[news.eclipse.tools.emf] Re: Hide elements in [List]Viewer

[Waldi Waldemar <waldi1985@xxxxxx>]

I mean a thing like this (if you had another way, i can use it):
Taken from the TeamAdmin example.

public class ViewFilterImpl extends ViewerFilter {
		@Override
		public boolean select(Viewer viewer, Object parentElement, Object 
element)
		{
			if (element != null && element instanceof Person)
			{
				if(element is in the other ListViewer){
					return false;
				}
			}
			return true;
		}
		}


Explanation to your secound statement:
In the Database is save a association between the Leiter and the person. 
I will delete the Leiter without the person. How can I do this better 
than below.

Tom Schindl schrieb:
> Waldi Waldemar schrieb:
> > Hi,
> >
> > My model:
> > Gruppe - Leiter - Person
> >    1   - N    1 - 1
> >
> > I have two ListViewers. There are view things from different resources.
> > On the left there is a complete list of Persons and on the right one is
> > the detail from a masterDetail scenario.
> >
> > Now when I load the application new, all persons are viewed on the left
> > one. When I add a person to the detail view, the Person is removed from
> > the left viewer and added to the right. Thats all fine, but i would when
> > I start the application in the left one all persons are viewed in the
> > left one without there in the right on.
> >
> > In my meaning i should implement a Filter, but i have problems with it,
> > can you help me there?
> >
> > This are my inputs:
> > For my Detail ListViewer:
> > leiterAuswahl.setInput(EMFEditObservables.observeDetailList(Realm
> >                             .getDefault(), p.getEditingDomain(),
> > viewerSelection,
> >                             ZlvpPackage.Literals.GRUPPEN__LEITER));
>
> ViewerFilter?
>
> > For my all Persons Viewer:
> > getPersons is a IObservableList.
> > leiter.setInput(p.getPersons());
> >
> > it should be p.getPersons()-ZlvpPackage.Literals.GRUPPEN__LEITER) ;-)
> >
> > Annother realy easy an short question:
> > I do this:
> > Command cmdRemove = RemoveCommand.create(p.getEditingDomain(), gruppe,
> > ZlvpPackage.Literals.GRUPPEN__LEITER, leiter);
> >
> >         if (cmdRemove.canExecute()) {
> >             p.getEditingDomain().getCommandStack().execute(cmdRemove);
> >             p.getResourcePerson().getContents().add(leiter.getPerson());
> >         }else{
> >             System.out.println("Hat ned geklappt");
> >         }
> >
> > It works fine but ithink it dirty. Is there another way to delete only a
> > reference? Only this: Command cmdRemove =
> > RemoveCommand.create(p.getEditingDomain(), gruppe,
> > ZlvpPackage.Literals.GRUPPEN__LEITER, leiter);
>
> I'm not sure I understand what you are asking.
>
> Tom