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 */
021
022
023package org.biojava.bio.program.tagvalue;
024
025import org.biojava.utils.ParserException;
026
027/**
028 * <p>
029 * An abstract TagValueWrapper that does nothing!
030  </p>
031 * <p>
032 * Useful for writing TagValueWrappers which
033 * only act on a subset of the events.
034 * </p>
035 * @author David Huen
036 */
037public class AbstractWrapper
038        implements TagValueWrapper
039{
040        private TagValueListener delegate;
041
042        public void setDelegate(TagValueListener delegate)
043        {
044                this.delegate = delegate;
045        }
046
047        public TagValueListener getDelegate()
048        {
049                return delegate;
050        }
051
052        public void startRecord() throws ParserException {}
053        public void startTag(Object tag) throws ParserException {}
054        public void endTag() throws ParserException {}
055        public void endRecord() throws ParserException {}
056        public void value(TagValueContext ctxt, java.lang.Object value) throws ParserException {}
057}