Package org.apache.flink.streaming.api.operators

Class AbstractInput<IN,​OUT>

  • All Implemented Interfaces:
    org.apache.flink.streaming.api.operators.Input<IN>, org.apache.flink.streaming.api.operators.KeyContextHandler, org.apache.flink.streaming.runtime.operators.asyncprocessing.AsyncStateProcessing
    @Experimental
public abstract class AbstractInput<IN,​OUT>
extends Object
implements org.apache.flink.streaming.api.operators.Input<IN>, org.apache.flink.streaming.api.operators.KeyContextHandler, org.apache.flink.streaming.runtime.operators.asyncprocessing.AsyncStateProcessing
    Base abstract implementation of Input interface intended to be used when extending AbstractStreamOperatorV2.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected int inputId  
      protected org.apache.flink.streaming.api.operators.Output<org.apache.flink.streaming.runtime.streamrecord.StreamRecord<OUT>> output  
      protected org.apache.flink.streaming.api.operators.AbstractStreamOperatorV2<OUT> owner  
      protected org.apache.flink.api.java.functions.KeySelector<?,​?> stateKeySelector
      KeySelector for extracting a key from an element being processed.

    • Constructor Summary

      Constructors 
      Constructor Description
      AbstractInput​(org.apache.flink.streaming.api.operators.AbstractStreamOperatorV2<OUT> owner, int inputId)  

    • Field Detail

      • stateKeySelector

        @Nullable
protected final org.apache.flink.api.java.functions.KeySelector<?,​?> stateKeySelector
        KeySelector for extracting a key from an element being processed. This is used to scope keyed state to a key. This is null if the operator is not a keyed operator.

        This is for elements from the first input.

      • owner

        protected final org.apache.flink.streaming.api.operators.AbstractStreamOperatorV2<OUT> owner

      • inputId

        protected final int inputId

      • output

        protected final org.apache.flink.streaming.api.operators.Output<org.apache.flink.streaming.runtime.streamrecord.StreamRecord<OUT>> output

    • Constructor Detail

      • AbstractInput

        public AbstractInput​(org.apache.flink.streaming.api.operators.AbstractStreamOperatorV2<OUT> owner,
                     int inputId)

    • Method Detail

      • processWatermark

        public void processWatermark​(org.apache.flink.streaming.api.watermark.Watermark mark)
                      throws Exception
        Specified by:
        processWatermark in interface org.apache.flink.streaming.api.operators.Input<IN>
        Throws:
        Exception

      • processLatencyMarker

        public void processLatencyMarker​(org.apache.flink.streaming.runtime.streamrecord.LatencyMarker latencyMarker)
                          throws Exception
        Specified by:
        processLatencyMarker in interface org.apache.flink.streaming.api.operators.Input<IN>
        Throws:
        Exception

      • processWatermarkStatus

        public void processWatermarkStatus​(org.apache.flink.streaming.runtime.watermarkstatus.WatermarkStatus watermarkStatus)
                            throws Exception
        Specified by:
        processWatermarkStatus in interface org.apache.flink.streaming.api.operators.Input<IN>
        Throws:
        Exception

      • setKeyContextElement

        public void setKeyContextElement​(org.apache.flink.streaming.runtime.streamrecord.StreamRecord record)
                          throws Exception
        Specified by:
        setKeyContextElement in interface org.apache.flink.streaming.api.operators.Input<IN>
        Throws:
        Exception

      • processRecordAttributes

        public void processRecordAttributes​(org.apache.flink.streaming.runtime.streamrecord.RecordAttributes recordAttributes)
                             throws Exception
        Specified by:
        processRecordAttributes in interface org.apache.flink.streaming.api.operators.Input<IN>
        Throws:
        Exception

      • hasKeyContext

        public boolean hasKeyContext()
        Specified by:
        hasKeyContext in interface org.apache.flink.streaming.api.operators.KeyContextHandler

      • isAsyncStateProcessingEnabled

        @Internal
public final boolean isAsyncStateProcessingEnabled()
        Specified by:
        isAsyncStateProcessingEnabled in interface org.apache.flink.streaming.runtime.operators.asyncprocessing.AsyncStateProcessing

      • getRecordProcessor

        @Internal
public final org.apache.flink.util.function.ThrowingConsumer<org.apache.flink.streaming.runtime.streamrecord.StreamRecord<IN>,​Exception> getRecordProcessor​(int inputId)
        Specified by:
        getRecordProcessor in interface org.apache.flink.streaming.runtime.operators.asyncprocessing.AsyncStateProcessing