Package org.apache.hadoop.io

Class ByteWritable

java.lang.Object
org.apache.hadoop.io.ByteWritable
All Implemented Interfaces:
Comparable<ByteWritable>, Writable, WritableComparable<ByteWritable>
@Public @Stable public class ByteWritable extends Object implements WritableComparable<ByteWritable>
A WritableComparable for a single byte.

  • Constructor Details

    • ByteWritable

      public ByteWritable()

    • ByteWritable

      public ByteWritable(byte value)

  • Method Details

    • set

      public void set(byte value)
      Set the value of this ByteWritable.
      Parameters:
      value - value.

    • get

      public byte get()
      Return the value of this ByteWritable.
      Returns:
      value bytes.

    • readFields

      public void readFields(DataInput in) throws IOException
      Description copied from interface: Writable
      Deserialize the fields of this object from in.

      For efficiency, implementations should attempt to re-use storage in the existing object where possible.

      Specified by:
      readFields in interface Writable
      Parameters:
      in - DataInput to deseriablize this object from.
      Throws:
      IOException - any other problem for readFields.

    • write

      public void write(DataOutput out) throws IOException
      Description copied from interface: Writable
      Serialize the fields of this object to out.
      Specified by:
      write in interface Writable
      Parameters:
      out - DataOuput to serialize this object into.
      Throws:
      IOException - any other problem for write.

    • equals

      public boolean equals(Object o)
      Returns true iff o is a ByteWritable with the same value.
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • compareTo

      public int compareTo(ByteWritable o)
      Compares two ByteWritables.
      Specified by:
      compareTo in interface Comparable<ByteWritable>

    • toString

      public String toString()
      Overrides:
      toString in class Object