com.lizardtech.djvu
Class IFFEnumeration

java.lang.Object
  com.lizardtech.djvu.DjVuObject
      com.lizardtech.djvu.IFFEnumeration

All Implemented Interfaces:

DjVuInterface, java.util.Enumeration

public class IFFEnumeration
extends DjVuObject
implements java.util.Enumeration

This Enumeration iterates over a CachedInputStream as an ordered list of CachedInputStream's. The chunk id's are stored in the CachedInputStream as the name value. IFF files were originally intended for audio. But is well suited for any streaming data.

Field Summary

protected CachedInputStream	input The raw input stream.
protected CachedInputStream	next The next CachedInputStream object on the list

Fields inherited from class com.lizardtech.djvu.DjVuObject

hasReferences

Constructor Summary

IFFEnumeration()
Creates a new IFFEnumeration object.

Method Summary

static boolean	check_id(java.lang.String id) Check for the specified id
static IFFEnumeration	createIFFEnumeration(DjVuInterface ref) Creates an instance of IFFEnumeration with the options interherited from the specified reference.
boolean	hasMoreElements() Query if there are more CachedInputStream's available.
IFFEnumeration	init(CachedInputStream input) Initialize this stream.
java.lang.Object	nextElement() Query the next CachedInputStream.

Methods inherited from class com.lizardtech.djvu.DjVuObject

checkLockTime, create, create, createSoftReference, createWeakReference, getDjVuOptions, getFromReference, invoke, logError, printStackTrace, setDjVuOptions, verbose

Methods inherited from class java.lang.Object

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

Field Detail

input

protected CachedInputStream input

The raw input stream.

next

protected CachedInputStream next

The next CachedInputStream object on the list

Constructor Detail

IFFEnumeration

public IFFEnumeration()

Creates a new IFFEnumeration object.

Method Detail

createIFFEnumeration

public static IFFEnumeration createIFFEnumeration(DjVuInterface ref)

Creates an instance of IFFEnumeration with the options interherited from the specified reference.

Parameters:

ref - Object to interherit DjVuOptions from.

Returns:

a new instance of IFFEnumeration.

init

public IFFEnumeration init(CachedInputStream input)

Initialize this stream.

Parameters:

input - data source

Returns:

the initialized stream

hasMoreElements

public boolean hasMoreElements()

Query if there are more CachedInputStream's available.

Specified by:

hasMoreElements in interface java.util.Enumeration

Returns:

True if there is another CachedInputStream available.

nextElement

public java.lang.Object nextElement()
                             throws java.util.NoSuchElementException

Query the next CachedInputStream.

Specified by:

nextElement in interface java.util.Enumeration

Returns:

The next CachedInputStream.

Throws:

java.util.NoSuchElementException - if there are no more streams available.

check_id

public static boolean check_id(java.lang.String id)
                        throws java.io.IOException

Check for the specified id

Parameters:

id - id to check for

Returns:

true if the id was found

Throws:

java.io.IOException - if an error occurs