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KStream<K, V> filter(RichPredicate<? super K, ? super V> predicate);
KStream<K, V> filterNot(RichPredicate<? super K, ? super V> predicate);
<KR> KStream<KR, V> selectKey(RichKeyValueMapper<? super K, ? super V, ? extends KR> mapper);
<KR, VR> KStream<KR, VR> map(RichKeyValueMapper<? super K, ? super V, ? extends KeyValue<? extends KR, ? extends VR>> mapper);
<VR> KStream<K, VR> mapValues(RichValueMapper<? super K, ? super V, ? extends VR> mapper);
<KR, VR> KStream<KR, VR> flatMap(final RichKeyValueMapper<? super K, ? super V, ? extends Iterable<? extends KeyValue<? extends KR, ? extends VR>>> mapper);
<VR> KStream<K, VR> flatMapValues(final RichValueMapper<? super K, ? super V, ? extends Iterable<? extends VR>> mapper);
void foreach(final RichForeachAction<? super K, ? super V> action);
KStream<K, V> peek(final RichForeachAction<? super K, ? super V> action);
KStream<K, V>[] branch(final RichPredicate<? super K, ? super V>... predicates);
 

<VR> KStream<K, VR> transformValues(final RichValueTransformerSupplier<? super K, ? super V, ? extends VR> valueTransformerSupplier,
                                    final String... stateStoreNames);
<KR> KGroupedStream<KR, V> groupBy(final RichKeyValueMapper<? super K, ? super V, KR> selector);
<KR> KGroupedStream<KR, V> groupBy(final RichKeyValueMapper<? super K, ? super V, KR> selector,
                                   final Serialized<KR, V> serialized);
<KR> KGroupedStream<KR, V> groupBy(final RichKeyValueMapper<? super K, ? super V, KR> selector,
                                   final Serde<KR> keySerde,
                                   final Serde<V> valSerde);
 

<VO, VR> KStream<K, VR> join(final KStream<K, VO> otherStream,
                             final RichValueJoiner<? super K, ? super V, ? super VO, ? extends VR> joiner,
                             final JoinWindows windows);
<VO, VR> KStream<K, VR> join(final KStream<K, VO> otherStream,
                             final RichValueJoiner<? super K, ? super V, ? super VO, ? extends VR> joiner,
                             final JoinWindows windows,
                             final Joined<K, V, VO> joined);
 

<VO, VR> KStream<K, VR> leftJoin(final KStream<K, VO> otherStream,
                                 final RichValueJoiner<? super K, ? super V, ? super VO, ? extends VR> joiner,
                                 final JoinWindows windows);
<VO, VR> KStream<K, VR> leftJoin(final KStream<K, VO> otherStream,
                                 final RichValueJoiner<? super K, ? super V, ? super VO, ? extends VR> joiner,
                                 final JoinWindows windows,
                                 final Joined<K, V, VO> joined);
 

<VO, VR> KStream<K, VR> outerJoin(final KStream<K, VO> otherStream,
                                  final RichValueJoiner<? super K, ? super V, ? super VO, ? extends VR> joiner,
                                  final JoinWindows windows);
<VO, VR> KStream<K, VR> outerJoin(final KStream<K, VO> otherStream,
                                  final RichValueJoiner<? super K, ? super V, ? super VO, ? extends VR> joiner,
                                  final JoinWindows windows,
                                  final Joined<K, V, VO> joined);
 

<VT, VR> KStream<K, VR> join(final KTable<K, VT> table,
                             final RichValueJoiner<? super K, ? super V, ? super VT, ? extends VR> joiner);
<VT, VR> KStream<K, VR> join(final KTable<K, VT> table,
                             final RichValueJoiner<? super K, ? super V, ? super VT, ? extends VR> joiner,
                             final Joined<K, V, VT> joined);
 

<VT, VR> KStream<K, VR> leftJoin(final KTable<K, VT> table,
                                 final RichValueJoiner<? super K, ? super V, ? super VT, ? extends VR> joiner);
<VT, VR> KStream<K, VR> leftJoin(final KTable<K, VT> table,
                                 final RichValueJoiner<? super K, ? super V, ? super VT, ? extends VR> joiner,
                                 final Joined<K, V, VT> joined);
<VT, VR> KStream<K, VR> leftJoin(final KTable<K, VT> table,
                                 final RichValueJoiner<? super K, ? super V, ? super VT, ? extends VR> joiner,
                                 final Serde<K> keySerde,
                                 final Serde<V> valSerde);
 

<GK, GV, RV> KStream<K, RV> join(final GlobalKTable<GK, GV> globalKTable,
                                 final KeyValueMapper<? super K, ? super V, ? extends GK> keyValueMapper,
                                 final RichValueJoiner<? super VK, ? super V, ? super GV, ? extends RV> joiner);
<GK, GV, RV> KStream<K, RV> join(final GlobalKTable<GK, GV> globalKTable,
                                 final RichKeyValueMapper<? super K, ? super V, ? extends GK> keyValueMapper,
                                 final ValueJoiner<? super V, ? super GV, ? extends RV> joiner);
<GK, GV, RV> KStream<K, RV> join(final GlobalKTable<GK, GV> globalKTable,
                                 final RichKeyValueMapper<? super K, ? super V, ? extends GK> keyValueMapper,
                                 final RichValueJoiner<? super K, ? super V, ? super GV, ? extends RV> joiner);



<GK, GV, RV> KStream<K, RV> leftJoin(final GlobalKTable<GK, GV> globalKTable,
                                     final KeyValueMapper<? super K, ? super V, ? extends GK> keyValueMapper,
                                     final RichValueJoiner<? super K, ? super V, ? super GV, ? extends RV> valueJoiner);
<GK, GV, RV> KStream<K, RV> leftJoin(final GlobalKTable<GK, GV> globalKTable,
                                     final RichKeyValueMapper<? super K, ? super V, ? extends GK> keyValueMapper,
                                     final ValueJoiner<? super V, ? super GV, ? extends RV> valueJoiner);
<GK, GV, RV> KStream<K, RV> leftJoin(final GlobalKTable<GK, GV> globalKTable,
                                     final RichKeyValueMapper<? super K, ? super V, ? extends GK> keyValueMapper,
                                     final RichValueJoiner<? super K, ? super V, ? super GV, ? extends RV> valueJoiner);

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KTable

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Code Block
language java
KTable<K, V> filter(final RichPredicate<? super K, ? super V> predicate); KTable<K, V> filter(final RichPredicate<? super K, ? super V> predicate, final String queryableStoreName); KTable<K, V> filter(final RichPredicate<? super K, ? super V> predicate, final StateStoreSupplier<KeyValueStore> storeSupplier); final Materialized<K, V, KeyValueStore<Bytes, byte[]>> materialized); KTable<K, V> filterNot(final RichPredicate<? super K, ? super V> predicate); KTable<K, V> filterNot(final RichPredicate<? super K, ? super V> predicate, final StateStoreSupplier<KeyValueStore> storeSupplier); KTable<K, V> filterNot(final RichPredicate<? super K, ? super V> predicate, final String queryableStoreName); <VR> KTable<K, VR> mapValues(final RichValueMapper<? super V, ? extends VR> mapper); final Materialized<K, V, KeyValueStore<Bytes, byte[]>> materialized);   <VR> KTable<K, VR> mapValues(final RichValueMapper<? super K, ? super V, ? extends VR> mapper, final Serde<VR> valueSerde, final String queryableStoreName); <VR> KTable<K, VR> mapValues(final RichValueMapper<? super K, ? super V, ? extends VR> mapper, final Serde<VR>Materialized<K, valueSerdeVR, KeyValueStore<Bytes, byte[]>> materialized); <KR> KStream<KR, V> final StateStoreSupplier<KeyValueStore> storeSupplier); void foreach(final RichForeachAction<? super K, ? super V> action); <KR> KStream<KR, V> toStream(final toStream(final RichKeyValueMapper<? super K, ? super V, ? extends KR> mapper);   <KR, VR> KGroupedTable<KR, VR> groupBy(final RichKeyValueMapper<? super K, ? super V, KeyValue<KR, VR>> selector); <KR, VR> KGroupedTable<KR, VR> groupBy(final RichKeyValueMapper<? super K, ? super V, KeyValue<KR, VR>> selector, final Serde<KR> keySerde, final Serde<VR> valueSerde); <VO, VR> KTable<K, VR> join(final KTable<K, VO> other, final RichValueJoiner<? super V, ? super VO, ? extends VR> joiner); <VO, VR> KTable<K, VR> join(final KTable<K, VO> other, final RichValueJoiner<? super V, ? super VO, ? extends VR> joiner, final Serde<VR> joinSerde, final String queryableStoreName); <VO, VR> KTable<K, VR> join(final KTable<K, VO> other, final RichValueJoiner<? super V, ? super VO, ? extends VR> joiner, final StateStoreSupplier<KeyValueStore> storeSupplier); <VO, VR> KTable<K, VR> leftJoin(final KTable<K, VO> other, final RichValueJoiner<? super V, ? super VO, ? extends VR> joiner); <VO, VR> KTable<K, VR> leftJoin(final KTable<K, VO> other, final RichValueJoiner<? super V, ? super VO, ? extends VR> joiner, final Serialized<KR, VR> serialized);   <VO, VR> KTable<K, VR> join(final KTable<K, VO> other, final Serde<VR> joinSerde, final RichValueJoiner<? super K, ? super V, ? super VO, ? finalextends StringVR> queryableStoreNamejoiner); <VO, VR> KTable<K, VR> leftJoinjoin(final KTable<K, VO> other, final RichValueJoiner<? super finalK, RichValueJoiner<? super V, ? super VO, ? extends VR> joiner, final Materialized<K, VR, final StateStoreSupplier<KeyValueStore> storeSupplierKeyValueStore<Bytes, byte[]>> materialized);   <VO, VR> KTable<K, VR> outerJoinleftJoin(final KTable<K, VO> other, final RichValueJoiner<? super K, ? super V, ? super VO, ? extends VR> joiner); <VO, VR> KTable<K, VR> outerJoinleftJoin(final KTable<K, VO> other, final ValueJoiner<? super K, final RichValueJoiner<? super V, ? super VO, ? extends VR> joiner, final Materialized<K, VR, KeyValueStore<Bytes, byte[]>> materialized);   <VO, VR> KTable<K, VR> outerJoin(final KTable<K, Serde<VR>VO> joinSerdeother, final String queryableStoreName); RichValueJoiner<? super K, ? super V, ? super VO, ? extends VR> joiner); <VO, VR> KTable<K, VR> outerJoin(final KTable<K, VO> other, final RichValueJoiner<? super K, ? super V, ? super VO, ? extends VR> joiner, final StateStoreSupplier<KeyValueStore> storeSupplier Materialized<K, VR, KeyValueStore<Bytes, byte[]>> materialized);

 

 

 

• KGroupedStream

 

Code Block
language java
KTable<K, V> reduce(final RichReducer<V> reducer); KTable<K, V> reduce(final RichReducer<V> reducer, final String queryableStoreName); KTable<K, V> reduce(final RichReducer<V> reducer, final StateStoreSupplier<KeyValueStore> storeSupplier); <W extends Window> KTable<Windowed<K>, V> reduce(final RichReducer<V> reducer, final Windows<W> windows, final String queryableStoreName); <W extends Window> KTable<Windowed<K>, V> reduce(final RichReducer<V> reducer, final Windows<W> windows); <W extends Window> KTable<Windowed<K>, V> reduce(final RichReducer<V> reducer, final Windows<W> windows, final StateStoreSupplier<WindowStore> storeSupplier); KTable<Windowed<K>, V> reduce(final RichReducer<V> reducer, final SessionWindows sessionWindows, final String queryableStoreName); KTable<Windowed<K>, V> reduce(final RichReducer<V> reducer, final SessionWindows sessionWindows);   KTable<Windowed<K>, V> reduce(final RichReducer<V> reducer, final SessionWindows sessionWindows, final StateStoreSupplier<SessionStore> storeSupplier); <VR> KTable<K, VR> aggregate(final Initializer<VR> initializer, final RichAggregator<? super K, ? super V, VR> aggregator, final Serde<VR> aggValueSerde, final String queryableStoreName);   <VR> KTable<K, VR> aggregate(final Initializer<VR> initializer, final RichAggregator<? super K, ? super V, VR> aggregator, final Serde<VR> aggValueSerde, final String queryableStoreName); <VR> KTable<K, VR> aggregate(final Initializer<VR> initializer, final Aggregator<? super K, ? super V, VR> aggregator, final Serde<VR> aggValueSerde); <VR> KTable<K, VR> aggregate(final Initializer<VR> initializer, final RichAggregator<? super K, ? super V, VR> aggregator, final Serde<VR> aggValueSerde); <VR> KTable<K, VR> aggregate(final Initializer<VR> initializer, final RichAggregator<? super K, ? super V, VR> aggregator, final StateStoreSupplier<KeyValueStore> storeSupplier); <VR> KTable<K, VR> aggregate(final Initializer<VR> initializer, final RichAggregator<? super K, ? super V, VR> aggregator, final StateStoreSupplier<KeyValueStore> storeSupplier); <W extends Window, VR> KTable<Windowed<K>, VR> aggregate(final Initializer<VR> initializer, final RichAggregator<? super K, ? super V, VR> aggregator, final Windows<W> windows, final Serde<VR> aggValueSerde, final String queryableStoreName); <W extends Window, VR> KTable<Windowed<K>, VR> aggregate(final Initializer<VR> initializer, final RichAggregator<? super K, ? super V, VR> aggregator, final Windows<W> windows, final StateStoreSupplier<WindowStore> storeSupplier); <T> KTable<Windowed<K>, T> aggregate(final Initializer<T> initializer, final RichAggregator<? super K, ? super V, T> aggregator, final Merger<? super K, T> sessionMerger, final SessionWindows sessionWindows, final Serde<T> aggValueSerde, final String queryableStoreName); <T> KTable<Windowed<K>, T> aggregate(final Initializer<T> initializer, final RichAggregator<? super K, ? super V, T> aggregator, final Merger<? super K, T> sessionMerger, final SessionWindows sessionWindows, final Serde<T> aggValueSerde);   <T> KTable<Windowed<K>, T> aggregate(final Initializer<T> initializer, final RichAggregator<? super K, ? super V, T> aggregator, final Merger<? super K, T> sessionMerger, final SessionWindows sessionWindows, final Serde<T> aggValueSerde, final StateStoreSupplier<SessionStore> storeSupplier);

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