X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2FSumBusinessLogic.java;h=5cb906a8a8a0b41cf8aa84e1430cf197ff7c1d57;hb=614ab1f07d1cae49c06b8bcbd6132e0aa5827246;hp=e6626062ed84c4fb4c4eadc89d99b07440c507d1;hpb=20ab53ca995a7244ff7fca318ea70b6c439a960a;p=demos%2Fkafka%2Ftraining

diff --git a/src/main/java/de/juplo/kafka/SumBusinessLogic.java b/src/main/java/de/juplo/kafka/SumBusinessLogic.java
index e662606..5cb906a 100644
--- a/src/main/java/de/juplo/kafka/SumBusinessLogic.java
+++ b/src/main/java/de/juplo/kafka/SumBusinessLogic.java
@@ -2,6 +2,7 @@ package de.juplo.kafka;
 
 import java.util.HashMap;
 import java.util.Map;
+import java.util.Optional;
 
 
 public class SumBusinessLogic
@@ -27,4 +28,9 @@ public class SumBusinessLogic
 
     state.put(user, 0l);
   }
+
+  public synchronized Optional<Long> getSum(String user)
+  {
+    return Optional.empty();
+  }
 }