public EnumEvalBaseScalarIndex(ExprEvaluator innerExpression, int streamNumLambda, MapEventType evalEventType, String evalPropertyName, MapEventType indexEventType, String indexPropertyName) {
this.innerExpression = innerExpression;
this.streamNumLambda = streamNumLambda;
this.evalPropertyName = evalPropertyName;
this.evalEvent = new MapEventBean(new HashMap<String, Object>(), evalEventType);
this.indexPropertyName = indexPropertyName;
this.indexEvent = new MapEventBean(new HashMap<String, Object>(), indexEventType);
this.eventsLambda = new EventBean[streamNumLambda + 2];
}