@Override public Displayer lookupDisplayer(DisplayerSettings displayerSettings) { DisplayerType type = displayerSettings.getType(); if (BARCHART.equals(type)) return new LienzoBarChartDisplayer(); if (PIECHART.equals(type)) return new LienzoPieChartDisplayer(); if (LINECHART.equals(type)) return new LienzoLineChartDisplayer(); return null; }