Class HuffmanTable

java.lang.Object

org.apache.pdfbox.jbig2.decoder.huffman.HuffmanTable

Direct Known Subclasses:

EncodedTable, FixedSizeTable, StandardTables.StandardTable

public abstract class HuffmanTable
extends Object

This abstract class is the base class for all types of huffman tables.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	HuffmanTable.Code	This static class represents a code for use in huffman tables.

Field Summary

Fields

Modifier and Type	Field	Description
private InternalNode	rootNode

Constructor Summary

Constructors

Constructor	Description
HuffmanTable()

Method Summary

Modifier and Type	Method	Description
static String	codeTableToString(List<HuffmanTable.Code> codeTable)
long	decode(ImageInputStream iis)
void	initTree(List<HuffmanTable.Code> codeTable)
private void	preprocessCodes(List<HuffmanTable.Code> codeTable)
String	toString()

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

rootNode

private InternalNode rootNode

Constructor Details

HuffmanTable

public HuffmanTable()

Method Details

initTree

public void initTree(List<HuffmanTable.Code> codeTable)

decode

public long decode(ImageInputStream iis)
            throws IOException

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object

codeTableToString

public static String codeTableToString(List<HuffmanTable.Code> codeTable)

preprocessCodes

private void preprocessCodes(List<HuffmanTable.Code> codeTable)