/**
* Do a smart update, i.e: Check out httprequest, and overwrite any of the back/next/cancel/finish
* values with a corresponding http request parameter, *provided* the request parameter is !=null.
*/
public void smartUpdate() {
HTTPUtil hru = new HTTPUtil();
String vBack = hru.getParameterSingleValue(getParamBack());
if (vBack != null) {
this.back = vBack;
}
String vNext = hru.getParameterSingleValue(getParamNext());
if (vNext != null) {
this.next = vNext;
}
String vCancel = hru.getParameterSingleValue(getParamCancel());
if (vCancel != null) {
this.cancel = vCancel;
}
String vFinish = hru.getParameterSingleValue(getParamFinish());
if (vFinish != null) {
this.finish = vFinish;
}
} // smartUpdate
