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ConnectionDecorator is updated only once [message #1770727]

Wed, 16 August 2017 14:27

Alex Kravets

Messages: 561
Registered: November 2009

Senior Member

I have UpdateFeature that update ConnectionDecorator when value in Properties View is changed. Update works only when I type first character in property field, all following characters do not trigger update() method in the feature. During debugging I saw that in GFWorkspaceCommandStackImpl.execute() method is being called with null options, so ExecutionInfo is never set and thus never put on the Stack. Any ideas why Update method is not being executed correctly?

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Re: ConnectionDecorator is updated only once [message #1770819 is a reply to message #1770727]

Thu, 17 August 2017 11:19

Michael Wenz

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

Senior Member

Alex,

do you have a stacktrace of the failing call?

Michael

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Re: ConnectionDecorator is updated only once [message #1770929 is a reply to message #1770819]

Fri, 18 August 2017 21:06

Alex Kravets

Messages: 561
Registered: November 2009

Senior Member

No, no stack trace.

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Re: ConnectionDecorator is updated only once [message #1771032 is a reply to message #1770929]

Mon, 21 August 2017 11:33

Michael Wenz

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

Senior Member

Hm, that would then rather be guessing. I think you need to investigate where the GFWorkspaceCommandStackImpl.execute() call without option comes from.

Michael

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Re: ConnectionDecorator is updated only once [message #1771092 is a reply to message #1771032]

Mon, 21 August 2017 20:44

Alex Kravets

Messages: 561
Registered: November 2009

Senior Member

Another thing I noticed, which I am not sure why I didn't before is that with presence of update feature that is suppose to update ConnectionDecorator when a Connection label property is changed in Properties View, the connection between two object is painted as red dashed line. I forgot what that means, but if I recall it has something to do with update going wrong, yes?

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Re: ConnectionDecorator is updated only once [message #1771143 is a reply to message #1771092]

Tue, 22 August 2017 12:58

Michael Wenz

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

Senior Member

That basically means that there was an update (most probably triggered from another EMF EditingDomain) to that object and the update is not triggered automatically. Usually that happens when a domain object is changed but the graphical representation is not adapted, e.g. on editor startup. The update feature noticed that there is something to update, but only marks the object because the update strategy is set for no automatic update. See http://help.eclipse.org/kepler/index.jsp?topic=%2Forg.eclipse.graphiti.doc%2Fresources%2Fdocu%2Fgfw%2Fupdate-feature.htm&cp=27_1_3_2 in the docu.

Michael

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Re: ConnectionDecorator is updated only once [message #1771165 is a reply to message #1771143]

Tue, 22 August 2017 15:21

Alex Kravets

Messages: 561
Registered: November 2009

Senior Member

I think see what's going on. Since ConnectionDecorator is not linked to any object in a model it's doesn't get updated when a needed model object changes.

[Updated on: Tue, 22 August 2017 18:24]

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