001/*
002 *                    BioJava development code
003 *
004 * This code may be freely distributed and modified under the
005 * terms of the GNU Lesser General Public Licence.  This should
006 * be distributed with the code.  If you do not have a copy,
007 * see:
008 *
009 *      http://www.gnu.org/copyleft/lesser.html
010 *
011 * Copyright for this code is held jointly by the individual
012 * authors.  These should be listed in @author doc comments.
013 *
014 * For more information on the BioJava project and its aims,
015 * or to join the biojava-l mailing list, visit the home page
016 * at:
017 *
018 *      http://www.biojava.org/
019 *
020 */
021package org.biojava.nbio.core.alignment.matrices;
022
023/** Factory class to get Providers for substitution matrices the are provided by the AAINDEX database.
024 *
025 * @author Andreas Prlic
026 *
027 */
028public class AAindexFactory {
029
030
031        private static AAIndexProvider provider = null;
032
033        public static AAIndexProvider getAAIndexProvider() {
034                if ( provider == null)
035                        provider = new DefaultAAIndexProvider();
036                return provider;
037        }
038
039        public static void setAAIndexProvider(AAIndexProvider provider) {
040                AAindexFactory.provider = provider;
041        }
042
043
044
045
046}