Package org.apache.flink.table.runtime.collector

Class TableFunctionCollector<T>

java.lang.Object
org.apache.flink.api.common.functions.AbstractRichFunction
org.apache.flink.table.runtime.collector.TableFunctionCollector<T>
All Implemented Interfaces:
Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction, org.apache.flink.util.Collector<T>
Direct Known Subclasses:
ListenableCollector
public abstract class TableFunctionCollector<T> extends org.apache.flink.api.common.functions.AbstractRichFunction implements org.apache.flink.util.Collector<T>
The basic implementation of collector for TableFunction.
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    TableFunctionCollector()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    close()
     
    Object
    getInput()
    Gets the input value from left table, which will be used to cross join with the result of table function.
    boolean
    isCollected()
    Whether Collector.collect(Object) has been called.
    void
    outputResult(Object result)
    Output final result of this UDTF to downstreams.
    void
    reset()
    Resets the flag to indicate whether [[collect(T)]] has been called.
    void
    setCollector(org.apache.flink.util.Collector<?> collector)
    Sets the current collector, which used to emit the final row.
    void
    setInput(Object input)
    Sets the input row from left table, which will be used to cross join with the result of table function.

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

    getIterationRuntimeContext, getRuntimeContext, open, 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.util.Collector

    collect

  • Constructor Details

    • TableFunctionCollector

      public TableFunctionCollector()

  • Method Details

    • setInput

      public void setInput(Object input)
      Sets the input row from left table, which will be used to cross join with the result of table function.

    • getInput

      public Object getInput()
      Gets the input value from left table, which will be used to cross join with the result of table function.

    • setCollector

      public void setCollector(org.apache.flink.util.Collector<?> collector)
      Sets the current collector, which used to emit the final row.

    • reset

      public void reset()
      Resets the flag to indicate whether [[collect(T)]] has been called.

    • outputResult

      public void outputResult(Object result)
      Output final result of this UDTF to downstreams.

    • isCollected

      public boolean isCollected()
      Whether Collector.collect(Object) has been called.
      Returns:
      True if Collector.collect(Object) has been called.

    • close

      public void close()
      Specified by:
      close in interface org.apache.flink.util.Collector<T>
      Specified by:
      close in interface org.apache.flink.api.common.functions.RichFunction
      Overrides:
      close in class org.apache.flink.api.common.functions.AbstractRichFunction