Package org.apache.flink.table.data.binary

Interface BinaryFormat

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      int getOffset()
      Gets the start offset of this binary data in the MemorySegments.
      org.apache.flink.core.memory.MemorySegment[] getSegments()
      Gets the underlying MemorySegments this binary format spans.
      int getSizeInBytes()
      Gets the size in bytes of this binary data.

    • Field Detail

      • MAX_FIX_PART_DATA_SIZE

        static final int MAX_FIX_PART_DATA_SIZE
        It decides whether to put data in FixLenPart or VarLenPart. See more in BinaryRowData.

        If len is less than 8, its binary format is: 1-bit mark(1) = 1, 7-bits len, and 7-bytes data. Data is stored in fix-length part.

        If len is greater or equal to 8, its binary format is: 1-bit mark(1) = 0, 31-bits offset to the data, and 4-bytes length of data. Data is stored in variable-length part.

        See Also:
        Constant Field Values

      • HIGHEST_FIRST_BIT

        static final long HIGHEST_FIRST_BIT
        To get the mark in highest bit of long. Form: 10000000 00000000 ... (8 bytes)

        This is used to decide whether the data is stored in fixed-length part or variable-length part. see MAX_FIX_PART_DATA_SIZE for more information.

        See Also:
        Constant Field Values

      • HIGHEST_SECOND_TO_EIGHTH_BIT

        static final long HIGHEST_SECOND_TO_EIGHTH_BIT
        To get the 7 bits length in second bit to eighth bit out of a long. Form: 01111111 00000000 ... (8 bytes)

        This is used to get the length of the data which is stored in this long. see MAX_FIX_PART_DATA_SIZE for more information.

        See Also:
        Constant Field Values

    • Method Detail

      • getSegments

        org.apache.flink.core.memory.MemorySegment[] getSegments()
        Gets the underlying MemorySegments this binary format spans.

      • getOffset

        int getOffset()
        Gets the start offset of this binary data in the MemorySegments.

      • getSizeInBytes

        int getSizeInBytes()
        Gets the size in bytes of this binary data.