Package org.apache.flink.table.runtime.operators.over

Class ProcTimeUnboundedPrecedingFunction<K>

java.lang.Object
org.apache.flink.api.common.functions.AbstractRichFunction
org.apache.flink.streaming.api.functions.KeyedProcessFunction<K,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>
org.apache.flink.table.runtime.operators.over.ProcTimeUnboundedPrecedingFunction<K>
All Implemented Interfaces:
Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction
public class ProcTimeUnboundedPrecedingFunction<K> extends org.apache.flink.streaming.api.functions.KeyedProcessFunction<K,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>
Process Function for processing-time unbounded OVER window.

E.g.: SELECT currtime, b, c, min(c) OVER (PARTITION BY b ORDER BY proctime ROWS BETWEEN UNBOUNDED preceding AND CURRENT ROW), max(c) OVER (PARTITION BY b ORDER BY proctime ROWS BETWEEN UNBOUNDED preceding AND CURRENT ROW) FROM T.

See Also:

  • Nested Class Summary

    Nested classes/interfaces inherited from class org.apache.flink.streaming.api.functions.KeyedProcessFunction

    org.apache.flink.streaming.api.functions.KeyedProcessFunction.Context, org.apache.flink.streaming.api.functions.KeyedProcessFunction.OnTimerContext

  • Constructor Summary

    Constructors
    Constructor
    Description
    ProcTimeUnboundedPrecedingFunction(org.apache.flink.api.common.state.StateTtlConfig ttlConfig, GeneratedAggsHandleFunction genAggsHandler, org.apache.flink.table.types.logical.LogicalType[] accTypes)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    close()
     
    void
    open(org.apache.flink.api.common.functions.OpenContext openContext)
     
    void
    processElement(org.apache.flink.table.data.RowData input, org.apache.flink.streaming.api.functions.KeyedProcessFunction<K,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>.org.apache.flink.streaming.api.functions.KeyedProcessFunction.Context ctx, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
     

    Methods inherited from class org.apache.flink.streaming.api.functions.KeyedProcessFunction

    onTimer

    Methods inherited from class org.apache.flink.api.common.functions.AbstractRichFunction

    getIterationRuntimeContext, getRuntimeContext, setRuntimeContext

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • ProcTimeUnboundedPrecedingFunction

      public ProcTimeUnboundedPrecedingFunction(org.apache.flink.api.common.state.StateTtlConfig ttlConfig, GeneratedAggsHandleFunction genAggsHandler, org.apache.flink.table.types.logical.LogicalType[] accTypes)

  • Method Details

    • open

      public void open(org.apache.flink.api.common.functions.OpenContext openContext) throws Exception
      Specified by:
      open in interface org.apache.flink.api.common.functions.RichFunction
      Overrides:
      open in class org.apache.flink.api.common.functions.AbstractRichFunction
      Throws:
      Exception

    • processElement

      public void processElement(org.apache.flink.table.data.RowData input, org.apache.flink.streaming.api.functions.KeyedProcessFunction<K,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>.org.apache.flink.streaming.api.functions.KeyedProcessFunction.Context ctx, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out) throws Exception
      Specified by:
      processElement in class org.apache.flink.streaming.api.functions.KeyedProcessFunction<K,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>
      Throws:
      Exception

    • close

      public void close() throws Exception
      Specified by:
      close in interface org.apache.flink.api.common.functions.RichFunction
      Overrides:
      close in class org.apache.flink.api.common.functions.AbstractRichFunction
      Throws:
      Exception