StoredMapEntry


1   /*-
2    * See the file LICENSE for redistribution information.
3    *
4    * Copyright (c) 2000,2006 Oracle.  All rights reserved.
5    *
6    * $Id: StoredMapEntry.java,v 1.16 2006/10/30 21:14:10 bostic Exp $
7    */
8   
9   package com.sleepycat.collections;
10  
11  /**
12   * @author Mark Hayes
13   */
14  final class StoredMapEntry extends MapEntryParameter {
15  
16      private BaseIterator iter;
17      private StoredCollection coll;
18  
19      StoredMapEntry(Object   key,
20                     Object   value,
21                     StoredCollection coll,
22                     BaseIterator iter) {
23  
24          super(key, value);
25          this.coll = coll;
26          this.iter = iter;
27      }
28  
29      public Object   setValue(Object   newValue) {
30  
31          Object   oldValue;
32          if (iter != null && iter.isCurrentData(this)) {
33              oldValue = getValue();
34              iter.set(newValue);
35          } else {
36              if (coll.view.dupsAllowed) {
37                  throw new IllegalStateException  ("May not insert duplicates");
38              }
39              oldValue = coll.put(getKey(), newValue);
40          }
41          setValueInternal(newValue);
42          return oldValue;
43      }
44  }
45

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