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Home » Eclipse Projects » Rich Client Platform (RCP) » Empty Selection after opened an editor
Empty Selection after opened an editor [message #1033482] Thu, 04 April 2013 09:19
Tommaso De Sica is currently offline Tommaso De SicaFriend
Messages: 131
Registered: March 2012
Location: Italy
Senior Member

Goodmorning everyone,
I've got a perspective with 2 views and I use SelectionService to get the selected object from one of these (doubleclick event).

If I use this selection to open an editor on selected object I've got this problem: once the editor is open the selection is empty and if I try to double-click on other objects I'll receive NullPointerException.

If I try to debug, selection is never empty and all goes fine (could be a synchronization problem?)

Here are some hot code parts:

	public Object execute(final ExecutionEvent event) throws ExecutionException {
		final E objectToBeEditedEObject = getObjectToBeEdited();
		final IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
		try {
			final IEditorInput editorInput = retrieveEditorInput(page, objectToBeEditedEObject);
			page.openEditor(editorInput, getEditorId());
		} catch (final PartInitException e) {
			throw new RuntimeException(e);
		return null;

    protected MyType getObjectToBeEdited() {
        return (MyType) getCurrentSelection();

   protected Object getCurrentSelection() {
    	final StructuredSelection selection=(StructuredSelection) PlatformUI.getWorkbench().getActiveWorkbenchWindow().getSelectionService().getSelection();
    	Object toReturn = selection.getFirstElement();
        return toReturn;

Thanks for you help.
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