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Java > Open Source Codes > org > alfresco > jcr > item > ChildAssocNodeIteratorImpl


1 /*
2  * Copyright (C) 2005 Alfresco, Inc.
3  *
4  * Licensed under the Mozilla Public License version 1.1
5  * with a permitted attribution clause. You may obtain a
6  * copy of the License at
7  *
8  * http://www.alfresco.org/legal/license.txt
9  *
10  * Unless required by applicable law or agreed to in writing,
11  * software distributed under the License is distributed on an
12  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
13  * either express or implied. See the License for the specific
14  * language governing permissions and limitations under the
15  * License.
16  */
17 package org.alfresco.jcr.item;
18
19 import java.util.List JavaDoc;
20
21 import javax.jcr.Node;
22 import javax.jcr.NodeIterator;
23
24 import org.alfresco.jcr.session.SessionImpl;
25 import org.alfresco.jcr.util.AbstractRangeIterator;
26 import org.alfresco.service.cmr.repository.ChildAssociationRef;
27
28
29 /**
30  * Alfresco implementation of a Node Iterator
31  *
32  * @author David Caruana
33  */
34 public class ChildAssocNodeIteratorImpl extends AbstractRangeIterator
35     implements NodeIterator
36 {
37     private SessionImpl sessionImpl;
38     private List JavaDoc<ChildAssociationRef> childAssocs;
39     
40     
41     /**
42      * Construct
43      *
44      * @param context session context
45      * @param nodes node list
46      */
47     public ChildAssocNodeIteratorImpl(SessionImpl sessionImpl, List JavaDoc<ChildAssociationRef> childAssocs)
48     {
49         this.sessionImpl = sessionImpl;
50         this.childAssocs = childAssocs;
51     }
52     
53     /* (non-Javadoc)
54      * @see javax.jcr.NodeIterator#nextNode()
55      */
56     public Node nextNode()
57     {
58         long position = skip();
59         ChildAssociationRef childAssocRef = childAssocs.get((int)position);
60         NodeImpl nodeImpl = new NodeImpl(sessionImpl, childAssocRef.getChildRef());
61         return nodeImpl.getProxy();
62     }
63
64     /* (non-Javadoc)
65      * @see javax.jcr.RangeIterator#getSize()
66      */
67     public long getSize()
68     {
69         return childAssocs.size();
70     }
71
72     /* (non-Javadoc)
73      * @see java.util.Iterator#next()
74      */
75     public Object JavaDoc next()
76     {
77         return nextNode();
78     }
79
80 }
81
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