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 Message headers.
020     * 
021     * @author Won Chul Doh
022     * @since Jan 30, 2010
023     * 
024     */
025    public final class HeaderKey extends StringKey {
026    
027        protected String headerName;
028    
029            public HeaderKey(String headerName, String pattern) {
030                    super(pattern);
031                    this.headerName = headerName;
032            }
033    
034        public String getHeaderName() {
035                    return headerName;
036            }
037    
038        public boolean equals(Object obj) {
039                    if (!(obj instanceof HeaderKey))
040                            return false;
041                    HeaderKey hk = (HeaderKey) obj;
042                    return hk.headerName.equalsIgnoreCase(headerName) && super.equals(hk);
043            }
044    
045            public int hashCode() {
046                    return headerName.toLowerCase().hashCode() + super.hashCode();
047            }
048    
049            @Override
050            public boolean isComposite() {
051                    return true;
052            }
053    
054    }