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Code Block

language	java
title	KStream

void print(final PrintOptions<K, V> printOptions);

KStream<K, V> through(final String topic, final Topic<KTopicOptions<K, V> topicOptions);

void to(final String topic, final Topic<VTopicOptions<V, V> topicOptions);

KGroupedStream<K, V> groupByKey(final GroupByOptions<K, V> groupByOptions);

<KR> KGroupedStream<KR, V> groupBy(final KeyValueMapper<? super K, ? super V, KR> selector, GroupByOptions<KR, V> groupByOptions);

<VO, VR> KStream<K, VR> join(final KStream<K, VO> other, final ValueJoiner<? super V, ? super VO, ? extends VR> joiner, final JoinWindows windows, final JoinOptions<K, V, VO> options);

<VT, VR> KStream<K, VR> join(final KTable<K, VT> other, final ValueJoiner<? super V, ? super VT, ? extends VR> joiner, final JoinOptions<K, V, VT> options);

<VO, VR> KStream<K, VR> leftJoin(final KStream<K, VO> other, final ValueJoiner<? super V, ? super VO, ? extends VR> joiner, final JoinWindows windows, final JoinOptions<K, V, VO> options);

<VT, VR> KStream<K, VR> leftJoin(final KTable<K, VT> other, final ValueJoiner<? super V, ? super VT, ? extends VR> joiner, final JoinWindows windows, final JoinOptions<K, V, VT> options);

<VO, VR> KStream<K, VR> outerJoin(final KStream<K, VO> other, final ValueJoiner<? super V, ? super VO, ? extends VR> joiner, final JoinWindows windows, final JoinOptions<K, V, VO> options);

<VT, VR> KStream<K, VR> outerJoin(final KTable<K, VT> other, final ValueJoiner<? super V, ? super VT, ? extends VR> joiner, final JoinWindows windows, final JoinOptions<K, V, VT> options);

Code Block

language	java
title	KTable

<KR, VR> KGroupedTable<KR, VR> groupBy(final KeyValueMapper<? super K, ? super V, KeyValue<KR, VR>> selector, GroupByOptions<KR, VR> groupByOptions);

KTable<K, V> filter(final Predicate<? super K, ? super V> predicate, final Materialized Materialized<K, V, KeyValueStore<K, V>> materialized);

KTable<K, V> filterNot(final Predicate<? super K, ? super V> predicate, final Materialized Materialized<K, V, KeyValueStore<K, V>> materialized);

<VR> KTable<K, VR> mapValues(final ValueMapper<? super V, ? extends VR> mapper, final Materialized Materialized<K, V, KeyValueStore<K, V>> materialized);

void to(final String topic, final Topic<VTopicOptions<V, V> options);

KTable<K, V> through(final String topic, final Table<KMaterialized<K, V> options);

<VO, VR> KTable<K, VR> join(final KTable<K, VO> other,
                            final ValueJoiner<? super V, ? super VO, ? extends VR> joiner,
                            final Materialized Materialized<K, V, KeyValueStore<K, VR>> materialized);

<VO, VR> KTable<K, VR> leftJoin(final KTable<K, VO> other,
                                final ValueJoiner<? super V, ? super VO, ? extends VR> joiner,
                                final Materialized Materialized<K, V, KeyValueStore<K, VR>> materialized);

<VO, VR> KTable<K, VR> outerJoin(final KTable<K, VO> other,
                                 final ValueJoiner<? super V, ? super VO, ? extends VR> joiner,
                                 final Materialized Materialized<K, V, KeyValueStore<K, VR>> materialized);

Code Block

<W extends Window> WindowedKStream<K, V> windowedBy(Windows<W> timeWindows);

SessionWindowedKStream<K, V> sessionWindowedBy(SessionWindows sessionWindows);

KTable<K, Long> count(final Materialized materialized);

KTable<K, V> reduce(final Reducer<V> reducer, final Materialized Materialized<K, V, KeyValueStore<K, V>> materialized);

<VR> KTable<K, VR> aggregate(final Initializer<VR> initializer,
                             final Aggregator<? super K, ? super V, VR> aggregator,
                             final Serde<VR> aggValueSerde,
                             final Materialized Materialized<K, V, KeyValueStore<K, V>> materialized);

Code Block

language	java
title	WindowedKStream

public interface WindowedKStream<K, V> {

    KTable<Windowed<K>, Long> count();

    KTable<Windowed<K>, Long> count(final Materialized<K, Long, WindowStore<K, Long>> materializedAs);

    <VR> KTable<Windowed<K>, VR> aggregate(final Initializer<VR> initializer,
                                           final Aggregator<? super K, ? super V, VR> aggregator);

    <VR> KTable<Windowed<K>, VR> aggregate(final Initializer<VR> initializer,
                                           final Aggregator<? super K, ? super V, VR> aggregator,
                                           final Materialized<K, VR, WindowStore<K, VR>> materializedAs);


    KTable<Windowed<K>, V> reduce(final Reducer<V> reducer);

    KTable<Windowed<K>, V> reduce(final Reducer<V> reducer,
                                  final Materialized<K, V, WindowStore<K, V>> materializedAs);


}

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