Package it.unimi.dsi.compression

Interface PrefixCodec

All Superinterfaces:
Codec
All Known Implementing Classes:
HuffmanCodec, HuTuckerCodec
public interface PrefixCodec extends Codec
A codec based on a set of prefix-free codewords.

Prefix codec work by building a vector of prefix-free codewords, one for each symbol. The method codeWords() returns that vector. Moreover, this interface strengthens the return type of coder() to PrefixCoder.

  • Method Summary

    Modifier and Type
    Method
    Description
    PrefixCoder
    coder()
    Returns a coder for the compression technique represented by this coded.
    BitVector[]
    codeWords()
    Returns the vector of prefix-free codewords used by this prefix coder.

    Methods inherited from interface it.unimi.dsi.compression.Codec

    decoder, size

  • Method Details

    • codeWords

      BitVector[] codeWords()
      Returns the vector of prefix-free codewords used by this prefix coder.
      Returns:
      the vector of prefix-free codewords used by this prefix coder.

    • coder

      PrefixCoder coder()
      Description copied from interface: Codec
      Returns a coder for the compression technique represented by this coded.
      Specified by:
      coder in interface Codec
      Returns:
      a coder for the compression technique represented by this codec.