SetPath(NodeList _if, Object path, Object value) {
super(_if, path);
this.value = value;
}
void exec0(Context cntx, Element e, String p) throws SysException, CalculateException {
XMLPath pth = new XMLPath(p);
String v = null;
if (value instanceof Prm)
v = ((Prm)value).getString(cntx);
else
v = Strings.getString(value);
pth.setXMLValue(e, v);
}