001    /**
002     * Copyright (C) 2007-2011, Jens Lehmann
003     *
004     * This file is part of DL-Learner.
005     *
006     * DL-Learner is free software; you can redistribute it and/or modify
007     * it under the terms of the GNU General Public License as published by
008     * the Free Software Foundation; either version 3 of the License, or
009     * (at your option) any later version.
010     *
011     * DL-Learner is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014     * GNU General Public License for more details.
015     *
016     * You should have received a copy of the GNU General Public License
017     * along with this program.  If not, see <http://www.gnu.org/licenses/>.
018     */
019    
020    package org.dllearner.utilities.datastructures;
021    
022    /**
023     * A container which can hold two Strings, mainly used as a helper.
024     * Also used as pre form, if you want to create triple, that have the same subject
025     * @author Sebastian Hellmann
026     */
027    public class StringTuple implements Comparable<StringTuple>{
028    
029            public String a;
030            public String b;
031    
032            public StringTuple(String a, String b) {
033                    this.a = a;
034                    this.b = b;
035            }
036    
037            @Override
038            public String toString() {
039                    return "<" + a + "|" + b + ">";
040            }
041    
042            public boolean equals(StringTuple t) {
043                    return ((b.equals(t.b)) && (a.equals(t.a)));
044            }
045            
046            public int compareTo(StringTuple t){
047                    int comp = a.compareTo(t.a);
048                    if( comp == 0 ){
049                            return b.compareTo(t.b);
050                    }else return comp;
051            }
052    
053    }