Package com.itextpdf.kernel.pdf

Class PdfNull

java.lang.Object

com.itextpdf.kernel.pdf.PdfObject

com.itextpdf.kernel.pdf.PdfPrimitiveObject

com.itextpdf.kernel.pdf.PdfNull

 public class PdfNull extends PdfPrimitiveObject 
      

Representation of the null object in the PDF specification.

Field Summary

Fields

Modifier and Type	Field	Description
static final PdfNull	PDF_NULL

Fields inherited from class com.itextpdf.kernel.pdf.PdfPrimitiveObject

content, directOnly

Fields inherited from class com.itextpdf.kernel.pdf.PdfObject

ARRAY, BOOLEAN, DICTIONARY, FLUSHED, FORBID_RELEASE, FREE, INDIRECT_REFERENCE, indirectReference, LITERAL, MODIFIED, MUST_BE_FLUSHED, MUST_BE_INDIRECT, NAME, NULL, NUMBER, ORIGINAL_OBJECT_STREAM, READ_ONLY, READING, STREAM, STRING, UNENCRYPTED

Constructor Summary

Constructors

Constructor	Description
PdfNull()	Creates a PdfNull instance.

Method Summary

Modifier and Type	Method	Description
protected void	copyContent(PdfObject from, PdfDocument document, ICopyFilter copyFilter)	Copies object content from object 'from'.
boolean	equals(Object obj)
protected void	generateContent()
byte	getType()	Gets object type.
int	hashCode()
protected PdfObject	newInstance()	Creates new instance of object.
String	toString()

Methods inherited from class com.itextpdf.kernel.pdf.PdfPrimitiveObject

compareContent, getInternalContent, hasContent, makeIndirect, setIndirectReference

Methods inherited from class com.itextpdf.kernel.pdf.PdfObject

checkState, clearState, clone, clone, copyContent, copyTo, copyTo, copyTo, copyTo, flush, flush, getIndirectReference, isArray, isBoolean, isDictionary, isFlushed, isIndirect, isIndirectReference, isLiteral, isModified, isName, isNull, isNumber, isReleaseForbidden, isStream, isString, makeIndirect, release, setModified, setState

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

PDF_NULL

 public static final PdfNull PDF_NULL 
            

Constructor Details

PdfNull

 public PdfNull() 
            

Creates a PdfNull instance.

Method Details

getType

 public byte getType() 
            

Description copied from class: PdfObject

Gets object type.

Specified by:

getType in class PdfObject

Returns:

object type.

toString

 public String toString() 
            

Overrides:

toString in class Object

generateContent

 protected void generateContent() 
            

Specified by:

generateContent in class PdfPrimitiveObject

newInstance

 protected PdfObject newInstance() 
            

Description copied from class: PdfObject

Creates new instance of object.

Specified by:

newInstance in class PdfObject

Returns:

new instance of object.

copyContent

 protected void copyContent 
             (PdfObject from, PdfDocument document, ICopyFilter copyFilter) 
            

Description copied from class: PdfObject

Copies object content from object 'from'.

Overrides:

copyContent in class PdfPrimitiveObject

Parameters:

from - object to copy content from.

document - document to copy object to.

copyFilter - ICopyFilter a filter that will apply on dictionaries and array Use NullCopyFilter for no filtering

equals

 public boolean equals 
             (Object obj) 
            

Overrides:

equals in class Object

hashCode

 public int hashCode() 
            

Overrides:

hashCode in class Object