Java Doc for PDFXref.java in  » PDF » PDF-Renderer » com » sun » pdfview » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » PDF » PDF Renderer » com.sun.pdfview 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   com.sun.pdfview.PDFXref

PDFXref
public class PDFXref (Code)
a cross reference representing a line in the PDF cross referencing table.

There are two forms of the PDFXref, destinguished by absolutely nothing. The first type of PDFXref is used as indirect references in a PDFObject. In this type, the id is an index number into the object cross reference table. The id will range from 0 to the size of the cross reference table.

The second form is used in the Java representation of the cross reference table. In this form, the id is the file position of the start of the object in the PDF file. See the use of both of these in the PDFFile.dereference() method, which takes a PDFXref of the first form, and uses (internally) a PDFXref of the second form.

This is an unhappy state of affairs, and should be fixed. Fortunatly, the two uses have already been factored out as two different methods.
author:
   Mike Wessler




Constructor Summary
public  PDFXref(int id, int gen)
     create a new PDFXref, given a parsed id and generation.
public  PDFXref(byte[] line)
    

Method Summary
public  intgetFilePos()
    
public  intgetGeneration()
    
public  intgetID()
    
public  PDFObjectgetObject()
     Get the object this reference refers to, or null if it hasn't been set.
public  voidsetObject(PDFObject obj)
     Set the object this reference refers to.


Constructor Detail
PDFXref
public PDFXref(int id, int gen)(Code)
create a new PDFXref, given a parsed id and generation.



PDFXref
public PDFXref(byte[] line)(Code)
create a new PDFXref, given a sequence of bytes representing the fixed-width cross reference table line




Method Detail
getFilePos
public int getFilePos()(Code)
get the character index into the file of the start of this object



getGeneration
public int getGeneration()(Code)
get the generation of this object



getID
public int getID()(Code)
get the object number of this object



getObject
public PDFObject getObject()(Code)
Get the object this reference refers to, or null if it hasn't been set. the object if it exists, or null if not



setObject
public void setObject(PDFObject obj)(Code)
Set the object this reference refers to.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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