Package org.apache.flink.formats.parquet.vector.reader

Interface ColumnReader<VECTOR extends org.apache.flink.table.data.columnar.vector.writable.WritableColumnVector>

All Known Implementing Classes:
AbstractColumnReader, BooleanColumnReader, ByteColumnReader, BytesColumnReader, DoubleColumnReader, FixedLenBytesColumnReader, FloatColumnReader, IntColumnReader, LongColumnReader, NestedColumnReader, NestedPrimitiveColumnReader, ShortColumnReader, TimestampColumnReader
public interface ColumnReader<VECTOR extends org.apache.flink.table.data.columnar.vector.writable.WritableColumnVector>
Read a batch of records for a column to WritableColumnVector from parquet data file.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    readToVector(int readNumber, VECTOR vector)
     

  • Method Details

    • readToVector

      void readToVector(int readNumber, VECTOR vector) throws IOException
      Parameters:
      readNumber - number to read.
      vector - vector to write.
      Throws:
      IOException