com.itextpdf.pdfoptimizer.util

Class DocumentStructureUtils

java.lang.Object

com.itextpdf.pdfoptimizer.util.DocumentStructureUtils

public final class DocumentStructureUtils
extends Object

Util class for typical tasks across the whole structure of PdfDocument.

Method Summary

Modifier and Type	Method and Description
static List	search(com.itextpdf.kernel.pdf.PdfDocument document, IPdfObjectPredicate predicate) Collects all objects matches the provided predicate.
static void	traverse(com.itextpdf.kernel.pdf.PdfDocument document, IAction action) Goes across all the structure of the document starting from indirect objects definition and then through its children recursively.

Methods inherited from class java.lang.Object

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

Method Detail

search

public static List search(com.itextpdf.kernel.pdf.PdfDocument document,
                                                             IPdfObjectPredicate predicate)

Collects all objects matches the provided predicate.

Parameters:

document - is a PdfDocument to perform a search

predicate - is a IPdfObjectPredicate

Returns:

list of all indirect objects match the predicate

traverse

public static void traverse(com.itextpdf.kernel.pdf.PdfDocument document,
                            IAction action)

Goes across all the structure of the document starting from indirect objects definition and then through its children recursively. Every met indirect object definition is processed by IAction.processIndirectObjectDefinition(PdfObject) and every met object including both types direct and indirect are is processed with IAction.processObject(PdfObject) call. Allows to replace objects during traversing (see IAction.processObject(PdfObject) for details).

Parameters:

document - is a PdfDocument to perform a traversing

action - is an action to perform during traversing