001/**
002 *
003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
004 *
005 * This library is free software; you can redistribute it and/or
006 * modify it under the terms of the GNU Lesser General Public
007 * License as published by the Free Software Foundation; either 
008 * version 2.1 of the License, or (at your option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013 * Lesser General Public License for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public 
016 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
017 * 
018 **/
019package lucee.runtime.search.lucene2.query;
020
021import org.apache.lucene.search.BooleanClause.Occur;
022
023
024public class OccurUtil {
025
026        public static Occur toOccur(boolean required, boolean prohibited) {
027                if(required && !prohibited)             return Occur.MUST;
028                if(!required && !prohibited)    return Occur.SHOULD;
029                if(!required && prohibited)             return Occur.MUST_NOT;
030                throw new RuntimeException("invalid Occur definition (required and prohibited)");
031        }
032
033}