MultiLevelExpand transformation

vocabularies/Analytics.json

@@ -12,6 +12,9 @@
     },
     "https://sap.github.io/odata-vocabularies/vocabularies/Common.json": {
       "$Include": [{ "$Namespace": "com.sap.vocabularies.Common.v1", "$Alias": "Common" }]
+    },
+    "https://sap.github.io/odata-vocabularies/vocabularies/Hierarchy.json": {
+      "$Include": [{ "$Namespace": "com.sap.vocabularies.Hierarchy.v1", "$Alias": "Hierarchy" }]
     }
   },
   "com.sap.vocabularies.Analytics.v1": {
@@ -161,6 +164,114 @@
         "@[email protected]": "Adding a list of other terms that can be annotated to it.",
         "@Validation.ApplicableTerms": ["Common.Label"]
       }
+    },
+    "MultiLevelExpand": [
+      {
+        "$Kind": "Function",
+        "$EntitySetPath": "InputSet",
+        "$IsBound": true,
+        "@Common.Experimental": true,
+        "@Core.Description": "`$apply` transformation that expands an unnamed leveled hierarchy with custom aggregation of certain properties",
+        "@Core.LongDescription": "Example transformation sequence:\nfilter on columns `Industry`, `Amount` and `Currency`,\norder by `Amount` descending,\nshow 2 levels, with two exceptions\n```\n$apply=filter(Industry in ('IT','AI'))\n/groupby((Country,Region,Segment,Industry),\n         filter($these/aggregate(Amount) gt 0 and\n                $these/aggregate(Currency) ne null))\n/concat(\n  groupby((Country,Region,Segment,Industry))\n    /aggregate($count as LeavesCount),\n  aggregate(Amount,Currency),\n  Analytics.MultiLevelExpand(\n    Levels=[{\"D\":[\"Country\"],\"A\":[\"CountryName\"]},\n            {\"D\":[\"Region\"],\"A\":[\"RegionName\"]},\n            {\"D\":[\"Segment\",\"Industry\"],\"A\":[]}],\n    Aggregation=[\"Amount\",\"Currency\"],\n    SiblingOrder=[{\"Property\":\"Amount\",\"Descending\":true}],\n    ShowLevels=2,\n    ExpandEntries=[{\"Entry\":[\"US\"],\"Levels\":0},\n                   {\"Entry\":[\"DE\",\"BW\"],\"Levels\":1}]\n  )/concat(aggregate($count as ResultEntriesCount),\n           skip(20)/top(10)))\n```\n",
+        "$Parameter": [
+          {
+            "$Name": "InputSet",
+            "$Collection": true,
+            "$Type": "Edm.EntityType",
+            "@Core.Description": "Entity set to be processed"
+          },
+          {
+            "$Name": "Levels",
+            "$Collection": true,
+            "$Type": "Analytics.MultiLevelExpandLevel",
+            "@Core.Description": "Collection of aggregation levels forming a leveled hierarchy",
+            "@Core.LongDescription": "Each element in the collection defines the properties that constitute one level.\n            A property must not referenced by more than one level.\n            The first element in the collection defines the property names of the coarsest level,\n            the following elements define the property names of consecutively finer-grained aggregation levels.\n            The function result is the leveled hierarchy with these levels in preorder,\n            entries on the finest-grained level cannot be expanded further.\n            All referenced properties must be groupable."
+          },
+          {
+            "$Name": "Aggregation",
+            "$Collection": true,
+            "@Core.Description": "Properties to aggregate for all result entries on all levels",
+            "@Core.LongDescription": "All properties in this collection must be custom aggregates."
+          },
+          {
+            "$Name": "SiblingOrder",
+            "$Collection": true,
+            "$Type": "Analytics.MultiLevelExpandSiblingOrder",
+            "@Core.Description": "Sort specification to apply to all direct descendants of a given entry in the resulting leveled hierarchy"
+          },
+          {
+            "$Name": "ShowLevels",
+            "$Type": "Edm.Int64",
+            "@Core.Description": "Number of levels to be shown in the initial expansion (absent means all levels)",
+            "@Core.OptionalParameter": {}
+          },
+          {
+            "$Name": "ExpandEntries",
+            "$Collection": true,
+            "$Type": "Analytics.MultiLevelExpandEntry",
+            "@Core.Description": "Entries with exceptional expansion",
+            "@Core.OptionalParameter": {}
+          },
+          {
+            "$Name": "SubtotalsAtBottom",
+            "$Type": "Edm.Bool",
+            "@Core.Description": "Whether to duplicate the group headers so that they appear before and after their descendants",
+            "@Core.LongDescription": "The entry before has [DrillState](Hierarchy.md#HierarchyType) `expanded`,\n            the entry after has DrillState `subtotal`.",
+            "@Core.OptionalParameter": { "DefaultValue": "false" }
+          }
+        ],
+        "$ReturnType": {
+          "$Collection": true,
+          "$Type": "Edm.EntityType",
+          "@Core.Description": "Output set including the instance annotation [`LevelInformation`](#LevelInformation)"
+        }
+      }
+    ],
+    "MultiLevelExpandLevel": {
+      "$Kind": "ComplexType",
+      "@Common.Experimental": true,
+      "@Core.Description": "Property names constituting a level in an [unnamed leveled hierarchy](#MultiLevelExpand)",
+      "@Core.LongDescription": "Properties in `D` must be used to identify entries in [`ExpandEntries/Entry`](#MultiLevelExpandEntry),\n          otherwise they have the same effect as properties in `A`.",
+      "D": {
+        "$Collection": true,
+        "@Core.Description": "A non-empty set of property names that define a combination of dimension values"
+      },
+      "A": {
+        "$Collection": true,
+        "@Core.Description": "A possibly empty set of names of additional properties of the dimensions that occur in `D`"
+      }
+    },
+    "MultiLevelExpandSiblingOrder": {
+      "$Kind": "ComplexType",
+      "@Common.Experimental": true,
+      "@Core.Description": "Sibling order in an [unnamed leveled hierarchy](#MultiLevelExpand)",
+      "Property": { "@Core.Description": "Property by which to sort" },
+      "Descending": {
+        "$Type": "Edm.Boolean",
+        "$Nullable": true,
+        "@Core.Description": "Sort direction, ascending if not specified otherwise"
+      }
+    },
+    "MultiLevelExpandEntry": {
+      "$Kind": "ComplexType",
+      "@Common.Experimental": true,
+      "@Core.Description": "Expansion state of an entry in an [unnamed leveled hierarchy](#MultiLevelExpand)",
+      "Entry": {
+        "$Collection": true,
+        "@Core.Description": "An entry on a given [level](#MultiLevelExpandLevel) is identified by a collection of values for the `D` properties that constitute all levels up to and including the given one"
+      },
+      "Levels": {
+        "$Type": "Edm.Int64",
+        "$Nullable": true,
+        "@Core.Description": "Number of levels to be expanded, null means all levels, 0 means collapsed"
+      }
+    },
+    "LevelInformation": {
+      "$Kind": "Term",
+      "$Type": "Hierarchy.HierarchyType",
+      "$AppliesTo": ["EntityType"],
+      "@Common.Experimental": true,
+      "@Core.Description": "Information about grouping levels in the result set of a request including the [`MultiLevelExpand`](#MultiLevelExpand) transformation"
     }
   }
 }