COSNull

java.lang.Object

org.sejda.sambox.cos.COSBase

org.sejda.sambox.cos.COSNull

All Implemented Interfaces:: COSObjectable

public final class COSNull extends COSBase

This class represents a null PDF object.

Field Summary

Fields

Modifier and Type

Field

Description

static final COSNull

NULL

The one null object in the system.
Constructor Summary

Constructors

Modifier

Constructor

Description

private

COSNull()
Method Summary

Modifier and Type

Method

Description

void

accept(COSVisitor visitor)

Visitor pattern for the COS model objects

void

idIfAbsent(IndirectCOSObjectIdentifier id)

Assign an id to this COSBase if it doesn't have one already.

String

toString()

Methods inherited from class org.sejda.sambox.cos.COSBase
getCOSObject, hasId, id

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details
- NULL
  
  public static final COSNull NULL
  
  The one null object in the system.
Constructor Details
- COSNull
  
  private COSNull()
Method Details
- accept
  
  public void accept(COSVisitor visitor) throws IOException
  
  Description copied from class: COSBase
  
  Visitor pattern for the COS model objects
  
  Specified by:
  
  accept in class COSBase
  
  Throws:
  
  IOException
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Object
- idIfAbsent
  
  public void idIfAbsent(IndirectCOSObjectIdentifier id)
  
  Description copied from class: COSBase
  
  Assign an id to this COSBase if it doesn't have one already.
  
  Overrides:
  
  idIfAbsent in class COSBase