Coverage report

| %line | %branch
--- | --- | ---
org.apache.commons.jexl.util.ArrayIterator |
75% |
62% |

1 |  |
     /*
2 |  |
      * Copyright 1999-2001,2004 The Apache Software Foundation.
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 |  |
17 |  |
     package org.apache.commons.jexl.util;
18 |  |
19 |  |
20 |  |
21 |  |
     import java.util.Iterator;
22 |  |
     import java.util.NoSuchElementException;
23 |  |
     import java.lang.reflect.Array;
24 |  |
25 |  |
26 |  |
     /**
27 |  |
      *  <p>
28 |  |
      *  An Iterator wrapper for an Object[]. This will
29 |  |
      *  allow us to deal with all array like structures
30 |  |
      *  in a consistent manner.
31 |  |
      *  </p>
32 |  |
      *  <p>
33 |  |
      *  WARNING : this class's operations are NOT synchronized.
34 |  |
      *  It is meant to be used in a single thread, newly created
35 |  |
      *  for each use in the #foreach() directive.
36 |  |
      *  If this is used or shared, synchronize in the
37 |  |
      *  next() method.
38 |  |
      *  </p>
39 |  |
      *
40 |  |
      * @since 1.0
41 |  |
      * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a>
42 |  |
      * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
43 |  |
      * @version $Id: ArrayIterator.java 398329 2006-04-30 12:51:43Z dion $
44 |  |
      */
45 |  |
     public class ArrayIterator implements Iterator {
46 |  |
         /**
47 |  |
          * The objects to iterate over.
48 |  |
          */
49 |  |
         private final Object array;
50 |  |
51 |  |
         /**
52 |  |
          * The current position and size in the array.
53 |  |
          */
54 |  |
         private int pos;
55 |  |
56 |  |
         /**
57 |  |
          * The size of the array.
58 |  |
          */
59 |  |
         private final int size;
60 |  |
61 |  |
         /**
62 |  |
          * Creates a new iterator instance for the specified array.
63 |  |
          *
64 |  |
          * @param arr The array for which an iterator is desired.
65 |  |
          */
66 | 2 |
         public ArrayIterator(Object arr) {
67 |  |
             /*
68 |  |
              * if this isn't an array, then throw.  Note that this is
69 |  |
              * for internal use - so this should never happen - if it does
70 |  |
              *  we screwed up.
71 |  |
              */
72 |  |
73 | 2 |
             if (!arr.getClass().isArray()) {
74 | 0 |
                 throw new IllegalArgumentException("Programmer error :"
75 |  |
                           + " internal ArrayIterator invoked w/o array");
76 |  |
             }
77 |  |
78 | 2 |
             array = arr;
79 | 2 |
             pos = 0;
80 | 2 |
             size = Array.getLength(array);
81 | 2 |
         }
82 |  |
83 |  |
         /**
84 |  |
          * Move to next element in the array.
85 |  |
          *
86 |  |
          * @return The next object in the array.
87 |  |
          */
88 |  |
         public Object next() {
89 | 4 |
             if (pos < size) {
90 | 4 |
                 return Array.get(array, pos++);
91 |  |
             }
92 |  |
93 |  |
             /*
94 |  |
              *  we screwed up...
95 |  |
              */
96 |  |
97 | 0 |
             throw new NoSuchElementException("No more elements: " + pos
98 |  |
                                              + " / " + size);
99 |  |
         }
100 |  |
101 |  |
         /**
102 |  |
          * Check to see if there is another element in the array.
103 |  |
          *
104 |  |
          * @return Whether there is another element.
105 |  |
          */
106 |  |
         public boolean hasNext() {
107 | 6 |
             return (pos < size);
108 |  |
         }
109 |  |
110 |  |
         /**
111 |  |
          * No op--merely added to satify the <code>Iterator</code> interface.
112 |  |
          */
113 |  |
         public void remove() {
114 | 0 |
             throw new UnsupportedOperationException();
115 |  |
         }
116 |  |
     }

This report is generated by jcoverage, Maven and Maven JCoverage Plugin.