diff -r 1c999569643b -r acf2c31e22d4 samples/consistency/src-api2.0/api/Lookups.java
--- a/samples/consistency/src-api2.0/api/Lookups.java	Sat Jun 14 10:04:51 2008 +0200
+++ b/samples/consistency/src-api2.0/api/Lookups.java	Sat Jun 14 10:04:53 2008 +0200
@@ -1,6 +1,8 @@
 package api;
 
+import java.util.ArrayList;
 import java.util.Collection;
+import java.util.Iterator;
 import java.util.Set;
 
 /** Factory to create various types of lookup instances.
@@ -12,12 +14,30 @@
     private Lookups() {
     }
     
-    public static Lookup fixed(Object... instances) {
-        return null;
+    public static Lookup fixed(final Object... instances) {
+        return new Lookup() {
+            @Override
+            <T> Iterator<T> doLookup(Class<T> clazz) {
+                ArrayList<T> result = new ArrayList<T>();
+                for (Object obj : instances) {
+                    if (clazz.isInstance(obj)) {
+                        result.add(clazz.cast(obj));
+                    }
+                }
+                return result.iterator();
+            }
+        };
     }
     
-    public static Lookup dynamic(Dynamic provider) {
-        return null;
+    public static Lookup dynamic(final Dynamic provider) {
+        return new Lookup() {
+            @Override
+            <T> Iterator<T> doLookup(Class<T> clazz) {
+                ArrayList<T> result = new ArrayList<T>();
+                provider.computeInstances(clazz, result);
+                return result.iterator();
+            }
+        };
     }
     
     public interface Dynamic {