001/*
002 * Copyright (c) 2005 Einar Pehrson <einar@pehrson.nu>.
003 *
004 * This file is part of
005 * CleanSheets - a spreadsheet application for the Java platform.
006 *
007 * CleanSheets is free software; you can redistribute it and/or modify
008 * it under the terms of the GNU General Public License as published by
009 * the Free Software Foundation; either version 2 of the License, or
010 * (at your option) any later version.
011 *
012 * CleanSheets is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
015 * GNU General Public License for more details.
016 *
017 * You should have received a copy of the GNU General Public License
018 * along with CleanSheets; if not, write to the Free Software
019 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
020 */
021package csheets.core.formula.lang;
022
023import csheets.core.Value;
024
025/**
026 * A relational less-than operator.
027 * @author Einar Pehrson
028 */
029public class LessThan extends RelationalOperator {
030
031        /** The unique version identifier used for serialization */
032        private static final long serialVersionUID = -2984645567061220967L;
033
034        /**
035         * Creates a new relational less-than operator.
036         */
037        public LessThan() {}
038
039        public <T> boolean compare(Comparable<T> left, T right) {
040                return left.compareTo(right) < 0;
041        }
042
043        public String getIdentifier() {
044                return "<";
045        }
046
047        public Value.Type getOperandValueType() {
048                return Value.Type.NUMERIC;
049        }
050
051        public String toString() {
052                return getIdentifier();
053        }
054}