org.sejda.sambox.xref

Class Xref

java.lang.Object

org.sejda.sambox.xref.Xref

public class Xref
extends Object

Xref table/stream entries.

Author:

Andrea Vacondio

Constructor Summary

Constructors

Constructor and Description
Xref()

Method Summary

Modifier and Type	Method and Description
XrefEntry	add(XrefEntry entry) Adds the given entry to the Xref replacing any entry previously associated to the given object number and generation.
XrefEntry	addIfAbsent(XrefEntry entry) Adds the given entry to the Xref if an entry with the given object number and generation is not already present.
boolean	contains(COSObjectKey objectKey)
XrefEntry	get(COSObjectKey objectKey)
COSObjectKey	highestKey()
Collection<XrefEntry>	values()

Methods inherited from class java.lang.Object

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

Constructor Detail

Xref

public Xref()

Method Detail

addIfAbsent

public XrefEntry addIfAbsent(XrefEntry entry)

Adds the given entry to the Xref if an entry with the given object number and generation is not already present.

Parameters:

entry -

Returns:

null if the entry was added. The current entry with the given object number and generation if the entry was already present.

add

public XrefEntry add(XrefEntry entry)

Adds the given entry to the Xref replacing any entry previously associated to the given object number and generation.

Parameters:

entry -

Returns:

the previous value or null if no entry was previously associated to the given object number and generation.

get

public XrefEntry get(COSObjectKey objectKey)

Parameters:

objectKey -

Returns:

the XrefEntry for with the given object Number and generation number or null if nothing is found

values

public Collection<XrefEntry> values()

Returns:

an unmodifiable view of the entries in this xref

highestKey

public COSObjectKey highestKey()

Returns:

the highest key in this xref

contains

public boolean contains(COSObjectKey objectKey)

Parameters:

objectKey -

Returns:

true if a value for the given key is registered to this xref