001    /*
002     * Copyright 2010 the original author or authors.
003     * 
004     *  Licensed under the Apache License, Version 2.0 (the "License");
005     *  you may not use this file except in compliance with the License.
006     *  You may obtain a copy of the License at
007     *
008     *      http://www.apache.org/licenses/LICENSE-2.0
009     *
010     *  Unless required by applicable law or agreed to in writing, software
011     *  distributed under the License is distributed on an "AS IS" BASIS,
012     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     *  See the License for the specific language governing permissions and
014     *  limitations under the License.
015     */
016    package com.hs.mail.imap.message.search;
017    
018    import java.util.Date;
019    
020    /**
021     * This class implements search-criteria for Dates.
022     * 
023     * @author Won Chul Doh
024     * @since Jan 30, 2010
025     * 
026     */
027    public abstract class DateKey extends ComparisonKey {
028    
029            protected Date date;
030    
031            protected DateKey(int comparison, Date date) {
032                    super(comparison);
033                    this.date = date;
034            }
035    
036            public Date getDate() {
037                    return new Date(date.getTime());
038            }
039    
040            public boolean equals(Object obj) {
041                    if (!(obj instanceof DateKey))
042                            return false;
043                    DateKey dk = (DateKey) obj;
044                    return dk.date.equals(this.date) && super.equals(obj);
045            }
046    
047            public int hashCode() {
048                    return date.hashCode() + super.hashCode();
049            }
050    
051    }