001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements.  See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership.  The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the
007     * "License"); you may not use this file except in compliance
008     * with the License.  You may obtain a copy of the License at
009     *
010     *  http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing,
013     * software distributed under the License is distributed on an
014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     * KIND, either express or implied.  See the License for the
016     * specific language governing permissions and limitations
017     * under the License.
018     */
019    
020    package javax.mail.search;
021    
022    /**
023     * Base for comparison terms.
024     *
025     * @version $Rev: 593593 $ $Date: 2007-11-09 12:04:20 -0500 (Fri, 09 Nov 2007) $
026     */
027    public abstract class ComparisonTerm extends SearchTerm {
028        public static final int LE = 1;
029        public static final int LT = 2;
030        public static final int EQ = 3;
031        public static final int NE = 4;
032        public static final int GT = 5;
033        public static final int GE = 6;
034    
035        protected int comparison;
036    
037        public ComparisonTerm() {
038        }
039    
040        public boolean equals(Object other) {
041            if (!(other instanceof ComparisonTerm)) {
042                return false; 
043            }
044            return comparison == ((ComparisonTerm)other).comparison;
045        }
046    
047        public int hashCode() {
048            return comparison; 
049        }
050    }