Package org.apache.hadoop.hbase.types

Class OrderedFloat32

java.lang.Object
org.apache.hadoop.hbase.types.OrderedBytesBase<Float>
org.apache.hadoop.hbase.types.OrderedFloat32
All Implemented Interfaces:
DataType<Float>
@Public public class OrderedFloat32 extends OrderedBytesBase<Float>
A float of 32-bits using a fixed-length encoding. Based on OrderedBytes.encodeFloat32(PositionedByteRange, float, Order).

  • Field Details

  • Constructor Details

    • OrderedFloat32

      public OrderedFloat32(Order order)
      Creates a new 32-bit float with a fixed-length encoding.
      Parameters:
      order - the Order to use

  • Method Details

    • isNullable

      public boolean isNullable()
      Description copied from interface: DataType
      Indicates whether this instance supports encoding null values. This depends on the implementation details of the encoding format. All DataTypes that support null should treat null as comparing less than any non-null value for default sort ordering purposes.
      Specified by:
      isNullable in interface DataType<Float>
      Overrides:
      isNullable in class OrderedBytesBase<Float>
      Returns:
      true when null is supported, false otherwise.

    • encodedLength

      public int encodedLength(Float val)
      Description copied from interface: DataType
      Inform consumers how long the encoded byte[] will be.
      Parameters:
      val - The value to check.
      Returns:
      the number of bytes required to encode val.a

    • encodedClass

      public Class<Float> encodedClass()
      Description copied from interface: DataType
      Inform consumers over what type this DataType operates. Useful when working with bare DataType instances.

    • decode

      public Float decode(PositionedByteRange src)
      Description copied from interface: DataType
      Read an instance of T from the buffer src.
      Parameters:
      src - the buffer containing the encoded value.

    • encode

      public int encode(PositionedByteRange dst, Float val)
      Description copied from interface: DataType
      Write instance val into buffer dst.
      Parameters:
      dst - the buffer containing the encoded value.
      val - the value to encode onto dst.
      Returns:
      number of bytes written.

    • decodeFloat

      public float decodeFloat(PositionedByteRange dst)
      Read a float value from the buffer dst.
      Parameters:
      dst - the PositionedByteRange to read the float from
      Returns:
      the float read from the buffer

    • encodeFloat

      public int encodeFloat(PositionedByteRange dst, float val)
      Write instance val into buffer buff.
      Parameters:
      dst - the PositionedByteRange to write to
      val - the value to write to dst
      Returns:
      the number of bytes written