Changeset 1116 for branches/CEDMA-Refactoring-Ticket419/HeuristicLab.CEDMA.Core/Results.cs

Timestamp:

01/13/09 15:07:31 (15 years ago)

Author:

gkronber

Message:

worked on CEDMA DB-backend. Select() interface to RDF_Store is not powerful enough => need Query() interface. #419
(work in progress - doesn't build!)

File:

• branches/CEDMA-Refactoring-Ticket419/HeuristicLab.CEDMA.Core/Results.cs (modified) (4 diffs)

branches/CEDMA-Refactoring-Ticket419/HeuristicLab.CEDMA.Core/Results.cs

@@ -64 +64 @@
 
     private List<ResultsEntry> entries = null;
+    private bool cached = false;
     public IEnumerable<ResultsEntry> GetEntries() {
-      if (entries == null)
-        Reload();
+      if (!cached)
+        return SelectRows();
       return entries.AsEnumerable();
-    }
-
-    internal void Reload() {
-      entries = SelectRows().ToList();
-      FireChanged();
     }
 
@@ -78 +74 @@
       if (store == null) yield break;
 
-      var results = store.Select(new Statement(dataSetEntity, Ontology.PredicateHasModel, Ontology.AnyEntity))
-         .SelectMany(x => store.Select(new SelectFilter(
-           new Entity[] { (Entity)x.Property },
-           new Entity[] { Ontology.PredicateModelAttribute },
-           new Resource[] { Ontology.AnyEntity })))
-         .SelectMany(x =>
-           store.Select(
-              new SelectFilter(
-              new Entity[] { (Entity)x.Property },
-              new Entity[] { Ontology.PredicateModelAttributeName },
-              new Entity[] { Ontology.AnyEntity })).Select(y =>
-                new {
-                  Model = x.Subject,
-                  Attribute = (Entity)x.Property,
-                  AttributeName = (Literal)y.Property
-                }))
-         .SelectMany(x =>
-           store.Select(
-             new Statement(x.Attribute, Ontology.PredicateModelAttributeValue, Ontology.AnyEntity))
-             .Select(y =>
-               new {
-                 Model = x.Model.Uri,
-                 AttributeName = x.AttributeName.Value,
-                 AttributeValue = ((Literal)y.Property).Value
-               })).GroupBy(x => x.Model);
+      var models = store.Select(new Statement(dataSetEntity, Ontology.PredicateHasModel, Ontology.AnyEntity));
 
+      //var results = store.Select(new Statement(dataSetEntity, Ontology.PredicateHasModel, Ontology.AnyEntity))
+      //   .SelectMany(x => store.Select(new SelectFilter(
+      //     new Entity[] { (Entity)x.Property },
+      //     new Entity[] { Ontology.PredicateModelAttribute },
+      //     new Resource[] { Ontology.AnyEntity })))
+      //   .SelectMany(x =>
+      //     store.Select(
+      //        new SelectFilter(
+      //        new Entity[] { (Entity)x.Property },
+      //        new Entity[] { Ontology.PredicateModelAttributeName },
+      //        new Entity[] { Ontology.AnyEntity })).Select(y =>
+      //          new {
+      //            Model = x.Subject,
+      //            Attribute = (Entity)x.Property,
+      //            AttributeName = (Literal)y.Property
+      //          }))
+      //   .SelectMany(x =>
+      //     store.Select(
+      //       new Statement(x.Attribute, Ontology.PredicateModelAttributeValue, Ontology.AnyEntity))
+      //       .Select(y =>
+      //         new {
+      //           Model = x.Model.Uri,
+      //           AttributeName = x.AttributeName.Value,
+      //           AttributeValue = ((Literal)y.Property).Value
+      //         })).GroupBy(x => x.Model);
 
-      Random random = new Random();
+      entries = new List<ResultsEntry>();
+      foreach (var model in models) {
+        var attributes = store.Select(new Statement((Entity)model.Property, Ontology.PredicateModelAttribute, Ontology.AnyEntity));
+
+        foreach (var attr in attributes) {
+          var namesAndValues = store
+            .Select(new SelectFilter(new Entity[] { (Entity)attr.Property },
+              new Entity[] { Ontology.PredicateModelAttributeName, Ontology.PredicateModelAttributeValue },
+              new Entity[] { Ontology.AnyEntity }));
+        }
+      }
+
       foreach (var row in results) {
         ResultsEntry entry = new ResultsEntry(row.First().Model);
@@ -111 +119 @@
           entry.Set((string)attr.AttributeName, attr.AttributeValue);
         }
+        entries.Add(entry);
         yield return entry;
       }
+
+      FireChanged();
+      cached = true;
     }
 
@@ -120 +132 @@
       var attributeNames =
         store.Select(new Statement(Ontology.AnyEntity, Ontology.PredicateModelAttributeName, Ontology.AnyEntity))
-        .Select(s => (string)((Literal)s.Property).Value)
+        .Select(s => (string)((Literal)s.Property).Value)        
         .Distinct();
       foreach (var name in attributeNames) {