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    /**
019     * This class implements search-criteria for the Message Subject header.
020     * 
021     * @author Won Chul Doh
022     * @since Jan 30, 2010
023     * 
024     */
025    public final class SubjectKey extends StringKey {
026    
027            public SubjectKey(String pattern) {
028                    super(pattern);
029            }
030    
031        public boolean equals(Object obj) {
032                    if (!(obj instanceof SubjectKey))
033                            return false;
034                    return super.equals(obj);
035            }
036    
037            @Override
038            public boolean isComposite() {
039                    return false;
040            }
041    
042    }