public override void InlineInitializeOnTriggerBase( CodegenExpressionRef saiff, CodegenMethod method, SAIFFInitializeSymbol symbols, CodegenClassScope classScope) { method.Block .SetProperty(saiff, "Items", OnSplitItemForge.Make(items, method, symbols, classScope)) .SetProperty(saiff, "IsFirst", Constant(first)) .Expression(ExprDotMethodChain(symbols.GetAddInitSvc(method)).Add("AddReadyCallback", saiff)); }
public static OnTriggerPlan HandleSplitStream( string aiFactoryProviderClassName, CodegenNamespaceScope namespaceScope, string classPostfix, OnTriggerSplitStreamDesc desc, StreamSpecCompiled streamSpec, OnTriggerActivatorDesc activatorResult, IDictionary<ExprSubselectNode, SubSelectActivationPlan> subselectActivation, StatementBaseInfo @base, StatementCompileTimeServices services) { var raw = @base.StatementSpec.Raw; if (raw.InsertIntoDesc == null) { throw new ExprValidationException( "Required insert-into clause is not provided, the clause is required for split-stream syntax"); } if (raw.GroupByExpressions != null && raw.GroupByExpressions.Count > 0 || raw.HavingClause != null || raw.OrderByList.Count > 0) { throw new ExprValidationException( "A group-by clause, having-clause or order-by clause is not allowed for the split stream syntax"); } var streamName = streamSpec.OptionalStreamName; if (streamName == null) { streamName = "stream_0"; } StreamTypeService typeServiceTrigger = new StreamTypeServiceImpl( new[] {activatorResult.ActivatorResultEventType}, new[] {streamName}, new[] {true}, false, false); // materialize sub-select views var subselectForges = SubSelectHelperForgePlanner.PlanSubSelect( @base, subselectActivation, new[] {streamSpec.OptionalStreamName}, new[] {activatorResult.ActivatorResultEventType}, new[] {activatorResult.TriggerEventTypeName}, services); // compile top-level split var items = new OnSplitItemForge[desc.SplitStreams.Count + 1]; items[0] = OnSplitValidate( typeServiceTrigger, @base.StatementSpec, @base.ContextPropertyRegistry, null, @base.StatementRawInfo, services); // compile each additional split var index = 1; foreach (var splits in desc.SplitStreams) { var splitSpec = new StatementSpecCompiled(); splitSpec.Raw.InsertIntoDesc = splits.InsertInto; splitSpec.SelectClauseCompiled = CompileSelectAllowSubselect(splits.SelectClause); splitSpec.Raw.WhereClause = splits.WhereClause; PropertyEvaluatorForge optionalPropertyEvaluator = null; StreamTypeService typeServiceProperty; if (splits.FromClause != null) { optionalPropertyEvaluator = PropertyEvaluatorForgeFactory.MakeEvaluator( splits.FromClause.PropertyEvalSpec, activatorResult.ActivatorResultEventType, streamName, @base.StatementRawInfo, services); typeServiceProperty = new StreamTypeServiceImpl( new[] {optionalPropertyEvaluator.FragmentEventType}, new[] {splits.FromClause.OptionalStreamName}, new[] {true}, false, false); } else { typeServiceProperty = typeServiceTrigger; } items[index] = OnSplitValidate( typeServiceProperty, splitSpec, @base.ContextPropertyRegistry, optionalPropertyEvaluator, @base.StatementRawInfo, services); index++; } // handle result set processor classes IList<StmtClassForgable> forgables = new List<StmtClassForgable>(); for (var i = 0; i < items.Length; i++) { var classNameRSP = CodeGenerationIDGenerator.GenerateClassNameSimple( typeof(ResultSetProcessorFactoryProvider), classPostfix + "_" + i); forgables.Add( new StmtClassForgableRSPFactoryProvider( classNameRSP, items[i].ResultSetProcessorDesc, namespaceScope, @base.StatementRawInfo)); items[i].ResultSetProcessorClassName = classNameRSP; } // plan table access var tableAccessForges = ExprTableEvalHelperPlan.PlanTableAccess(@base.StatementSpec.TableAccessNodes); // build forge var splitStreamForge = new StatementAgentInstanceFactoryOnTriggerSplitStreamForge( activatorResult.Activator, activatorResult.ActivatorResultEventType, subselectForges, tableAccessForges, items, desc.IsFirst); var triggerForge = new StmtClassForgableAIFactoryProviderOnTrigger( aiFactoryProviderClassName, namespaceScope, splitStreamForge); return new OnTriggerPlan(triggerForge, forgables, new SelectSubscriberDescriptor()); }