icc.tags
Class ICCTagTable

java.lang.Object
  |
  +--java.util.Dictionary
        |
        +--java.util.Hashtable
              |
              +--icc.tags.ICCTagTable

All Implemented Interfaces:

java.lang.Cloneable, java.util.Map, java.io.Serializable

public class ICCTagTable

extends java.util.Hashtable

This class models an ICCTagTable as a HashTable which maps ICCTag signatures (as Integers) to ICCTags. On disk the tag table exists as a byte array conventionally aggragted into a structured sequence of types (bytes, shorts, ints, and floats. The first four bytes are the integer count of tags in the table. This is followed by an array of triplets, one for each tag. The triplets each contain three integers, which are the tag signature, the offset of the tag in the byte array and the length of the tag in bytes. The tag data follows. Each tag consists of an integer (4 bytes) tag type, a reserved integer and the tag data, which varies depending on the tag.

See Also:

jj2000.j2k.icc.tags.ICCTag, Serialized Form

Nested Class Summary

private static class

ICCTagTable.Triplet

Nested classes inherited from class java.util.Hashtable

Nested classes inherited from class java.util.Map

java.util.Map.Entry

Field Summary

private static java.lang.String	eol
private static int	offTagCount
private static int	offTags
private int	tagCount
private java.util.Vector	trios

Fields inherited from class java.util.Hashtable

Constructor Summary

protected

ICCTagTable(byte[] data) Ctor used by factory method.

Method Summary

static ICCTagTable	createInstance(byte[] data) Factory method for creating a tag table from raw input.
java.lang.String	toString() Representation of a tag table
void	write(java.io.RandomAccessFile raf) Output the table to a disk

Methods inherited from class java.util.Hashtable

clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, get, hashCode, isEmpty, keys, keySet, put, putAll, rehash, remove, size, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

eol

private static final java.lang.String eol

offTagCount

private static final int offTagCount

See Also:

Constant Field Values

offTags

private static final int offTags

See Also:

Constant Field Values

trios

private final java.util.Vector trios

tagCount

private int tagCount

Constructor Detail

ICCTagTable

protected ICCTagTable(byte[] data)

Ctor used by factory method.

Method Detail

toString

public java.lang.String toString()

Representation of a tag table

Overrides:

toString in class java.util.Hashtable

Returns:

String

createInstance

public static ICCTagTable createInstance(byte[] data)

Factory method for creating a tag table from raw input.

Returns:

ICCTagTable

write

public void write(java.io.RandomAccessFile raf)
           throws java.io.IOException

Output the table to a disk

Parameters:

raf - RandomAccessFile which receives the table.

Throws:

java.io.IOException