ROT: Erwartungen an SumBusinessLogic.endSum(String)
[demos/kafka/training] / src / main / java / de / juplo / kafka / AdderBusinessLogic.java
index df8c5f9..549228c 100644 (file)
@@ -32,6 +32,11 @@ public class AdderBusinessLogic
 
   public synchronized Optional<Long> getSum(String user)
   {
-    return Optional.empty();
+    return Optional.ofNullable(state.get(user));
+  }
+
+  public synchronized Long endSum(String user)
+  {
+    return null;
   }
 }