Package org.apache.flink.streaming.api.datastream

Class JoinedStreams.WithWindow<T1,T2,KEY,W extends Window>

java.lang.Object
org.apache.flink.streaming.api.datastream.JoinedStreams.WithWindow<T1,T2,KEY,W>
Type Parameters:
T1 - Type of the elements from the first input
T2 - Type of the elements from the second input
KEY - Type of the key. This must be the same for both inputs
W - Type of Window on which the join operation works.
Enclosing class:
JoinedStreams<T1,T2>
@Public public static class JoinedStreams.WithWindow<T1,T2,KEY,W extends Window> extends Object
A join operation that has KeySelectors defined for both inputs as well as a WindowAssigner.

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    WithWindow(DataStream<T1> input1, DataStream<T2> input2, org.apache.flink.api.java.functions.KeySelector<T1,KEY> keySelector1, org.apache.flink.api.java.functions.KeySelector<T2,KEY> keySelector2, org.apache.flink.api.common.typeinfo.TypeInformation<KEY> keyType, WindowAssigner<? super org.apache.flink.util.TaggedUnion<T1,T2>,W> windowAssigner, Trigger<? super org.apache.flink.util.TaggedUnion<T1,T2>,? super W> trigger, Evictor<? super org.apache.flink.util.TaggedUnion<T1,T2>,? super W> evictor, Duration allowedLateness)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    JoinedStreams.WithWindow<T1,T2,KEY,W>
    allowedLateness(Duration newLateness)
    Sets the time by which elements are allowed to be late.
    <T> SingleOutputStreamOperator<T>
    apply(org.apache.flink.api.common.functions.FlatJoinFunction<T1,T2,T> function)
    Completes the join operation with the user function that is executed for each combination of elements with the same key in a window.
    <T> SingleOutputStreamOperator<T>
    apply(org.apache.flink.api.common.functions.FlatJoinFunction<T1,T2,T> function, org.apache.flink.api.common.typeinfo.TypeInformation<T> resultType)
    Completes the join operation with the user function that is executed for each combination of elements with the same key in a window.
    <T> SingleOutputStreamOperator<T>
    apply(org.apache.flink.api.common.functions.JoinFunction<T1,T2,T> function)
    Completes the join operation with the user function that is executed for each combination of elements with the same key in a window.
    <T> SingleOutputStreamOperator<T>
    apply(org.apache.flink.api.common.functions.JoinFunction<T1,T2,T> function, org.apache.flink.api.common.typeinfo.TypeInformation<T> resultType)
    Completes the join operation with the user function that is executed for each combination of elements with the same key in a window.
    JoinedStreams.WithWindow<T1,T2,KEY,W>
    evictor(Evictor<? super org.apache.flink.util.TaggedUnion<T1,T2>,? super W> newEvictor)
    Sets the Evictor that should be used to evict elements from a window before emission.
    JoinedStreams.WithWindow<T1,T2,KEY,W>
    trigger(Trigger<? super org.apache.flink.util.TaggedUnion<T1,T2>,? super W> newTrigger)
    Sets the Trigger that should be used to trigger window emission.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • WithWindow

      @PublicEvolving protected WithWindow(DataStream<T1> input1, DataStream<T2> input2, org.apache.flink.api.java.functions.KeySelector<T1,KEY> keySelector1, org.apache.flink.api.java.functions.KeySelector<T2,KEY> keySelector2, org.apache.flink.api.common.typeinfo.TypeInformation<KEY> keyType, WindowAssigner<? super org.apache.flink.util.TaggedUnion<T1,T2>,W> windowAssigner, Trigger<? super org.apache.flink.util.TaggedUnion<T1,T2>,? super W> trigger, Evictor<? super org.apache.flink.util.TaggedUnion<T1,T2>,? super W> evictor, @Nullable Duration allowedLateness)

  • Method Details

    • trigger

      @PublicEvolving public JoinedStreams.WithWindow<T1,T2,KEY,W> trigger(Trigger<? super org.apache.flink.util.TaggedUnion<T1,T2>,? super W> newTrigger)
      Sets the Trigger that should be used to trigger window emission.

    • evictor

      @PublicEvolving public JoinedStreams.WithWindow<T1,T2,KEY,W> evictor(Evictor<? super org.apache.flink.util.TaggedUnion<T1,T2>,? super W> newEvictor)
      Sets the Evictor that should be used to evict elements from a window before emission.

      Note: When using an evictor window performance will degrade significantly, since pre-aggregation of window results cannot be used.

    • allowedLateness

      @PublicEvolving public JoinedStreams.WithWindow<T1,T2,KEY,W> allowedLateness(@Nullable Duration newLateness)
      Sets the time by which elements are allowed to be late.
      See Also:

    • apply

      public <T> SingleOutputStreamOperator<T> apply(org.apache.flink.api.common.functions.JoinFunction<T1,T2,T> function)
      Completes the join operation with the user function that is executed for each combination of elements with the same key in a window.

    • apply

      public <T> SingleOutputStreamOperator<T> apply(org.apache.flink.api.common.functions.FlatJoinFunction<T1,T2,T> function, org.apache.flink.api.common.typeinfo.TypeInformation<T> resultType)
      Completes the join operation with the user function that is executed for each combination of elements with the same key in a window.

    • apply

      public <T> SingleOutputStreamOperator<T> apply(org.apache.flink.api.common.functions.FlatJoinFunction<T1,T2,T> function)
      Completes the join operation with the user function that is executed for each combination of elements with the same key in a window.

    • apply

      public <T> SingleOutputStreamOperator<T> apply(org.apache.flink.api.common.functions.JoinFunction<T1,T2,T> function, org.apache.flink.api.common.typeinfo.TypeInformation<T> resultType)
      Completes the join operation with the user function that is executed for each combination of elements with the same key in a window.