1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.myfaces.view.facelets.tag.jstl.core;
20
21 import java.io.Serializable;
22 import java.util.ArrayList;
23 import java.util.Iterator;
24 import java.util.List;
25
26 /**
27 * Holds the iteration state generated by c:forEach tag.
28 */
29 public class IterationState implements Serializable
30 {
31 /**
32 * This counter is used to generate an unique base per element
33 * in the collection that will be used later in the id
34 * generation algorithm.
35 */
36 private int counter;
37
38 private List<Object[]> valueList;
39
40 public IterationState()
41 {
42 this.valueList = new ArrayList<Object[]>();
43 }
44
45 /**
46 * @return the valueList
47 */
48 public List<Object[]> getValueList()
49 {
50 return valueList;
51 }
52
53 /**
54 * @param valueList the valueList to set
55 */
56 public void setValueList(List<Object[]> valueList)
57 {
58 this.valueList = valueList;
59 }
60
61 /**
62 * @return the counter
63 */
64 public int getCounter()
65 {
66 return counter;
67 }
68
69 /**
70 * @param counter the counter to set
71 */
72 public void setCounter(int counter)
73 {
74 this.counter = counter;
75 }
76
77 public Iterator getIterator()
78 {
79 return new IteratorWrapper(valueList.iterator());
80 }
81
82 private static class IteratorWrapper implements Iterator
83 {
84 private Iterator<Object[]> delegate;
85
86 public IteratorWrapper(Iterator<Object[]> delegate)
87 {
88 this.delegate = delegate;
89 }
90
91 @Override
92 public boolean hasNext()
93 {
94 return delegate.hasNext();
95 }
96
97 @Override
98 public Object next()
99 {
100 return delegate.next()[1];
101 }
102
103 @Override
104 public void remove()
105 {
106 delegate.remove();
107 }
108 }
109 }