001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/framework/xml/ElementList.java $
002    /*----------------------------------------------------------------------------
003     This file is part of deegree, http://deegree.org/
004     Copyright (C) 2001-2009 by:
005       Department of Geography, University of Bonn
006     and
007       lat/lon GmbH
008    
009     This library is free software; you can redistribute it and/or modify it under
010     the terms of the GNU Lesser General Public License as published by the Free
011     Software Foundation; either version 2.1 of the License, or (at your option)
012     any later version.
013     This library is distributed in the hope that it will be useful, but WITHOUT
014     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
015     FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
016     details.
017     You should have received a copy of the GNU Lesser General Public License
018     along with this library; if not, write to the Free Software Foundation, Inc.,
019     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020    
021     Contact information:
022    
023     lat/lon GmbH
024     Aennchenstr. 19, 53177 Bonn
025     Germany
026     http://lat-lon.de/
027    
028     Department of Geography, University of Bonn
029     Prof. Dr. Klaus Greve
030     Postfach 1147, 53001 Bonn
031     Germany
032     http://www.geographie.uni-bonn.de/deegree/
033    
034     e-mail: info@deegree.org
035    ----------------------------------------------------------------------------*/
036    
037    package org.deegree.framework.xml;
038    
039    import java.util.ArrayList;
040    
041    import org.w3c.dom.Element;
042    
043    /**
044     * Convenience class for easy handling of <code>NodeLists<code> containing only objects of
045     * type org.w3c.dom.Element.
046     *
047     * @author <a href="mailto:mschneider@lat-lon.de">Markus Schneider</a>
048     *
049     * @author last edited by: $Author: mschneider $
050     *
051     * @version 1.0. $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
052     */
053    public class ElementList {
054        /**
055         * The actual elements this list wraps.
056         */
057        ArrayList<Element> elements = new ArrayList<Element>( 100 );
058    
059        /**
060         *
061         * @param element
062         */
063        public void addElement( Element element ) {
064            elements.add( element );
065        }
066    
067        /**
068         *
069         * @return size of the list
070         */
071        public int getLength() {
072            return elements.size();
073        }
074    
075        /**
076         *
077         * @param i
078         * @return i-th element or <code>null</code> if i is out of the list bounds
079         */
080        public Element item( int i ) {
081            if ( i < 0 || i > elements.size() - 1 )
082                return null;
083            return elements.get( i );
084        }
085    }