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1   /*
2    * Copyright 2006-2008 the original author or authors.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.springframework.osgi.service.importer.support.internal.collection;
17  
18  import java.util.Comparator;
19  
20  import org.osgi.framework.BundleContext;
21  import org.osgi.framework.Filter;
22  import org.springframework.osgi.service.importer.support.internal.aop.ServiceProxyCreator;
23  
24  /**
25   * Ordered list similar to a SortedSet with the difference, that it accepts
26   * duplicates.
27   * 
28   * @see Comparable
29   * @see Comparator
30   * @see java.util.SortedSet
31   * 
32   * @author Costin Leau
33   * 
34   */
35  public class OsgiServiceSortedList extends OsgiServiceList {
36  
37  	private final Comparator comparator;
38  
39  	/**
40  	 * @param filter
41  	 * @param context
42  	 * @param classLoader
43  	 */
44  	public OsgiServiceSortedList(Filter filter, BundleContext context, ClassLoader classLoader,
45  			ServiceProxyCreator proxyCreator) {
46  		this(filter, context, classLoader, null, proxyCreator);
47  	}
48  
49  	public OsgiServiceSortedList(Filter filter, BundleContext context, ClassLoader classLoader, Comparator comparator,
50  			ServiceProxyCreator proxyCreator) {
51  		super(filter, context, classLoader, proxyCreator);
52  		this.comparator = comparator;
53  	}
54  
55  	protected DynamicCollection createInternalDynamicStorage() {
56  		storage = new DynamicSortedList(comparator);
57  		return (DynamicCollection) storage;
58  	}
59  
60  	public Comparator comparator() {
61  		return comparator;
62  	}
63  
64  }