Пример #1
0
        public AggregationMultiFunctionMethodDesc ValidateAggregationMethod(
            ExprValidationContext validationContext,
            String aggMethodName,
            ExprNode[] @params)
        {
            aggMethodName = aggMethodName.ToLowerInvariant();
            if ((aggMethodName == "countevents") || (aggMethodName == "listreference")) {
                if (@params.Length > 0) {
                    throw new ExprValidationException("Invalid number of parameters");
                }

                var provider = typeof(AggregationMethodLinearCount);
                var result = typeof(int?);
                if (aggMethodName == "listreference") {
                    provider = typeof(AggregationMethodLinearListReference);
                    result = typeof(IList<EventBean>);
                }

                return new AggregationMultiFunctionMethodDesc(new AggregationMethodLinearNoParamForge(provider, result), null, null, null);
            }

            var methodType = AggregationAccessorLinearTypeExtensions.FromString(aggMethodName);
            if (methodType == AggregationAccessorLinearType.FIRST || methodType == AggregationAccessorLinearType.LAST) {
                return HandleMethodFirstLast(@params, methodType.Value, validationContext);
            }
            else {
                return HandleMethodWindow(@params, validationContext);
            }
        }
Пример #2
0
 public bool IsAggregationMethod(
     string name,
     ExprNode[] parameters,
     ExprValidationContext validationContext)
 {
     name = name.ToLowerInvariant();
     return AggregationAccessorLinearTypeExtensions.FromString(name) != null ||
            (name == "countevents") || 
            (name == "listreference");
 }