refactor: Implementierung an Branch `stored-offsets` angepasst

[demos/kafka/training] / src / main / java / de / juplo / kafka / RecordHandler.java

diff --git a/src/main/java/de/juplo/kafka/RecordHandler.java b/src/main/java/de/juplo/kafka/RecordHandler.java
new file mode 100644 (file)
index 0000000..ff2f193
--- /dev/null
+++ b/src/main/java/de/juplo/kafka/RecordHandler.java
@@ -0,0 +1,16 @@
+package de.juplo.kafka;
+
+import org.apache.kafka.clients.consumer.ConsumerRecord;
+import org.apache.kafka.common.TopicPartition;
+
+import java.util.function.Consumer;
+
+
+public interface RecordHandler<K, V> extends Consumer<ConsumerRecord<K,V>>
+{
+  default void beforeNextPoll() {}
+
+  default void onPartitionAssigned(TopicPartition tp) {}
+
+  default void onPartitionRevoked(TopicPartition tp) {}
+}