private LinearAggregationFactoryDesc HandleCreateTable(
ExprNode[] childNodes,
AggregationStateType stateType,
ExprValidationContext validationContext)
{
var message = "For tables columns, the " + stateType.GetName().ToLowerInvariant() +
" aggregation function requires the 'window(*)' declaration";
if (stateType != AggregationStateType.WINDOW)
{
throw new ExprValidationException(message);
}
if (childNodes.Length == 0 || childNodes.Length > 1 || !(childNodes[0] is ExprWildcard))
{
throw new ExprValidationException(message);
}
if (validationContext.StreamTypeService.StreamNames.Length == 0)
{
throw new ExprValidationException(
GetErrorPrefix(stateType) + " requires that the event type is provided");
}
var containedType = validationContext.StreamTypeService.EventTypes[0];
var componentType = containedType.UnderlyingType;
var accessor = new AggregationAccessorWindowNoEval(componentType);
var stateFactory =
validationContext.EngineImportService.AggregationFactoryFactory.MakeLinear(
validationContext.StatementExtensionSvcContext, this, 0);
var factory = new ExprAggMultiFunctionLinearAccessNodeFactoryAccess(
this, accessor, TypeHelper.GetArrayType(componentType), containedType, null, stateFactory, null);
return(new LinearAggregationFactoryDesc(factory, factory.ContainedEventType, null));
}
private LinearAggregationFactoryDesc HandleCreateTable(ExprNode[] childNodes, AggregationStateType stateType, ExprValidationContext validationContext)
{
var message = "For tables columns, the " + stateType.GetName().ToLower() + " aggregation function requires the 'window(*)' declaration";
if (stateType != AggregationStateType.WINDOW)
{
throw new ExprValidationException(message);
}
if (childNodes.Length == 0 || childNodes.Length > 1 || !(childNodes[0] is ExprWildcard))
{
throw new ExprValidationException(message);
}
if (validationContext.StreamTypeService.StreamNames.Length == 0)
{
throw new ExprValidationException(GetErrorPrefix(stateType) + " requires that the event type is provided");
}
var containedType = validationContext.StreamTypeService.EventTypes[0];
var componentType = containedType.UnderlyingType;
AggregationAccessor accessor = new AggregationAccessorWindowNoEval(componentType);
ExprNode me = this;
AggregationStateFactory stateFactory = new ProxyAggregationStateFactory
{
ProcCreateAccess = (methodResolutionService, agentInstanceId, groupId, aggregationId, join, groupKey, passThru) =>
methodResolutionService.MakeAccessAggLinearNonJoin(agentInstanceId, groupId, aggregationId, 0, passThru),
ProcAggregationExpression = () => me,
};
var factory = new ExprAggMultiFunctionLinearAccessNodeFactoryAccess(this, accessor, TypeHelper.GetArrayType(componentType), containedType, null, stateFactory, null);
return(new LinearAggregationFactoryDesc(factory, factory.ContainedEventType, null));
}
