itextpdf.jar is a component in iText 5 Java library to provide core functionalities. iText Java library allows you to generate and manage PDF documents.

The Source Code files are provided at iText GitHub site.

You can compile it to generate your JAR file, using pom.xml as the build configuration file.

The source code of itextpdf-5.5.14.jar is provided below:

⏎ com/itextpdf/xmp/XMPIterator.java

//Copyright (c) 2006, Adobe Systems Incorporated
//All rights reserved.
//
//        Redistribution and use in source and binary forms, with or without
//        modification, are permitted provided that the following conditions are met:
//        1. Redistributions of source code must retain the above copyright
//        notice, this list of conditions and the following disclaimer.
//        2. Redistributions in binary form must reproduce the above copyright
//        notice, this list of conditions and the following disclaimer in the
//        documentation and/or other materials provided with the distribution.
//        3. All advertising materials mentioning features or use of this software
//        must display the following acknowledgement:
//        This product includes software developed by the Adobe Systems Incorporated.
//        4. Neither the name of the Adobe Systems Incorporated nor the
//        names of its contributors may be used to endorse or promote products
//        derived from this software without specific prior written permission.
//
//        THIS SOFTWARE IS PROVIDED BY ADOBE SYSTEMS INCORPORATED ''AS IS'' AND ANY
//        EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
//        WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
//        DISCLAIMED. IN NO EVENT SHALL ADOBE SYSTEMS INCORPORATED BE LIABLE FOR ANY
//        DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
//        (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//        LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
//        ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
//        (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
//        SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//        http://www.adobe.com/devnet/xmp/library/eula-xmp-library-java.html

package com.itextpdf.xmp;

import java.util.Iterator;


/**
 * Interface for the <code>XMPMeta</code> iteration services.
 * <code>XMPIterator</code> provides a uniform means to iterate over the
 * schema and properties within an XMP object.
 * <p>
 * The iteration over the schema and properties within an XMP object is very
 * complex. It is helpful to have a thorough understanding of the XMP data tree.
 * One way to learn this is to create some complex XMP and examine the output of
 * <code>XMPMeta#toString</code>. This is also described in the XMP
 * Specification, in the XMP Data Model chapter.
 * <p>
 * The top of the XMP data tree is a single root node. This does not explicitly
 * appear in the dump and is never visited by an iterator (that is, it is never
 * returned from <code>XMPIterator#next()</code>). Beneath the root are
 * schema nodes. These are just collectors for top level properties in the same
 * namespace. They are created and destroyed implicitly. Beneath the schema
 * nodes are the property nodes. The nodes below a property node depend on its
 * type (simple, struct, or array) and whether it has qualifiers.
 * <p>
 * An <code>XMPIterator</code> is created by XMPMeta#interator() constructor
 * defines a starting point for the iteration and options that control how it
 * proceeds. By default the iteration starts at the root and visits all nodes
 * beneath it in a depth first manner. The root node is not visited, the first
 * visited node is a schema node. You can provide a schema name or property path
 * to select a different starting node. By default this visits the named root
 * node first then all nodes beneath it in a depth first manner.
 * <p>
 * The <code>XMPIterator#next()</code> method delivers the schema URI, path,
 * and option flags for the node being visited. If the node is simple it also
 * delivers the value. Qualifiers for this node are visited next. The fields of
 * a struct or items of an array are visited after the qualifiers of the parent.
 * <p>
 * The options to control the iteration are:
 * <ul>
 * <li>JUST_CHILDREN - Visit just the immediate children of the root. Skip
 * the root itself and all nodes below the immediate children. This omits the
 * qualifiers of the immediate children, the qualifier nodes being below what
 * they qualify, default is to visit the complete subtree.
 * <li>JUST_LEAFNODES - Visit just the leaf property nodes and their
 * qualifiers.
 * <li>JUST_LEAFNAME - Return just the leaf component of the node names.
 * The default is to return the full xmp path.
 * <li>OMIT_QUALIFIERS - Do not visit the qualifiers.
 * <li>INCLUDE_ALIASES - Adds known alias properties to the properties in the iteration.
 * 		<em>Note:</em> Not supported in Java XMPCore! 
 * </ul>
 * <p>
 * <code>next()</code> returns <code>XMPPropertyInfo</code>-objects and throws
 * a <code>NoSuchElementException</code> if there are no more properties to
 * return.
 * 
 * @since 25.01.2006
 */
public interface XMPIterator extends Iterator
{
	/**
	 * Skip the subtree below the current node when <code>next()</code> is
	 * called.
	 */
	void skipSubtree();


	/**
	 * Skip the subtree below and remaining siblings of the current node when
	 * <code>next()</code> is called.
	 */
	void skipSiblings();
}

⏎ com/itextpdf/xmp/XMPIterator.java

Or download all of them as a single archive file:

File name: itextpdf-5.5.14-fyi.zip
File size: 2163839 bytes
Release date: 2009-10-09
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