de.intarsys.pdf.cos
Class COSBoolean

java.lang.Object
  de.intarsys.pdf.cos.COSDocumentElement
      de.intarsys.pdf.cos.COSObject
          de.intarsys.pdf.cos.COSPrimitiveObject
              de.intarsys.pdf.cos.COSBoolean

All Implemented Interfaces:

ICOSExceptionHandler, de.intarsys.tools.component.ISaveStateSupport

Direct Known Subclasses:

COSFalse, COSTrue

public abstract class COSBoolean
extends COSPrimitiveObject

Abstract class for the representation of boolean values

Field Summary

static COSBoolean	FALSE
static COSBoolean	TRUE

Fields inherited from class de.intarsys.pdf.cos.COSObject

CONSTANT_CONTAINER, NULL_CONTAINER, SLOT_CONTAINER

Method Summary

Object	accept(ICOSObjectVisitor visitor) Accept a visitor object.
COSBoolean	asBoolean()
abstract boolean	booleanValue() The boolean value for this.
static COSBoolean	create(boolean value)

Methods inherited from class de.intarsys.pdf.cos.COSPrimitiveObject

addObjectListener, basicIterator, copyDeep, copyDeep, isDangling, isObjectListenerAvailable, isPrimitive, iterator, removeObjectListener

Methods inherited from class de.intarsys.pdf.cos.COSObject

asArray, asDictionary, asFixed, asInteger, asName, asNull, asNumber, asStream, asString, beConstant, beIndirect, containable, copyOptional, copyShallow, copySubGraph, dereference, getContainer, getDoc, getIndirectObject, isIndirect, isNull, isNumber, isSwapped, restoreState, stringValue, toString

Methods inherited from class de.intarsys.pdf.cos.COSDocumentElement

handleException, isReference

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface de.intarsys.tools.component.ISaveStateSupport

saveState

Field Detail

TRUE

public static final COSBoolean TRUE

FALSE

public static final COSBoolean FALSE

Method Detail

create

public static COSBoolean create(boolean value)

accept

public Object accept(ICOSObjectVisitor visitor)
              throws COSVisitorException

Description copied from class: COSDocumentElement

Accept a visitor object. The receiver selects the correct implementation in the visitor by "double dispatching".

Specified by:

accept in class COSDocumentElement

Parameters:

visitor - The object visiting the receiver.

Returns:

Object An object depending on the visitor semantics.

Throws:

COSVisitorException - An exception depending on the visitor semantics.

booleanValue

public abstract boolean booleanValue()

The boolean value for this.

Returns:

The boolean value for this.

asBoolean

public COSBoolean asBoolean()

Overrides:

asBoolean in class COSObject

Returns:

a COSBoolean or null