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.ArrayList;
019    import java.util.List;
020    
021    /**
022     * This class implements a composite SearchKey composed with multiple
023     * SearchKeys.
024     * 
025     * @author Won Chul Doh
026     * @since Apr 6, 2010
027     * 
028     */
029    public abstract class SearchKeyList extends SearchKey {
030    
031            protected List<SearchKey> keys;
032    
033            public SearchKeyList(List<SearchKey> keys) {
034                    this.keys = keys;
035            }
036    
037            public SearchKeyList() {
038                    this(new ArrayList<SearchKey>());
039            }
040    
041            public void addKey(SearchKey key) {
042                    keys.add(key);
043            }
044            
045            public List<SearchKey> getSearchKeys() {
046                    return keys;
047            }
048            
049            public int size() {
050                    return keys.size();
051            }
052            
053    }