private AggregationForgeFactoryAccessSorted HandleIntoTable(ExprValidationContext validationContext) { int streamNum; if (positionalParams.Length == 0 || positionalParams.Length == 1 && positionalParams[0] is ExprWildcard) { ExprAggMultiFunctionUtil.ValidateWildcardStreamNumbers( validationContext.StreamTypeService, AggregationFunctionName); streamNum = 0; } else if (positionalParams.Length == 1 && positionalParams[0] is ExprStreamUnderlyingNode) { streamNum = ExprAggMultiFunctionUtil.ValidateStreamWildcardGetStreamNum(positionalParams[0]); } else if (positionalParams.Length > 0) { throw new ExprValidationException("When specifying into-table a sort expression cannot be provided"); } else { streamNum = 0; } var containedType = validationContext.StreamTypeService.EventTypes[streamNum]; var componentType = containedType.UnderlyingType; var accessorResultType = componentType; AggregationAccessorForge accessor; if (!sortedwin) { accessor = new AggregationAccessorMinMaxByNonTable(IsMax); } else { accessor = new AggregationAccessorSortedNonTable(IsMax, componentType); accessorResultType = TypeHelper.GetArrayType(accessorResultType); } AggregationAgentForge agent = AggregationAgentForgeFactory.Make( streamNum, optionalFilter, validationContext.ImportService, validationContext.StreamTypeService.IsOnDemandStreams, validationContext.StatementName); return new AggregationForgeFactoryAccessSorted( this, accessor, accessorResultType, containedType, null, null, agent); }
private AggregationLinearFactoryDesc HandleNonIntoTable( ExprNode[] childNodes, AggregationAccessorLinearType?stateType, ExprValidationContext validationContext) { var streamTypeService = validationContext.StreamTypeService; int streamNum; Type resultType; ExprForge forge; ExprNode evaluatorIndex = null; bool istreamOnly; EventType containedType; Type scalarCollectionComponentType = null; // validate wildcard use var isWildcard = childNodes.Length == 0 || childNodes.Length > 0 && childNodes[0] is ExprWildcard; if (isWildcard) { ExprAggMultiFunctionUtil.ValidateWildcardStreamNumbers(validationContext.StreamTypeService, stateType?.GetNameInvariant()); streamNum = 0; containedType = streamTypeService.EventTypes[0]; resultType = containedType.UnderlyingType; var tableMetadataX = validationContext.TableCompileTimeResolver.ResolveTableFromEventType(containedType); forge = ExprNodeUtilityMake.MakeUnderlyingForge(0, resultType, tableMetadataX); istreamOnly = GetIstreamOnly(streamTypeService, 0); if ((stateType == AggregationAccessorLinearType.WINDOW) && istreamOnly && !streamTypeService.IsOnDemandStreams) { throw MakeUnboundValidationEx(stateType); } } else if (childNodes.Length > 0 && childNodes[0] is ExprStreamUnderlyingNode) { // validate "stream.*" streamNum = ExprAggMultiFunctionUtil.ValidateStreamWildcardGetStreamNum(childNodes[0]); istreamOnly = GetIstreamOnly(streamTypeService, streamNum); if ((stateType == AggregationAccessorLinearType.WINDOW) && istreamOnly && !streamTypeService.IsOnDemandStreams) { throw MakeUnboundValidationEx(stateType); } var type = streamTypeService.EventTypes[streamNum]; containedType = type; resultType = type.UnderlyingType; var tableMetadataX = validationContext.TableCompileTimeResolver.ResolveTableFromEventType(type); forge = ExprNodeUtilityMake.MakeUnderlyingForge(streamNum, resultType, tableMetadataX); } else { // validate when neither wildcard nor "stream.*" var child = childNodes[0]; var streams = ExprNodeUtilityQuery.GetIdentStreamNumbers(child); if (streams.IsEmpty() || (streams.Count > 1)) { throw new ExprValidationException( GetErrorPrefix(stateType) + " requires that any child expressions evaluate properties of the same stream; Use 'firstever' or 'lastever' or 'nth' instead"); } streamNum = streams.First(); istreamOnly = GetIstreamOnly(streamTypeService, streamNum); if ((stateType == AggregationAccessorLinearType.WINDOW) && istreamOnly && !streamTypeService.IsOnDemandStreams) { throw MakeUnboundValidationEx(stateType); } resultType = childNodes[0].Forge.EvaluationType; forge = childNodes[0].Forge; if (streamNum >= streamTypeService.EventTypes.Length) { containedType = streamTypeService.EventTypes[0]; } else { containedType = streamTypeService.EventTypes[streamNum]; } scalarCollectionComponentType = resultType; } if (childNodes.Length > 1) { if (stateType == AggregationAccessorLinearType.WINDOW) { throw new ExprValidationException(GetErrorPrefix(stateType) + " does not accept an index expression; Use 'first' or 'last' instead"); } evaluatorIndex = childNodes[1]; var indexResultType = evaluatorIndex.Forge.EvaluationType; if (indexResultType != typeof(int?) && indexResultType != typeof(int)) { throw new ExprValidationException(GetErrorPrefix(stateType) + " requires an index expression that returns an integer value"); } } // determine accessor AggregationAccessorForge accessor; if (evaluatorIndex != null) { var isFirst = stateType == AggregationAccessorLinearType.FIRST; var constant = -1; ExprForge forgeIndex; if (evaluatorIndex.Forge.ForgeConstantType.IsCompileTimeConstant) { constant = evaluatorIndex.Forge.ExprEvaluator.Evaluate(null, true, null).AsInt32(); forgeIndex = null; } else { forgeIndex = evaluatorIndex.Forge; } accessor = new AggregationAccessorFirstLastIndexWEvalForge(streamNum, forge, forgeIndex, constant, isFirst); } else { if (stateType == AggregationAccessorLinearType.FIRST) { accessor = new AggregationAccessorFirstWEvalForge(streamNum, forge); } else if (stateType == AggregationAccessorLinearType.LAST) { accessor = new AggregationAccessorLastWEvalForge(streamNum, forge); } else if (stateType == AggregationAccessorLinearType.WINDOW) { accessor = new AggregationAccessorWindowWEvalForge(streamNum, forge, resultType); } else { throw new IllegalStateException("Access type is undefined or not known as code '" + stateType + "'"); } } var accessorResultType = resultType; if (stateType == AggregationAccessorLinearType.WINDOW) { accessorResultType = TypeHelper.GetArrayType(resultType); } var isFafWindow = streamTypeService.IsOnDemandStreams && stateType == AggregationAccessorLinearType.WINDOW; var tableMetadata = validationContext.TableCompileTimeResolver.ResolveTableFromEventType(containedType); if (tableMetadata == null && !isFafWindow && (istreamOnly || streamTypeService.IsOnDemandStreams)) { if (optionalFilter != null) { positionalParams = ExprNodeUtilityMake.AddExpression(positionalParams, optionalFilter); } var serde = validationContext.SerdeResolver.SerdeForAggregation(accessorResultType, validationContext.StatementRawInfo); AggregationForgeFactory factoryX = new AggregationForgeFactoryFirstLastUnbound(this, accessorResultType, optionalFilter != null, serde); return(new AggregationLinearFactoryDesc(factoryX, containedType, scalarCollectionComponentType, streamNum)); } var stateKey = new AggregationStateKeyWStream( streamNum, containedType, AggregationStateTypeWStream.DATAWINDOWACCESS_LINEAR, ExprNodeUtilityQuery.EMPTY_EXPR_ARRAY, optionalFilter); var optionalFilterForge = optionalFilter == null ? null : optionalFilter.Forge; AggregationStateFactoryForge stateFactory = new AggregationStateLinearForge(this, streamNum, optionalFilterForge); var factory = new AggregationForgeFactoryAccessLinear( this, accessor, accessorResultType, stateKey, stateFactory, AggregationAgentDefault.INSTANCE, containedType); var enumerationType = scalarCollectionComponentType == null ? containedType : null; var serdeForgables = SerdeEventTypeUtility.Plan( containedType, validationContext.StatementRawInfo, validationContext.SerdeEventTypeRegistry, validationContext.SerdeResolver); validationContext.AdditionalForgeables.AddAll(serdeForgables); return(new AggregationLinearFactoryDesc(factory, enumerationType, scalarCollectionComponentType, streamNum)); }