Class TreeNodeFactory

java.lang.Object

org.openpdf.rups.model.TreeNodeFactory

public class TreeNodeFactory
extends Object

A factory that creates TreeNode objects corresponding with PDF objects.

Field Summary

Fields

Modifier and Type	Field	Description
protected ArrayList<PdfObjectTreeNode>	nodes	An list containing the nodes of every indirect object.
protected IndirectObjectFactory	objects	The factory that can produce all indirect objects.

Constructor Summary

Constructors

Constructor	Description
TreeNodeFactory(IndirectObjectFactory objects)	Creates a factory that can produce TreeNode objects corresponding with PDF objects.

Method Summary

Modifier and Type	Method	Description
void	expandNode(PdfObjectTreeNode node)	Creates the Child TreeNode objects for a PDF object TreeNode.
PdfObjectTreeNode	getChildNode(PdfObjectTreeNode node, PdfName key)	Finds a specific child of dictionary node.
PdfObjectTreeNode	getNode(int ref)	Gets a TreeNode for an indirect objects.

Methods inherited from class Object

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

Field Details

objects

protected IndirectObjectFactory objects

The factory that can produce all indirect objects.

nodes

protected ArrayList<PdfObjectTreeNode> nodes

An list containing the nodes of every indirect object.

Constructor Details

TreeNodeFactory

public TreeNodeFactory(IndirectObjectFactory objects)

Creates a factory that can produce TreeNode objects corresponding with PDF objects.

Parameters:

objects - a factory that can produce all the indirect objects of a PDF file.

Method Details

getNode

public PdfObjectTreeNode getNode(int ref)

Gets a TreeNode for an indirect objects.

Parameters:

ref - the reference number of the indirect object.

Returns:

the TreeNode representing the PDF object

expandNode

public void expandNode(PdfObjectTreeNode node)

Creates the Child TreeNode objects for a PDF object TreeNode.

Parameters:

node - the parent node

getChildNode

public PdfObjectTreeNode getChildNode(PdfObjectTreeNode node,
 PdfName key)

Finds a specific child of dictionary node.

Parameters:

node - the node with a dictionary among its children

key - the key of the item corresponding with the node we need

Returns:

the PdfObjectTreeNode that is the child of the dictionary node