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.dp;
024
025import java.io.Serializable;
026
027/**
028 * This is a small and ugly class for storing a trainer and a transition.
029 * <p>
030 * It is hash-code-able, and has a sensible equality operator.
031 *
032 * @author Matthew Pocock
033 */
034public class TrainerTransition implements Serializable {
035  public TransitionTrainer trainer;
036  public State from;
037  public State to;
038  
039  /**
040   * Two transitions are equal if they have the same trainer, from and to states.
041   */
042  public boolean equals(Object o)
043  throws ClassCastException {
044    TrainerTransition t = (TrainerTransition) o;
045    return trainer == t.trainer && from == t.from && to == t.to;
046  }
047  
048  /**
049   * The hash code is model.hashCode() ^ from.hashCode() ^ to.hashCode()
050   */
051  public int hashCode() {
052    return trainer.hashCode() ^ from.hashCode() ^ to.hashCode();
053  }
054  
055  public TrainerTransition(TransitionTrainer trainer, State from, State to) {
056    this.trainer = trainer;
057    this.from = from;
058    this.to = to;
059  }
060}