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1   /*
2    * Copyright 2004-2005 the original author or authors.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5    * use this file except in compliance with the License. You may obtain a copy of
6    * 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, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations under
14   * the License.
15   */
16  package net.sf.morph.reflect.reflectors;
17  
18  import java.util.Collection;
19  import java.util.Iterator;
20  import java.util.SortedSet;
21  import java.util.TreeSet;
22  
23  import net.sf.morph.reflect.BeanReflector;
24  import net.sf.morph.reflect.IndexedContainerReflector;
25  
26  /**
27   * Exposes the information found in a {@link java.util.SortedSet}.
28   * 
29   * @author Matt Sgarlata
30   * @since Nov 26, 2004
31   */
32  public class SortedSetReflector
33  	extends SetReflector
34  	implements IndexedContainerReflector, BeanReflector {
35  
36  	private static final Class[] REFLECTABLE_TYPES = new Class[] {
37  		SortedSet.class
38  	};
39  
40  	protected Object newInstanceImpl(Class interfaceClass, Object parameters) throws Exception {
41  		return interfaceClass == SortedSet.class ? new TreeSet() : super.newInstanceImpl(interfaceClass, parameters);
42  	}
43  
44  	public Class[] getReflectableClassesImpl() {
45  		return REFLECTABLE_TYPES;
46  	}
47  
48  	protected Object getImpl(Object container, int index) throws Exception {
49  		Collection c = getCollection(container);
50  		if (c == null || c.size() <= index) {
51  			throw new IndexOutOfBoundsException(Integer.toString(index));
52  		}
53  		Iterator it = c.iterator();
54  		for (int i = 0; i < index && it.hasNext(); i++) {
55  			it.next();
56  		}
57  		return it.next();
58  	}
59  
60  }