Bug 257855 [CommonNavigator] Supporting Custom Transfertypes in Common Navigator Framework
bundles/org.eclipse.ui.navigator/src/org/eclipse/ui/navigator/CommonViewer.java
childElements));
		pipeDream.interceptAdd(modification);
		Object parent = (parentElement == getInput()) ? getInput()
				: modification.getParent();
		super.add(parent, modification.getChildren().toArray());
	}
	/**
	 * <p>
	 * Removals are handled by refreshing the parents of each of the given
	 * elements. The parents are determined via calls ot the contentProvider.
	 * </p>
	 * 
	 * @see org.eclipse.jface.viewers.AbstractTreeViewer#remove(java.lang.Object[])
	 */
	public void remove(Object[] elements) {
		
		NavigatorPipelineService pipeDream = (NavigatorPipelineService) contentService
				.getPipelineService();
		PipelinedShapeModification modification = new PipelinedShapeModification(
				null, new ContributorTrackingSet(contentService, elements));
		pipeDream.interceptRemove(modification);
		super.remove(modification.getChildren().toArray());
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.StructuredViewer#refresh(java.lang.Object,
	 *      boolean)
	 */
	public void refresh(Object element, boolean updateLabels) {