Coverage Report - org.apache.ojb.odmg.collections.DListIterator
 
Classes in this File Line Coverage Branch Coverage Complexity
DListIterator
N/A
N/A
1.273
 
 1  
 package org.apache.ojb.odmg.collections;
 2  
 
 3  
 /* Copyright 2003-2005 The Apache Software Foundation
 4  
  *
 5  
  * Licensed under the Apache License, Version 2.0 (the "License");
 6  
  * you may not use this file except in compliance with the License.
 7  
  * You may obtain a copy of the License at
 8  
  *
 9  
  *     http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License.
 16  
  */
 17  
 
 18  
 import java.util.ListIterator;
 19  
 
 20  
 import org.apache.ojb.odmg.TransactionImpl;
 21  
 import org.apache.ojb.odmg.RuntimeObject;
 22  
 import org.odmg.Transaction;
 23  
 
 24  
 /**
 25  
  * Iterator implementation for {@link org.odmg.DList} implementation.
 26  
  * 
 27  
  * @version $Id: DListIterator.java,v 1.1 2007-08-24 22:17:37 ewestfal Exp $
 28  
  */
 29  
 class DListIterator implements ListIterator
 30  
 {
 31  
     protected ListIterator iter;
 32  
     private DListImpl dlist;
 33  
     private DListEntry currentEntry = null;
 34  
 
 35  
     /**
 36  
      * DListIterator constructor comment.
 37  
      */
 38  
     public DListIterator(DListImpl list)
 39  
     {
 40  
         this.dlist = list;
 41  
         this.iter = list.getElements().listIterator();
 42  
     }
 43  
 
 44  
     /**
 45  
      * DListIterator constructor comment.
 46  
      */
 47  
     public DListIterator(DListImpl list, int index)
 48  
     {
 49  
         this.dlist = list;
 50  
         this.iter = list.getElements().listIterator(index);
 51  
     }
 52  
 
 53  
     /**
 54  
      * @see ListIterator#add(Object)
 55  
      */
 56  
     public void add(Object obj)
 57  
     {
 58  
         DListEntry entry = new DListEntry(this.dlist, obj);
 59  
         entry.setPosition(this.nextIndex() - 1);
 60  
         iter.add(entry);
 61  
 
 62  
         TransactionImpl tx = dlist.getTransaction();
 63  
         if (tx != null)
 64  
         {
 65  
             RuntimeObject rt = new RuntimeObject(entry, tx, true);
 66  
             tx.lockAndRegister(rt, Transaction.WRITE, false, tx.getRegistrationList());
 67  
         }
 68  
     }
 69  
 
 70  
     /**
 71  
      * @see java.util.ListIterator#hasNext()
 72  
      */
 73  
     public boolean hasNext()
 74  
     {
 75  
         return iter.hasNext();
 76  
     }
 77  
 
 78  
     /**
 79  
      * @see java.util.ListIterator#hasPrevious()
 80  
      */
 81  
     public boolean hasPrevious()
 82  
     {
 83  
         return iter.hasPrevious();
 84  
     }
 85  
 
 86  
     /**
 87  
      * @see java.util.ListIterator#next()
 88  
      */
 89  
     public Object next()
 90  
     {
 91  
         currentEntry = ((DListEntry) iter.next());
 92  
         return currentEntry.getRealSubject();
 93  
     }
 94  
 
 95  
     /**
 96  
      * @see java.util.ListIterator#nextIndex()
 97  
      */
 98  
     public int nextIndex()
 99  
     {
 100  
         return iter.nextIndex();
 101  
     }
 102  
 
 103  
     /**
 104  
      * @see java.util.ListIterator#previous()
 105  
      */
 106  
     public Object previous()
 107  
     {
 108  
         currentEntry = ((DListEntry) iter.previous());
 109  
         return currentEntry.getRealSubject();
 110  
     }
 111  
 
 112  
     /**
 113  
      * @see java.util.ListIterator#previousIndex()
 114  
      */
 115  
     public int previousIndex()
 116  
     {
 117  
         return iter.previousIndex();
 118  
     }
 119  
 
 120  
     /**
 121  
      * @see java.util.ListIterator#remove()
 122  
      */
 123  
     public void remove()
 124  
     {
 125  
         iter.remove();
 126  
         TransactionImpl tx = dlist.getTransaction();
 127  
         if (tx != null)
 128  
         {
 129  
             tx.markDelete(currentEntry);
 130  
         }
 131  
         currentEntry = null;
 132  
     }
 133  
 
 134  
     /**
 135  
      * @see ListIterator#set(Object)
 136  
      */
 137  
     public void set(Object o)
 138  
     {
 139  
         throw new UnsupportedOperationException("Method is not supported");
 140  
         // currentEntry.setRealSubject(o);
 141  
     }
 142  
 
 143  
 }