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Java > Open Source Codes > bsh > collection > CollectionManagerImpl


1 /*****************************************************************************
2  * *
3  * This file is part of the BeanShell Java Scripting distribution. *
4  * Documentation and updates may be found at http://www.beanshell.org/ *
5  * *
6  * Sun Public License Notice: *
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8  * The contents of this file are subject to the Sun Public License Version *
9  * 1.0 (the "License"); you may not use this file except in compliance with *
10  * the License. A copy of the License is available at http://www.sun.com *
11  * *
12  * The Original Code is BeanShell. The Initial Developer of the Original *
13  * Code is Pat Niemeyer. Portions created by Pat Niemeyer are Copyright *
14  * (C) 2000. All Rights Reserved. *
15  * *
16  * GNU Public License Notice: *
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18  * Alternatively, the contents of this file may be used under the terms of *
19  * the GNU Lesser General Public License (the "LGPL"), in which case the *
20  * provisions of LGPL are applicable instead of those above. If you wish to *
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28  * Patrick Niemeyer (pat@pat.net) *
29  * Author of Learning Java, O'Reilly & Associates *
30  * http://www.pat.net/~pat/ *
31  * *
32  *****************************************************************************/
33
34 package bsh.collection;
35
36 import java.util.Iterator JavaDoc;
37 import java.util.Collection JavaDoc;
38 import java.util.Enumeration JavaDoc;
39 import java.util.Map JavaDoc;
40 import java.lang.reflect.Array JavaDoc;
41 import bsh.BshIterator;
42
43 /**
44     Dynamically loaded extension supporting post 1.1 collections iterator.
45     @author Pat Niemeyer
46  */
47 public class CollectionManagerImpl extends bsh.CollectionManager
48 {
49     public BshIterator getBshIterator( Object JavaDoc obj )
50         throws IllegalArgumentException JavaDoc
51     {
52         if ( obj instanceof Collection JavaDoc || obj instanceof Iterator JavaDoc )
53             return new CollectionIterator( obj );
54         else
55             return new bsh.CollectionManager.BasicBshIterator( obj );
56     }
57
58     public boolean isMap( Object JavaDoc obj )
59     {
60         if ( obj instanceof Map JavaDoc )
61             return true;
62         else
63             return super.isMap( obj );
64     }
65
66     public Object JavaDoc getFromMap( Object JavaDoc map, Object JavaDoc key )
67     {
68         // Hashtable implements Map
69 return ((Map JavaDoc)map).get(key);
70     }
71     public Object JavaDoc putInMap( Object JavaDoc map, Object JavaDoc key, Object JavaDoc value )
72     {
73         // Hashtable implements Map
74 return ((Map JavaDoc)map).put(key, value);
75     }
76 }
77
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