISPOSITION_SEGMENT__FROM_STATION);
> IObservableValue nightRoute1StartStationNumberModelObsevable =
> detailValue.observeDetail(masterTreeViewerObservable);
>
>
>
>
>
>
>
> I get a "Cannot Cast Integer to List" because he does not parse the
> path....he always takes the root object delivered by the
> masterDetailObservalbe and not the elements down the path.
> Does FeaturePath not work with EMFProperties.list() ??

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Re: Binding: EMFProperties.list() with FeaturePath - Bug ? [message #798129 is a reply to message #798124]

Tue, 14 February 2012 09:30

Markus Jo

Messages: 83
Registered: January 2012

Member

Ok, the name is bad.....

CoachgroupPackage.Literals.COACH_GROUP__DISPOSITION_SEGMENTS is NO multi-value.

I used the "s" in the names end because its a wrapper object for the list of segments and then it looks better in the edit-view. That might by why there is no IllegalArgument thrown.

The MulitValue is CoachgroupPackage.Literals.DISPOSITION_SEGMENTS__DISPOSITION_SEGMENT (without s at the end, confusing, i know, sorry)

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