public QMExtension() {
FacesContext facesContext = FacesContext.getCurrentInstance();
if (facesContext != null) {
Application application = facesContext.getApplication();
WorkflowBean bean = ((WorkflowBean) application.createValueBinding("#{workflow}").getValue(facesContext));
Map<String, String> geoParam = bean.getGeoguiParam();
QMExtension extension = new QMExtension();
QMExtInput input = new QMExtInput();
input.setEast(Integer.parseInt(geoParam.get("eastbc")));
input.setNorth(Integer.parseInt(geoParam.get("eastbc")));
input.setWest(Integer.parseInt(geoParam.get("eastbc")));