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Delete Shapes inside Containershape [message #1786648]

Tue, 08 May 2018 22:05

Markus Gamperle

Messages: 7
Registered: April 2018

Junior Member

Hey Guys,

I want to update the Graphical Representation of my model.

Therefore, i need to delete all contained shapes/texts/polylines.

When i try

public boolean update(IUpdateContext context) {
		PictogramElement pictogramElement = context.getPictogramElement();
        if (pictogramElement instanceof ContainerShape) {

            ContainerShape cs = (ContainerShape) pictogramElement;
            cs.getChildren().clear();

I can't save the diagram any more. So how is it possible to remove shapes without errors?

It throws this exception:
org.eclipse.emf.ecore.resource.Resource$IOWrappedException: The object 'org.eclipse.graphiti.mm.pictograms.impl.PictogramLinkImpl@2bb60439' is not contained in a resource.
at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.endSave(XMLSaveImpl.java:301)

I want to clear the containershape to fill it with new Texts. Is this possible?

Thanks in advance

Markus

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Re: Delete Shapes inside Containershape [message #1786668 is a reply to message #1786648]

Wed, 09 May 2018 07:39

Michael Wenz

Messages: 1931
Registered: July 2009
Location: Walldorf, Germany

Senior Member

Markus,

the call to cs.getChildren().clear() will only remove the children from the aggregation in the container shape, it will actually not delete them. This means that you will end up with dangling objects that do not have a parent and are not associated to any EMF resource (this is what the error message is about). You will need to really delete the children shapes to get rid of this.

Michael

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Re: Delete Shapes inside Containershape [message #1786722 is a reply to message #1786668]

Wed, 09 May 2018 20:21

Markus Gamperle

Messages: 7
Registered: April 2018

Junior Member

Michael,

thank you for the quick answer. But how can i delete the shapes/ the texts inside the shapes?
I tried calling ECoreUtil.deleteFeature() on them, it didn't work.

Markus

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Re: Delete Shapes inside Containershape [message #1786775 is a reply to message #1786722]

Fri, 11 May 2018 07:34

Michael Wenz

Messages: 1931
Registered: July 2009
Location: Walldorf, Germany

Senior Member

ECoreUtil.delete() should be the method to call for this. What was the error you were getting when you tried to call that?

Michael

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Re: Delete Shapes inside Containershape [message #1786803 is a reply to message #1786775]

Sat, 12 May 2018 11:53

Markus Gamperle

Messages: 7
Registered: April 2018

Junior Member

No Message Body

[Updated on: Sat, 12 May 2018 11:55]

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Re: Delete Shapes inside Containershape [message #1786804 is a reply to message #1786775]

Sat, 12 May 2018 11:53

Markus Gamperle

Messages: 7
Registered: April 2018

Junior Member

the same as before,

the Link of the shape with the business-object still existed.

So I had to first delete the link of the shape and then the shape itself.
Now it works fine and i'm able to safe.

Markus

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