001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.kernel.search.filter;
016    
017    /**
018     * @author Michael C. Han
019     */
020    public interface FilterVisitor<T> {
021    
022            public T visit(BooleanFilter booleanFilter);
023    
024            public T visit(DateRangeTermFilter dateRangeTermFilter);
025    
026            public T visit(ExistsFilter existsFilter);
027    
028            public T visit(GeoBoundingBoxFilter geoBoundingBoxFilter);
029    
030            public T visit(GeoDistanceFilter geoDistanceFilter);
031    
032            public T visit(GeoDistanceRangeFilter geoDistanceRangeFilter);
033    
034            public T visit(GeoPolygonFilter geoPolygonFilter);
035    
036            public T visit(MissingFilter missingFilter);
037    
038            public T visit(PrefixFilter prefixFilter);
039    
040            public T visit(QueryFilter queryFilter);
041    
042            public T visit(RangeTermFilter rangeTermFilter);
043    
044            public T visit(TermFilter termFilter);
045    
046            public T visit(TermsFilter termsFilter);
047    
048    }