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

Class GroupAggFunctionBase

java.lang.Object
org.apache.flink.api.common.functions.AbstractRichFunction
org.apache.flink.streaming.api.functions.KeyedProcessFunction<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>
org.apache.flink.table.runtime.operators.aggregate.GroupAggFunctionBase
All Implemented Interfaces:
Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction
Direct Known Subclasses:
AsyncStateGroupAggFunction, GroupAggFunction
public abstract class GroupAggFunctionBase extends org.apache.flink.streaming.api.functions.KeyedProcessFunction<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>
Base class for GroupAggFunction and AsyncStateGroupAggFunction.
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

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected final org.apache.flink.table.types.logical.LogicalType[]
    accTypes
    The accumulator types.
    protected RecordEqualiser
    equaliser
     
    protected AggsHandleFunction
    function
     
    protected final GeneratedAggsHandleFunction
    genAggsHandler
    The code generated function used to handle aggregates.
    protected final boolean
    generateUpdateBefore
    Whether this operator will generate UPDATE_BEFORE messages.
    protected final GeneratedRecordEqualiser
    genRecordEqualiser
    The code generated equaliser used to equal RowData.
    protected final RecordCounter
    recordCounter
    Used to count the number of added and retracted input records.
    protected final org.apache.flink.api.common.state.StateTtlConfig
    ttlConfig
    State idle retention config.

  • Constructor Summary

    Constructors
    Constructor
    Description
    GroupAggFunctionBase(GeneratedAggsHandleFunction genAggsHandler, GeneratedRecordEqualiser genRecordEqualiser, org.apache.flink.table.types.logical.LogicalType[] accTypes, int indexOfCountStar, boolean generateUpdateBefore, long stateRetentionTime)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    close()
     
    void
    open(org.apache.flink.api.common.functions.OpenContext openContext)
     

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

    onTimer, processElement

    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

  • Field Details

    • genAggsHandler

      protected final GeneratedAggsHandleFunction genAggsHandler
      The code generated function used to handle aggregates.

    • genRecordEqualiser

      protected final GeneratedRecordEqualiser genRecordEqualiser
      The code generated equaliser used to equal RowData.

    • accTypes

      protected final org.apache.flink.table.types.logical.LogicalType[] accTypes
      The accumulator types.

    • recordCounter

      protected final RecordCounter recordCounter
      Used to count the number of added and retracted input records.

    • generateUpdateBefore

      protected final boolean generateUpdateBefore
      Whether this operator will generate UPDATE_BEFORE messages.

    • ttlConfig

      protected final org.apache.flink.api.common.state.StateTtlConfig ttlConfig
      State idle retention config.

    • function

      protected transient AggsHandleFunction function

    • equaliser

      protected transient RecordEqualiser equaliser

  • Constructor Details

    • GroupAggFunctionBase

      public GroupAggFunctionBase(GeneratedAggsHandleFunction genAggsHandler, GeneratedRecordEqualiser genRecordEqualiser, org.apache.flink.table.types.logical.LogicalType[] accTypes, int indexOfCountStar, boolean generateUpdateBefore, long stateRetentionTime)

  • 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

    • 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