Package org.apache.flink.table.runtime.generated

Interface NormalizedKeyComputer

public interface NormalizedKeyComputer
Normalized key computer for BinaryInMemorySortBuffer. For performance, subclasses are usually implemented through CodeGenerator.

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    compareKey(org.apache.flink.core.memory.MemorySegment segI, int offsetI, org.apache.flink.core.memory.MemorySegment segJ, int offsetJ)
    Compares two normalized keys in respective MemorySegment.
    int
    getNumKeyBytes()
    Get normalized keys bytes length.
    boolean
    invertKey()
    Flag whether normalized key comparisons should be inverted key.
    boolean
    isKeyFullyDetermines()
    whether the normalized key can fully determines the comparison.
    void
    putKey(org.apache.flink.table.data.RowData record, org.apache.flink.core.memory.MemorySegment target, int offset)
    Writes a normalized key for the given record into the target MemorySegment.
    void
    swapKey(org.apache.flink.core.memory.MemorySegment segI, int offsetI, org.apache.flink.core.memory.MemorySegment segJ, int offsetJ)
    Swaps two normalized keys in respective MemorySegment.

  • Method Details

    • putKey

      void putKey(org.apache.flink.table.data.RowData record, org.apache.flink.core.memory.MemorySegment target, int offset)
      Writes a normalized key for the given record into the target MemorySegment.

    • compareKey

      int compareKey(org.apache.flink.core.memory.MemorySegment segI, int offsetI, org.apache.flink.core.memory.MemorySegment segJ, int offsetJ)
      Compares two normalized keys in respective MemorySegment.

    • swapKey

      void swapKey(org.apache.flink.core.memory.MemorySegment segI, int offsetI, org.apache.flink.core.memory.MemorySegment segJ, int offsetJ)
      Swaps two normalized keys in respective MemorySegment.

    • getNumKeyBytes

      int getNumKeyBytes()
      Get normalized keys bytes length.

    • isKeyFullyDetermines

      boolean isKeyFullyDetermines()
      whether the normalized key can fully determines the comparison.

    • invertKey

      boolean invertKey()
      Flag whether normalized key comparisons should be inverted key.