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

      All Methods Instance Methods Abstract Methods 
      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 Detail

      • 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.