Package eu.europa.esig.dss.pdf.modifications

Class PdfObjectModificationsFilter

java.lang.Object

eu.europa.esig.dss.pdf.modifications.PdfObjectModificationsFilter

public class PdfObjectModificationsFilter
extends Object

Used to categorize ObjectModifications to four different categories.

Constructor Summary

Constructors

Constructor	Description
PdfObjectModificationsFilter()	Default constructor

Method Summary

Modifier and Type	Method	Description
PdfObjectModifications	filter(Collection<ObjectModification> objectModifications)	Categorizes the given collection of ObjectModifications to various categories and returns PdfObjectModifications containing the result of filtering.
protected boolean	isAnnotationChange(ObjectModification objectModification)	Returns whether the modification corresponds to an annotation change (such as DocTimeStamp or DSS dictionary creation)
protected boolean	isExtensionChange(ObjectModification objectModification)	Returns whether the modification corresponds to a signature augmentation (such as DocTimeStamp or DSS dictionary creation)
protected boolean	isSignatureOrFormFillChange(ObjectModification objectModification)	Returns whether the modification corresponds to a signature addition or a form fill (such as DocTimeStamp or DSS dictionary creation)
protected boolean	skipChange(ObjectModification objectModification)	This method allows to skip some modification occurring in PdfBox and OpenPDF

Methods inherited from class java.lang.Object

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

Constructor Details

PdfObjectModificationsFilter

public PdfObjectModificationsFilter()

Default constructor

Method Details

filter

public PdfObjectModifications filter(Collection<ObjectModification> objectModifications)

Categorizes the given collection of ObjectModifications to various categories and returns PdfObjectModifications containing the result of filtering.

Parameters:

objectModifications - a collection of ObjectModifications to be categorized

Returns:

PdfObjectModifications

skipChange

protected boolean skipChange(ObjectModification objectModification)

This method allows to skip some modification occurring in PdfBox and OpenPDF

Parameters:

objectModification - ObjectModification

Returns:

TRUE if the modification should be skipped, FALSE otherwise

isExtensionChange

protected boolean isExtensionChange(ObjectModification objectModification)

Returns whether the modification corresponds to a signature augmentation (such as DocTimeStamp or DSS dictionary creation)

Parameters:

objectModification - ObjectModification

Returns:

TRUE if the modification corresponds to augmentation process, FALSE otherwise

isSignatureOrFormFillChange

protected boolean isSignatureOrFormFillChange(ObjectModification objectModification)

Returns whether the modification corresponds to a signature addition or a form fill (such as DocTimeStamp or DSS dictionary creation)

Parameters:

objectModification - ObjectModification

Returns:

TRUE if the modification corresponds to a signature addition or a form fill process, FALSE otherwise

isAnnotationChange

protected boolean isAnnotationChange(ObjectModification objectModification)

Returns whether the modification corresponds to an annotation change (such as DocTimeStamp or DSS dictionary creation)

Parameters:

objectModification - ObjectModification

Returns:

TRUE if the modification corresponds to an annotation change process, FALSE otherwise