Package it.unimi.dsi.compression

Interface Decoder

All Known Implementing Classes:

CanonicalFast64CodeWordDecoder, TreeDecoder

public interface Decoder

Decoding methods for a specific compression technique.

Method Summary

Modifier and Type	Method	Description
int	decode(BooleanIterator iterator)	Decodes the next symbol from the given boolean iterator.
int	decode(InputBitStream ibs)	Decodes the next symbol from the given input bit stream.

Method Details

decode

int decode(BooleanIterator iterator)

Decodes the next symbol from the given boolean iterator.

Note that InputBitStream implements BooleanIterator.

Parameters:

iterator - a boolean iterator.

Returns:

the next symbol decoded from the bits emitted by i

Throws:

NoSuchElementException - if iterator terminates before a symbol has been decoded.

decode

int decode(InputBitStream ibs) throws IOException

Decodes the next symbol from the given input bit stream.

Note that InputBitStream implements BooleanIterator.

Parameters:

ibs - an input bit stream.

Returns:

the next symbol decoded from ibs.

Throws:

IOException