001/* Copyright (C) 2013 TU Dortmund
002 * This file is part of AutomataLib, http://www.automatalib.net/.
003 * 
004 * AutomataLib is free software; you can redistribute it and/or
005 * modify it under the terms of the GNU Lesser General Public
006 * License version 3.0 as published by the Free Software Foundation.
007 * 
008 * AutomataLib is distributed in the hope that it will be useful,
009 * but WITHOUT ANY WARRANTY; without even the implied warranty of
010 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
011 * Lesser General Public License for more details.
012 * 
013 * You should have received a copy of the GNU Lesser General Public
014 * License along with AutomataLib; if not, see
015 * http://www.gnu.de/documents/lgpl.en.html.
016 */
017package net.automatalib.words.abstractimpl;
018
019import java.util.AbstractList;
020
021import net.automatalib.words.Alphabet;
022
023public abstract class AbstractAlphabet<I> extends AbstractList<I> implements Alphabet<I> {
024
025
026        @Override
027        public int compare(I o1, I o2) {
028                return getSymbolIndex(o1) - getSymbolIndex(o2);
029        }
030
031        @Override
032        public I get(int index) {
033                return getSymbol(index);
034        }
035        
036        
037        @Override
038        public void writeToArray(int offset, Object[] array, int tgtOfs, int num) {
039                for(int i = offset, j = tgtOfs, k = 0; k < num; i++, j++, k++) {
040                        array[j] = getSymbol(i);
041                }
042        }
043}