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

Methods

Modifier and Type	Method and 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 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.