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bad experience with data binding for TableViewer. [message #745360]

Sat, 22 October 2011 19:31

a.efremov

Messages: 2
Registered: October 2011

Junior Member

Hello,

Surprisingly, It seems that data binding doesn't work for Viewers if Observable "input" is in different Realm.

That simply means that all that Binding code switching back and forth doesn't make any sense if I can't put model things in different Realm.

Obviously Viewer should live in Display Realm, but model?

-> All processing go in ui.
Then I set input in ui-thread I get following:
assertion failed: Getter called outside realm of observable org.eclipse.core.internal.databinding.beans.BeanObservableListDecorator

at org.eclipse.core.runtime.Assert.isTrue(Assert.java:110)
at org.eclipse.core.databinding.observable.ObservableTracker.getterCalled(ObservableTracker.java:256)
at org.eclipse.core.databinding.observable.DecoratingObservable.getterCalled(DecoratingObservable.java:64)
at org.eclipse.core.databinding.observable.DecoratingObservableCollection.equals(DecoratingObservableCollection.java:121)
at org.eclipse.jface.viewers.StructuredViewer.equals(StructuredViewer.java:727)
at org.eclipse.jface.viewers.AbstractTableViewer.internalRefresh(AbstractTableViewer.java:647)
at org.eclipse.jface.viewers.AbstractTableViewer.internalRefresh(AbstractTableViewer.java:636)
at org.eclipse.jface.viewers.AbstractTableViewer$2.run(AbstractTableViewer.java:592)
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1443)
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1404)
at org.eclipse.jface.viewers.AbstractTableViewer.inputChanged(AbstractTableViewer.java:590)
at org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:280)
at org.eclipse.jface.viewers.StructuredViewer.setInput(StructuredViewer.java:1690)

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Re: bad experience with data binding for TableViewer. [message #745436 is a reply to message #745360]

Sat, 22 October 2011 20:39

a.efremov

Messages: 2
Registered: October 2011

Junior Member

well, ugly but working solution.

buffering,
set WritableList as input and bind it with model Observable.

final TableViewer v = ....
final WritableList xs=new WritableList();
v.setInput(xs);
dbc.bindList(xs,listObservable_In_Model_Realm);

alexander

[Updated on: Sat, 22 October 2011 20:44]

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