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

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 Detail

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.