1 package org.apache.commons.ognl;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.lang.reflect.Array;
23 import java.util.Enumeration;
24
25 /**
26 * Implementation of ElementsAccessor that returns an iterator over a Java array.
27 *
28 * @author Luke Blanshard (blanshlu@netscape.net)
29 * @author Drew Davidson (drew@ognl.org)
30 */
31 public class ArrayElementsAccessor
32 implements ElementsAccessor
33 {
34 /**
35 * {@inheritDoc}
36 */
37 public Enumeration<?> getElements( final Object target )
38 {
39 return new Enumeration<Object>()
40 {
41 private int count = Array.getLength( target );
42
43 private int index = 0;
44
45 public boolean hasMoreElements()
46 {
47 return index < count;
48 }
49
50 public Object nextElement()
51 {
52 return Array.get( target, index++ );
53 }
54 };
55 }
56 }