icc.tags

Class ICCTagTable

java.lang.Object

java.util.Dictionary<K,V>

java.util.Hashtable

icc.tags.ICCTagTable

All Implemented Interfaces:

Serializable, Cloneable, Map

public class ICCTagTable
extends 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.

Version:

1.0

Author:

Bruce A. Kern

See Also:

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

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ICCTagTable(byte[] data) Ctor used by factory method.

Method Summary

Methods

Modifier and Type	Method and Description
static ICCTagTable	createInstance(byte[] data) Factory method for creating a tag table from raw input.
String	toString() Representation of a tag table
void	write(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

Constructor Detail

ICCTagTable

protected ICCTagTable(byte[] data)

Ctor used by factory method.

Parameters:

byte - raw tag data

Method Detail

toString

public String toString()

Representation of a tag table

Overrides:

toString in class Hashtable

Returns:

String

createInstance

public static ICCTagTable createInstance(byte[] data)

Factory method for creating a tag table from raw input.

Parameters:

byte - array of unstructured data representing a tag

Returns:

ICCTagTable

write

public void write(RandomAccessFile raf)
           throws IOException

Output the table to a disk

Parameters:

raf - RandomAccessFile which receives the table.

Throws:

IOException