コード例 #1
0
        private static IList<FilterSpecParam> ComputePermutation(
            FilterParamExprMap filterParamExprMap,
            object[] permutation,
            FilterParamExprMap[][] orNodesMaps,
            FilterSpecCompilerArgs args)
        {
            var mapAll = new FilterParamExprMap();
            mapAll.Add(filterParamExprMap);

            // combine
            for (int orNodeNum = 0; orNodeNum < permutation.Length; orNodeNum++)
            {
                var orChildNodeNum = permutation[orNodeNum].AsInt();
                FilterParamExprMap mapOrSub = orNodesMaps[orNodeNum][orChildNodeNum];
                mapAll.Add(mapOrSub);
            }

            // consolidate across
            FilterSpecCompilerConsolidateUtil.Consolidate(mapAll, args.StatementName);

            IList<FilterSpecParam> filterParams = new List<FilterSpecParam>();
            filterParams.AddAll(mapAll.FilterParams);
            int countUnassigned = mapAll.CountUnassignedExpressions();

            if (countUnassigned == 0)
            {
                return filterParams;
            }

            FilterSpecParamExprNode node = MakeRemainingNode(mapAll.UnassignedExpressions, args);
            filterParams.Add(node);
            return filterParams;
        }
コード例 #2
0
        internal static IList<FilterSpecParam>[] PlanFilterParameters(
            IList<ExprNode> validatedNodes,
            FilterSpecCompilerArgs args)
        {
            if (validatedNodes.IsEmpty())
            {
                return AllocateListArray(0);
            }

            var filterParamExprMap = new FilterParamExprMap();

            // Make filter parameter for each expression node, if it can be optimized
            DecomposePopulateConsolidate(filterParamExprMap, validatedNodes, args);

            // Use all filter parameter and unassigned expressions
            IList<FilterSpecParam> filterParams = new List<FilterSpecParam>();
            filterParams.AddAll(filterParamExprMap.FilterParams);
            int countUnassigned = filterParamExprMap.CountUnassignedExpressions();

            // we are done if there are no remaining nodes
            if (countUnassigned == 0)
            {
                return AllocateListArraySizeOne(filterParams);
            }

            // determine max-width
            int filterServiceMaxFilterWidth =
                args.ConfigurationInformation.EngineDefaults.ExecutionConfig.FilterServiceMaxFilterWidth;
            HintAttribute hint = HintEnum.MAX_FILTER_WIDTH.GetHint(args.Annotations);
            if (hint != null)
            {
                string hintValue = HintEnum.MAX_FILTER_WIDTH.GetHintAssignedValue(hint);
                filterServiceMaxFilterWidth = int.Parse(hintValue);
            }

            IList<FilterSpecParam>[] plan = null;
            if (filterServiceMaxFilterWidth > 0)
            {
                plan = PlanRemainingNodesIfFeasible(filterParamExprMap, args, filterServiceMaxFilterWidth);
            }

            if (plan != null)
            {
                return plan;
            }

            // handle no-plan
            FilterSpecParamExprNode node = MakeRemainingNode(filterParamExprMap.UnassignedExpressions, args);
            filterParams.Add(node);
            return AllocateListArraySizeOne(filterParams);
        }