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Java > Open Source Codes > org > jacorb > collection > SequentialIteratorImpl


1 /*
2  * JacORB - a free Java ORB
3  *
4  * Copyright (C) 1999-2004 Gerald Brose
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Library General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Library General Public License for more details.
15  *
16  * You should have received a copy of the GNU Library General Public
17  * License along with this library; if not, write to the Free
18  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19  *
20  */
21 package org.jacorb.collection;
22
23 import org.omg.CosCollection.*;
24 import org.jacorb.collection.util.*;
25 import java.util.*;
26 import org.omg.PortableServer.POA JavaDoc;
27 import org.omg.PortableServer.Servant JavaDoc;
28 import org.omg.CORBA.Any JavaDoc;
29 import org.omg.CORBA.AnyHolder JavaDoc;
30 import org.omg.CORBA.BooleanHolder JavaDoc;
31
32 class SequentialIteratorImpl extends OrderedIteratorImpl
33                              implements SequentialIteratorOperations {
34
35 /* ========================================================================= */
36     SequentialIteratorImpl( SequentialCollectionImpl collection ){
37         super( collection );
38     }
39 /* ------------------------------------------------------------------------- */
40     SequentialIteratorImpl( SequentialCollectionImpl collection, boolean read_only ){
41         super( collection, read_only );
42     }
43 /* ------------------------------------------------------------------------- */
44     SequentialIteratorImpl( SequentialCollectionImpl collection, boolean read_only, boolean reverse ){
45         super( collection, read_only, reverse );
46     }
47 /* ========================================================================= */
48     public boolean add_element_as_next_set_iterator( Any JavaDoc element ) throws IteratorInvalid,ElementInvalid {
49         synchronized( collection ){
50             check_invalid();
51             try {
52                 ((SequentialCollectionImpl)collection).add_element_at_position( get_pos()+1, element );
53                 set_to_position( get_pos()+1 );
54             } catch ( PositionInvalid e ){
55                 invalidate();
56                 throw new IteratorInvalid( IteratorInvalidReason.is_invalid );
57             }
58             return true;
59         }
60     }
61 /* ------------------------------------------------------------------------- */
62     public void add_n_elements_as_next_set_iterator( Any JavaDoc[] elements ) throws IteratorInvalid,ElementInvalid {
63         throw new org.omg.CORBA.NO_IMPLEMENT JavaDoc();
64 // synchronized( collection ){
65 // }
66 }
67 /* ------------------------------------------------------------------------- */
68     public boolean add_element_as_previous_set_iterator( Any JavaDoc element ) throws IteratorInvalid, ElementInvalid {
69         synchronized( collection ){
70             check_invalid();
71             try {
72                 collection.element_replace( get_pos()-1, element );
73                 set_to_position( get_pos()-1 );
74             } catch ( PositionInvalid e ){
75                 invalidate();
76                throw new IteratorInvalid( IteratorInvalidReason.is_invalid );
77             }
78             return true;
79         }
80     }
81 /* ------------------------------------------------------------------------- */
82     public void add_n_elements_as_previous_set_iterator( Any JavaDoc[] elements ) throws IteratorInvalid, ElementInvalid {
83         throw new org.omg.CORBA.NO_IMPLEMENT JavaDoc();
84 // synchronized( collection ){
85 // }
86 }
87
88 }
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