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

Class AbstractRowTimeUnboundedPrecedingOver<K>

java.lang.Object
org.apache.flink.api.common.functions.AbstractRichFunction
org.apache.flink.streaming.api.functions.KeyedProcessFunction<K,IN,OUT>
org.apache.flink.table.runtime.functions.KeyedProcessFunctionWithCleanupState<K,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>
org.apache.flink.table.runtime.operators.over.AbstractRowTimeUnboundedPrecedingOver<K>
All Implemented Interfaces:
Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction, CleanupState
Direct Known Subclasses:
RowTimeRangeUnboundedPrecedingFunction, RowTimeRowsUnboundedPrecedingFunction
public abstract class AbstractRowTimeUnboundedPrecedingOver<K> extends KeyedProcessFunctionWithCleanupState<K,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>
A basic implementation to support unbounded event-time over-window.
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 AggsHandleFunction
    function
     
    protected org.apache.flink.table.data.utils.JoinedRowData
    output
     

    Fields inherited from class org.apache.flink.table.runtime.functions.KeyedProcessFunctionWithCleanupState

    stateCleaningEnabled

  • Constructor Summary

    Constructors
    Constructor
    Description
    AbstractRowTimeUnboundedPrecedingOver(long minRetentionTime, long maxRetentionTime, GeneratedAggsHandleFunction genAggsHandler, org.apache.flink.table.types.logical.LogicalType[] accTypes, org.apache.flink.table.types.logical.LogicalType[] inputFieldTypes, int rowTimeIdx)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    close()
     
    protected org.apache.flink.metrics.Counter
    getCounter()
     
    void
    onTimer(long timestamp, 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.OnTimerContext ctx, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
     
    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)
    Puts an element from the input stream into state if it is not late.
    protected abstract void
    processElementsWithSameTimestamp(List<org.apache.flink.table.data.RowData> curRowList, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
    Process the same timestamp datas, the mechanism is different between rows and range window.

    Methods inherited from class org.apache.flink.table.runtime.functions.KeyedProcessFunctionWithCleanupState

    cleanupState, initCleanupTimeState, isProcessingTimeTimer, needToCleanupState, registerProcessingCleanupTimer

    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

    Methods inherited from interface org.apache.flink.table.runtime.functions.CleanupState

    registerProcessingCleanupTimer

  • Field Details

    • output

      protected transient org.apache.flink.table.data.utils.JoinedRowData output

    • function

      protected transient AggsHandleFunction function

  • Constructor Details

    • AbstractRowTimeUnboundedPrecedingOver

      public AbstractRowTimeUnboundedPrecedingOver(long minRetentionTime, long maxRetentionTime, GeneratedAggsHandleFunction genAggsHandler, org.apache.flink.table.types.logical.LogicalType[] accTypes, org.apache.flink.table.types.logical.LogicalType[] inputFieldTypes, int rowTimeIdx)

  • Method Details

    • getCounter

      @VisibleForTesting protected org.apache.flink.metrics.Counter getCounter()

    • 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
      Puts an element from the input stream into state if it is not late. Registers a timer for the next watermark.
      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>
      Parameters:
      input - The input value.
      ctx - A 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 that allows querying the timestamp of the element and getting TimerService for registering timers and querying the time. The context is only valid during the invocation of this method, do not store it.
      out - The collector for returning result values.
      Throws:
      Exception

    • onTimer

      public void onTimer(long timestamp, 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.OnTimerContext ctx, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out) throws Exception
      Overrides:
      onTimer in class org.apache.flink.streaming.api.functions.KeyedProcessFunction<K,org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>
      Throws:
      Exception

    • processElementsWithSameTimestamp

      protected abstract void processElementsWithSameTimestamp(List<org.apache.flink.table.data.RowData> curRowList, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out) throws Exception
      Process the same timestamp datas, the mechanism is different between rows and range window.
      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