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(); }