Package org.apache.pdfbox.pdfparser.xref

Class FreeXReference

java.lang.Object

org.apache.pdfbox.pdfparser.xref.AbstractXReference

org.apache.pdfbox.pdfparser.xref.FreeXReference

All Implemented Interfaces:

java.lang.Comparable<XReferenceEntry>, XReferenceEntry

public class FreeXReference
extends AbstractXReference

A class representing a free reference in a PDF's crossreference stream (PDFXRefStream).

Field Summary

Fields

Modifier and Type	Field	Description
private COSObjectKey	key
private long	nextFreeObject
static FreeXReference	NULL_ENTRY

Constructor Summary

Constructors

Constructor	Description
FreeXReference(COSObjectKey key, long nextFreeObject)	Sets the given COSObjectKey as a free reference in a PDF's crossreference stream (PDFXRefStream).

Method Summary

Modifier and Type	Method	Description
COSObjectKey	getReferencedKey()	Returns the COSObjectKey of the object, that is described by this crossreference stream entry.
long	getSecondColumnValue()	Returns the value for the second column of the crossreference stream entry.
long	getThirdColumnValue()	Returns the value for the third column of the crossreference stream entry.
java.lang.String	toString()	Returns a string representation of this crossreference stream entry.

Methods inherited from class org.apache.pdfbox.pdfparser.xref.AbstractXReference

compareTo, getFirstColumnValue, getType

Methods inherited from class java.lang.Object

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

Field Detail

NULL_ENTRY

public static final FreeXReference NULL_ENTRY

key

private final COSObjectKey key

nextFreeObject

private final long nextFreeObject

Constructor Detail

FreeXReference

public FreeXReference(COSObjectKey key,
                      long nextFreeObject)

Sets the given COSObjectKey as a free reference in a PDF's crossreference stream (PDFXRefStream).

Parameters:

key - The key, that shall be set as the free reference of the document.

nextFreeObject - The object number of the next free object.

Method Detail

getReferencedKey

public COSObjectKey getReferencedKey()

Returns the COSObjectKey of the object, that is described by this crossreference stream entry.

Returns:

The COSObjectKey of the object, that is described by this crossreference stream entry.

getSecondColumnValue

public long getSecondColumnValue()

Returns the value for the second column of the crossreference stream entry. (This is the object number of the set next free COSObjectKey - for entries of this type.)

Returns:

The value for the second column of the crossreference stream entry.

getThirdColumnValue

public long getThirdColumnValue()

Returns the value for the third column of the crossreference stream entry. (This is the generation number of the set next free COSObjectKey - for entries of this type.)

Returns:

The value for the third column of the crossreference stream entry.

toString

public java.lang.String toString()

Returns a string representation of this crossreference stream entry.

Overrides:

toString in class java.lang.Object

Returns:

A string representation of this crossreference stream entry.