From: Kai Moritz <kai@juplo.de>
Date: Sat, 15 Jun 2024 05:34:30 +0000 (+0200)
Subject: query: 2.0.0 - (GREEN) Explicitly specifed the missing serde-config
X-Git-Tag: popular-on-query~7
X-Git-Url: http://juplo.de/gitweb/?a=commitdiff_plain;h=3ba64ce6decf9343fe689bfb687a9b234cd47ebf;p=demos%2Fkafka%2Fwordcount

query: 2.0.0 - (GREEN) Explicitly specifed the missing serde-config
---

diff --git a/src/main/java/de/juplo/kafka/wordcount/query/QueryStreamProcessor.java b/src/main/java/de/juplo/kafka/wordcount/query/QueryStreamProcessor.java
index 0898e88..e075eb7 100644
--- a/src/main/java/de/juplo/kafka/wordcount/query/QueryStreamProcessor.java
+++ b/src/main/java/de/juplo/kafka/wordcount/query/QueryStreamProcessor.java
@@ -5,10 +5,7 @@ import jakarta.annotation.PreDestroy;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.common.serialization.Serdes;
 import org.apache.kafka.streams.*;
-import org.apache.kafka.streams.kstream.Consumed;
-import org.apache.kafka.streams.kstream.KStream;
-import org.apache.kafka.streams.kstream.KTable;
-import org.apache.kafka.streams.kstream.Materialized;
+import org.apache.kafka.streams.kstream.*;
 import org.apache.kafka.streams.state.HostInfo;
 import org.apache.kafka.streams.state.KeyValueBytesStoreSupplier;
 import org.apache.kafka.streams.state.QueryableStoreTypes;
@@ -74,7 +71,8 @@ public class QueryStreamProcessor
 				.join(users, (ranking, user) -> UserRanking.of(
 						user.getFirstName(),
 						user.getLastName(),
-						ranking.getEntries()))
+						ranking.getEntries()),
+						Joined.keySerde(Serdes.String()))
 				.toTable(
 						Materialized
 								.<String, UserRanking>as(rankingStoreSupplier)