Changeset 1419 for branches/New Persistence Exploration/Persistence/Persistence/Default/Decomposers/KeyValuePairDecomposer.cs

Timestamp:

03/25/09 17:16:32 (15 years ago)

Author:

epitzer

Message:

Implement persistence of storables as decomposer. (#506)

File:

• branches/New Persistence Exploration/Persistence/Persistence/Default/Decomposers/KeyValuePairDecomposer.cs (modified) (2 diffs)

branches/New Persistence Exploration/Persistence/Persistence/Default/Decomposers/KeyValuePairDecomposer.cs

@@ -1 +1 @@
 using System;
+using System.Linq;
 using System.Collections;
 using System.Collections.Generic;
@@ -16 +17 @@
     }
 
-    public IEnumerable DeCompose(object o) {      
+    public IEnumerable<Tag> DeCompose(object o) {      
       Type t = o.GetType();
-      yield return t.GetProperty("Key").GetValue(o, null);
-      yield return t.GetProperty("Value").GetValue(o, null);
+      yield return new Tag("key", t.GetProperty("Key").GetValue(o, null));
+      yield return new Tag("value", t.GetProperty("Value").GetValue(o, null));
     }
 
-    public object Compose(IEnumerable o, Type t) {      
-      return Activator.CreateInstance(t,
-        new List<object>((IEnumerable<object>)o).ToArray());
+    public object CreateInstance(Type type) {
+      return null;
+    }
+
+    public object Populate(object instance, IEnumerable<Tag> o, Type t) {
+      IEnumerator<Tag> iter = o.GetEnumerator();
+      iter.MoveNext();
+      object key = iter.Current.Value;
+      iter.MoveNext();
+      object value = iter.Current.Value;
+      return Activator.CreateInstance(t, new object[] { key, value });      
     }    
   }