public Object evaluate(
EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) {
Object value = reader.getValue();
if (isPrimitive) {
return value;
}
if (value == null) {
return null;
}
EventBean theEvent = (EventBean) value;
if (optSubPropName == null) {
return theEvent.getUnderlying();
}
return eventTypeGetter.get(theEvent);
}
public Object getValue() {
if (reader == null) {
throw new EPException("Variable expression node has not been initialized");
}
return reader.getValue();
}