Coverage Report - org.acegisecurity.ui.savedrequest.Enumerator
 
Classes in this File Line Coverage Branch Coverage Complexity
Enumerator
0% 
0% 
1.25
 
 1   
 /* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited
 2   
  *
 3   
  * Licensed under the Apache License, Version 2.0 (the "License");
 4   
  * you may not use this file except in compliance with the License.
 5   
  * You may obtain a copy of the License at
 6   
  *
 7   
  *     http://www.apache.org/licenses/LICENSE-2.0
 8   
  *
 9   
  * Unless required by applicable law or agreed to in writing, software
 10   
  * distributed under the License is distributed on an "AS IS" BASIS,
 11   
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12   
  * See the License for the specific language governing permissions and
 13   
  * limitations under the License.
 14   
  */
 15   
 
 16   
 package org.acegisecurity.ui.savedrequest;
 17   
 
 18   
 import java.util.ArrayList;
 19   
 import java.util.Collection;
 20   
 import java.util.Enumeration;
 21   
 import java.util.Iterator;
 22   
 import java.util.List;
 23   
 import java.util.Map;
 24   
 import java.util.NoSuchElementException;
 25   
 
 26   
 
 27   
 /**
 28   
  * <p>Adapter that wraps an <code>Enumeration</code> around a Java 2 collection <code>Iterator</code>.</p>
 29   
  * <p>Constructors are provided to easily create such wrappers.</p>
 30   
  * <p>This class is based on code in Apache Tomcat.</p>
 31   
  *
 32   
  * @author Craig McClanahan
 33   
  * @author Andrey Grebnev
 34   
  * @version $Id: Enumerator.java 1784 2007-02-24 21:00:24Z luke_t $
 35   
  */
 36   
 public class Enumerator implements Enumeration {
 37   
     //~ Instance fields ================================================================================================
 38   
 
 39   
     /**
 40   
      * The <code>Iterator</code> over which the <code>Enumeration</code> represented by this class actually operates.
 41   
      */
 42  0 
     private Iterator iterator = null;
 43   
 
 44   
     //~ Constructors ===================================================================================================
 45   
 
 46   
 /**
 47   
      * Return an Enumeration over the values of the specified Collection.
 48   
      *
 49   
      * @param collection Collection whose values should be enumerated
 50   
      */
 51   
     public Enumerator(Collection collection) {
 52  0 
         this(collection.iterator());
 53  0 
     }
 54   
 
 55   
 /**
 56   
      * Return an Enumeration over the values of the specified Collection.
 57   
      *
 58   
      * @param collection Collection whose values should be enumerated
 59   
      * @param clone true to clone iterator
 60   
      */
 61   
     public Enumerator(Collection collection, boolean clone) {
 62  0 
         this(collection.iterator(), clone);
 63  0 
     }
 64   
 
 65   
 /**
 66   
      * Return an Enumeration over the values returned by the specified
 67   
      * Iterator.
 68   
      *
 69   
      * @param iterator Iterator to be wrapped
 70   
      */
 71   
     public Enumerator(Iterator iterator) {
 72  0 
         super();
 73  0 
         this.iterator = iterator;
 74  0 
     }
 75   
 
 76   
 /**
 77   
      * Return an Enumeration over the values returned by the specified
 78   
      * Iterator.
 79   
      *
 80   
      * @param iterator Iterator to be wrapped
 81   
      * @param clone true to clone iterator
 82   
      */
 83   
     public Enumerator(Iterator iterator, boolean clone) {
 84  0 
         super();
 85   
 
 86  0 
         if (!clone) {
 87  0 
             this.iterator = iterator;
 88   
         } else {
 89  0 
             List list = new ArrayList();
 90   
 
 91  0 
             while (iterator.hasNext()) {
 92  0 
                 list.add(iterator.next());
 93   
             }
 94   
 
 95  0 
             this.iterator = list.iterator();
 96   
         }
 97  0 
     }
 98   
 
 99   
 /**
 100   
      * Return an Enumeration over the values of the specified Map.
 101   
      *
 102   
      * @param map Map whose values should be enumerated
 103   
      */
 104   
     public Enumerator(Map map) {
 105  0 
         this(map.values().iterator());
 106  0 
     }
 107   
 
 108   
 /**
 109   
      * Return an Enumeration over the values of the specified Map.
 110   
      *
 111   
      * @param map Map whose values should be enumerated
 112   
      * @param clone true to clone iterator
 113   
      */
 114   
     public Enumerator(Map map, boolean clone) {
 115  0 
         this(map.values().iterator(), clone);
 116  0 
     }
 117   
 
 118   
     //~ Methods ========================================================================================================
 119   
 
 120   
     /**
 121   
      * Tests if this enumeration contains more elements.
 122   
      *
 123   
      * @return <code>true</code> if and only if this enumeration object contains at least one more element to provide,
 124   
      *         <code>false</code> otherwise
 125   
      */
 126   
     public boolean hasMoreElements() {
 127  0 
         return (iterator.hasNext());
 128   
     }
 129   
 
 130   
     /**
 131   
      * Returns the next element of this enumeration if this enumeration has at least one more element to
 132   
      * provide.
 133   
      *
 134   
      * @return the next element of this enumeration
 135   
      *
 136   
      * @exception NoSuchElementException if no more elements exist
 137   
      */
 138   
     public Object nextElement() throws NoSuchElementException {
 139  0 
         return (iterator.next());
 140   
     }
 141   
 }
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