/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2022 iText Group NV
 * Authors: Bruno Lowagie, Pavel Alay, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: sales@itextpdf.com
 */
package com.itextpdf.text.pdf;

/**
 * @see PdfName constants for AFRelationship key of Filespec dictionary.
 * An AFRelationship value represents the relationship of this object to the source that points to it. Predefined values are Source, Data, Alternative, Supplement or Unspecified. Other values may be used to represent other types of relationships, but should follow the rules for second-class names (ISO 32000‑1, Annex E).
 */
public final class AFRelationshipValue {
    /**
     * Source shall be used if this file specification is the original source material for the associated content.
     */
    public static final PdfName Source = new PdfName("Source");
    /**
     * Data shall be used if this file specification represents information used to derive a visual presentation, such as for a table or a graph.
     */
    public static final PdfName Data = new PdfName("Data");
    /**
     * Alternative shall be used if this file specification is an alternative representation of content, for example audio.
     */
    public static final PdfName Alternative = new PdfName("Alternative");
    /**
     * Supplement shall be used if this file specification represents a supplemental representation of the original source or data that may be more easily consumable (e.g. A MathML version of an equation).
     * NOTE 1 Supplement is to be used only when the file is not the source or an alternative.
     */
    public static final PdfName Supplement = new PdfName("Supplement");
    /**
     * Unspecified shall be used when the relationship is not known or cannot be described using one of the other values.
     * NOTE 2 Unspecified is to be used only when no other value correctly reflects the relationship.
     */
    public static final PdfName Unspecified = new PdfName("Unspecified");
}
