Package org.apache.flink.table.runtime.arrow.writers

Class ArrowFieldWriter<IN>

java.lang.Object
org.apache.flink.table.runtime.arrow.writers.ArrowFieldWriter<IN>
Type Parameters:
IN - Type of the row to write.
Direct Known Subclasses:
ArrayWriter, BigIntWriter, BinaryWriter, BooleanWriter, DateWriter, DecimalWriter, DoubleWriter, FloatWriter, IntWriter, MapWriter, NullWriter, RowWriter, SmallIntWriter, TimestampWriter, TimeWriter, TinyIntWriter, VarBinaryWriter, VarCharWriter
@Internal public abstract class ArrowFieldWriter<IN> extends Object
Base class for arrow field writer which is used to convert a field to an Arrow format.

  • Constructor Summary

    Constructors
    Constructor
    Description
    ArrowFieldWriter(org.apache.arrow.vector.ValueVector valueVector)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    abstract void
    doWrite(IN row, int ordinal)
    Sets the field value as the field at the specified ordinal of the specified row.
    void
    finish()
    Finishes the writing of the current row batch.
    int
    getCount()
    Returns the current count of elements written.
    org.apache.arrow.vector.ValueVector
    getValueVector()
    Returns the underlying container which stores the sequence of values of a column.
    void
    reset()
    Resets the state of the writer to write the next batch of fields.
    void
    write(IN row, int ordinal)
    Writes the specified ordinal of the specified row.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • ArrowFieldWriter

      public ArrowFieldWriter(org.apache.arrow.vector.ValueVector valueVector)

  • Method Details

    • getValueVector

      public org.apache.arrow.vector.ValueVector getValueVector()
      Returns the underlying container which stores the sequence of values of a column.

    • getCount

      public int getCount()
      Returns the current count of elements written.

    • doWrite

      public abstract void doWrite(IN row, int ordinal)
      Sets the field value as the field at the specified ordinal of the specified row.

    • write

      public void write(IN row, int ordinal)
      Writes the specified ordinal of the specified row.

    • finish

      public void finish()
      Finishes the writing of the current row batch.

    • reset

      public void reset()
      Resets the state of the writer to write the next batch of fields.