AbstractBridgeList


1   /*
2   
3   This software is OSI Certified Open Source Software.
4   OSI Certified is a certification mark of the Open Source Initiative.
5   
6   The license (Mozilla version 1.0) can be read at the MMBase site.
7   See http://www.MMBase.org/license
8   
9   */
10  
11  package org.mmbase.bridge.util;
12  
13  import org.mmbase.bridge.*;
14  import java.util.*;
15  
16  /**
17   * As AbstractList, but implements some extra methods required by BridgeList
18   *
19   *
20   * @author  Michiel Meeuwissen
21   * @version $Id: AbstractBridgeList.java,v 1.1 2005/12/29 22:08:25 michiel Exp $
22   * @since   MMBase-1.8
23   */
24  
25  abstract public class AbstractBridgeList extends AbstractList implements BridgeList {
26  
27      private Map properties = new HashMap();
28  
29      // javadoc inherited
30      public Object   getProperty(Object   key) {
31          return properties.get(key);
32      }
33  
34      // javadoc inherited
35      public void setProperty(Object   key, Object   value) {
36          properties.put(key, value);
37      }
38  
39      // javadoc inherited
40      public void sort() {
41          Collections.sort(this);
42      }
43  
44      // javadoc inherited
45      public void sort(Comparator comparator) {
46          Collections.sort(this, comparator);
47      }
48  
49      protected class BasicIterator implements ListIterator {
50          protected ListIterator iterator;
51  
52          protected BasicIterator() {
53              this.iterator = AbstractBridgeList.this.listIterator();
54          }
55  
56          public boolean hasNext() {
57              return  iterator.hasNext();
58          }
59  
60          public boolean hasPrevious() {
61              return  iterator.hasPrevious();
62          }
63  
64          public int nextIndex() {
65              return iterator.nextIndex();
66          }
67  
68          public int previousIndex() {
69              return iterator.previousIndex();
70          }
71  
72          public void remove() {
73              iterator.remove();
74          }
75  
76          // These have to be implemented with a check if o is of the right type.
77          public void set(Object   o) {
78              iterator.set(o);
79          }
80  
81          public void add(Object   o) {
82              iterator.add(o);
83          }
84  
85          public Object   next() {
86              return iterator.next();
87          }
88          public Object   previous() {
89              return iterator.previous();
90          }
91  
92      }
93  
94  
95  }
96
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