final Part part = getPart(parent.doc, false, 0);
final Part part = getPart(parent.getDocument(), false, 0);
	public NodeSet hasChildrenInSet(NodeProxy parent, int mode,									boolean rememberContext) {		final Part part = getPart(parent.doc, false, 0);		if (part == null)			return new ArraySet(1);		return part.getChildrenInSet(parent, mode, rememberContext);	}