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iText, a free Java-PDF library
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/*
 * $Id: PRIndirectReference.java 2366 2006-09-14 23:10:58Z xlv $
 * $Name$
 *
 * Copyright 2001, 2002 by Paulo Soares.
 *
 * The contents of this file are subject to the Mozilla Public License Version 1.1
 * (the "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the License.
 *
 * The Original Code is 'iText, a free JAVA-PDF library'.
 *
 * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
 * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
 * All Rights Reserved.
 * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
 * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
 *
 * Contributor(s): all the names of the contributors are added in the source code
 * where applicable.
 *
 * Alternatively, the contents of this file may be used under the terms of the
 * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
 * provisions of LGPL are applicable instead of those above.  If you wish to
 * allow use of your version of this file only under the terms of the LGPL
 * License and not to allow others to use your version of this file under
 * the MPL, indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by the LGPL.
 * If you do not delete the provisions above, a recipient may use your version
 * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the MPL as stated above or under the terms of the GNU
 * Library General Public License as published by the Free Software Foundation;
 * either version 2 of the License, or any later version.
 *
 * This library 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 Library general Public License for more
 * details.
 *
 * If you didn't download this code from the following link, you should check if
 * you aren't using an obsolete version:
 * http://www.lowagie.com/iText/
 */

package com.lowagie.text.pdf;
import java.io.IOException;
import java.io.OutputStream;

public class PRIndirectReference extends PdfIndirectReference {
    
    protected PdfReader reader;
    // membervariables
    
    // constructors
    
/**
 * Constructs a PdfIndirectReference.
 *
 * @param		reader			a PdfReader
 * @param		number			the object number.
 * @param		generation		the generation number.
 */
    
    PRIndirectReference(PdfReader reader, int number, int generation) {
        type = INDIRECT;
        this.number = number;
        this.generation = generation;
        this.reader = reader;
    }
    
/**
 * Constructs a PdfIndirectReference.
 *
 * @param		reader			a PdfReader
 * @param		number			the object number.
 */
    
    PRIndirectReference(PdfReader reader, int number) {
        this(reader, number, 0);
    }
    
    // methods
    
    public void toPdf(PdfWriter writer, OutputStream os) throws IOException {
        int n = writer.getNewObjectNumber(reader, number, generation);
        os.write(PdfEncodings.convertToBytes(new StringBuffer().append(n).append(" 0 R").toString(), null));
    }

    public PdfReader getReader() {
        return reader;
    }
    
    public void setNumber(int number, int generation) {
        this.number = number;
        this.generation = generation;
    }
}