Package org.apache.flink.runtime.operators.sort

Interface IndexedSortable

All Known Subinterfaces:
InMemorySorter<T>
All Known Implementing Classes:
FixedLengthRecordSorter, NormalizedKeySorter
public interface IndexedSortable

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    compare(int i, int j)
    Compare items at the given addresses consistent with the semantics of Comparator.compare(Object, Object).
    int
    compare(int segmentNumberI, int segmentOffsetI, int segmentNumberJ, int segmentOffsetJ)
    Compare records at the given addresses consistent with the semantics of Comparator.compare(Object, Object).
    int
    recordSize()
    Gets the size of each record, the number of bytes separating the head of successive records.
    int
    recordsPerSegment()
    Gets the number of elements in each memory segment.
    int
    size()
    Gets the number of elements in the sortable.
    void
    swap(int i, int j)
    Swap items at the given addresses.
    void
    swap(int segmentNumberI, int segmentOffsetI, int segmentNumberJ, int segmentOffsetJ)
    Swap records at the given addresses.

  • Method Details

    • compare

      int compare(int i, int j)
      Compare items at the given addresses consistent with the semantics of Comparator.compare(Object, Object).

    • compare

      int compare(int segmentNumberI, int segmentOffsetI, int segmentNumberJ, int segmentOffsetJ)
      Compare records at the given addresses consistent with the semantics of Comparator.compare(Object, Object).
      Parameters:
      segmentNumberI - index of memory segment containing first record
      segmentOffsetI - offset into memory segment containing first record
      segmentNumberJ - index of memory segment containing second record
      segmentOffsetJ - offset into memory segment containing second record
      Returns:
      a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.

    • swap

      void swap(int i, int j)
      Swap items at the given addresses.

    • swap

      void swap(int segmentNumberI, int segmentOffsetI, int segmentNumberJ, int segmentOffsetJ)
      Swap records at the given addresses.
      Parameters:
      segmentNumberI - index of memory segment containing first record
      segmentOffsetI - offset into memory segment containing first record
      segmentNumberJ - index of memory segment containing second record
      segmentOffsetJ - offset into memory segment containing second record

    • size

      int size()
      Gets the number of elements in the sortable.
      Returns:
      The number of elements.

    • recordSize

      int recordSize()
      Gets the size of each record, the number of bytes separating the head of successive records.
      Returns:
      The record size

    • recordsPerSegment

      int recordsPerSegment()
      Gets the number of elements in each memory segment.
      Returns:
      The number of records per segment