Changeset 2757 for trunk/sources/HeuristicLab.Parameters/3.3/LookupParameter.cs

Timestamp:

02/08/10 03:43:36 (14 years ago)

Author:

swagner

Message:

Operator architecture refactoring (#95)

• worked on parameters and operators

File:

• trunk/sources/HeuristicLab.Parameters/3.3/LookupParameter.cs (modified) (4 diffs)

trunk/sources/HeuristicLab.Parameters/3.3/LookupParameter.cs

@@ -32 +32 @@
   /// A parameter whose value is retrieved from the scope.
   /// </summary>
-  [Item("LookupParameter<T>", "A parameter whose value is retrieved from the scope.")]
+  [Item("LookupParameter<T>", "A parameter whose value is retrieved from or written to a scope.")]
   public class LookupParameter<T> : Parameter, ILookupParameter<T> where T : class, IItem {
     [Storable]
@@ -46 +46 @@
       }
     }
-    public T ActualValue {
-      get { return GetActualValue(); }
+    public new T ActualValue {
+      get { return (T)GetActualValue(); }
       set { SetActualValue(value); }
     }
@@ -80 +80 @@
       return scope != null ? scope.Variables[actualName] : null;
     }
-    protected virtual T GetActualValue() {
+    protected override IItem GetActualValue() {
       string name = TranslateName(Name, ExecutionContext);
       IVariable var = LookupVariable(name);
@@ -95 +95 @@
       return null;
     }
-    protected virtual void SetActualValue(T value) {
+    protected override void SetActualValue(IItem value) {
+      T val = value as T;
+      if (val == null)
+        throw new InvalidOperationException(
+          string.Format("Type mismatch. Value is not a \"{0}\".",
+                        typeof(T).GetPrettyName())
+        );
       string name = TranslateName(Name, ExecutionContext);
       IVariable var = LookupVariable(name);
-      if (var != null) var.Value = value;
-      else ExecutionContext.Scope.Variables.Add(new Variable(name, value));
+      if (var != null) var.Value = val;
+      else ExecutionContext.Scope.Variables.Add(new Variable(name, val));
     }