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 org.biojava.bio.BioException;
026
027/**
028 * This exception indicates that there is no transition between two states.
029 *
030 * @author Matthew Pocock
031 */
032public class IllegalTransitionException extends BioException {
033  private State from;
034  private State to;
035  
036  public State getFrom() {
037    return from;
038  }
039    
040  public State getTo() {
041    return to;
042  }
043  
044  public IllegalTransitionException(State from, State to, String message) {
045    super(message + "[" + from.getName() + " -> " + to.getName() + "]");
046    this.from = from;
047    this.to = to;
048  }
049
050  public IllegalTransitionException(State from, State to) {
051    this(from, to, "");
052  }
053  
054  public IllegalTransitionException() {
055    super();
056  }
057}