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Forked from miguno/aggregation.java
Created January 9, 2020 22:16
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Kafka Streams Example: Continuously aggregating a stream into a table
// Continuously aggregating a KStream into a KTable.
KStream<String, String> locationUpdatesStream = ...;
KTable<String, Long> locationsPerUser
= locationUpdatesStream
.groupBy((k, v) -> v.username)
.count();
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