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
022package org.biojava.bio.seq.io;
023
024import org.biojava.bio.seq.Feature;
025import org.biojava.bio.symbol.Alphabet;
026import org.biojava.bio.symbol.IllegalAlphabetException;
027import org.biojava.bio.symbol.Symbol;
028
029/**
030 * Base-class for listeners that pass filtered events onto another listener.
031 *
032 * @author Matthew Pocock
033 * @since 1.1
034 * @see org.biojavax.bio.seq.io.RichSeqIOAdapter
035 */
036public class SeqIOFilter implements SeqIOListener {
037  /**
038   * Delegate that will recieve all of the forwarded event.
039   */
040  private SeqIOListener delegate;
041  
042  /**
043   * Create a new SeqIOFilter that will forward events on to another listener.
044   *
045   * @param delegate  the SeqIOListener to wrap
046   */
047  public SeqIOFilter(SeqIOListener delegate) {
048    this.delegate = delegate;
049  }
050  
051  /**
052   * Retrieve the delegate that is wrapped.
053   *
054   * @return the SeqIOListener delegate
055   */
056  public SeqIOListener getDelegate() {
057    return delegate;
058  }
059  
060  public void startSequence() throws ParseException {
061    delegate.startSequence();
062  }
063  
064  public void endSequence() throws ParseException {
065    delegate.endSequence();
066  }
067  
068  public void setName(String name) throws ParseException {
069    delegate.setName(name);
070  }
071  
072  public void setURI(String uri) throws ParseException {
073    delegate.setURI(uri);
074  }
075  
076  public void addSymbols(Alphabet alpha, Symbol[] syms, int start, int length)
077  throws IllegalAlphabetException {
078    delegate.addSymbols(alpha, syms, start, length);
079  }
080  
081  public void addSequenceProperty(Object key, Object value) throws ParseException {
082    delegate.addSequenceProperty(key, value);
083  }
084  
085  public void startFeature(Feature.Template templ) throws ParseException {
086    delegate.startFeature(templ);
087  }
088  
089  public void endFeature() throws ParseException {
090    delegate.endFeature();
091  }
092  
093  public void addFeatureProperty(Object key, Object value) throws ParseException {
094    delegate.addFeatureProperty(key, value);
095  }
096}