xref: /trunk/main/unoxml/source/xpath/nodelist.cxx (revision cdf0e10c)
1 /*************************************************************************
2  *
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * Copyright 2000, 2010 Oracle and/or its affiliates.
6  *
7  * OpenOffice.org - a multi-platform office productivity suite
8  *
9  * This file is part of OpenOffice.org.
10  *
11  * OpenOffice.org is free software: you can redistribute it and/or modify
12  * it under the terms of the GNU Lesser General Public License version 3
13  * only, as published by the Free Software Foundation.
14  *
15  * OpenOffice.org is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU Lesser General Public License version 3 for more details
19  * (a copy is included in the LICENSE file that accompanied this code).
20  *
21  * You should have received a copy of the GNU Lesser General Public License
22  * version 3 along with OpenOffice.org.  If not, see
23  * <http://www.openoffice.org/license.html>
24  * for a copy of the LGPLv3 License.
25  *
26  ************************************************************************/
27 
28 #include <nodelist.hxx>
29 
30 #include "../dom/document.hxx"
31 
32 namespace XPath
33 {
34     CNodeList::CNodeList(
35                 ::rtl::Reference<DOM::CDocument> const& pDocument,
36                 ::osl::Mutex & rMutex,
37                 boost::shared_ptr<xmlXPathObject> const& rxpathObj)
38         : m_pDocument(pDocument)
39         , m_rMutex(rMutex)
40         , m_pNodeSet(0)
41     {
42         if (rxpathObj != NULL && rxpathObj->type == XPATH_NODESET)
43         {
44             m_pNodeSet = rxpathObj->nodesetval;
45             m_pXPathObj = rxpathObj;
46         }
47     }
48 
49     /**
50     The number of nodes in the list.
51     */
52     sal_Int32 SAL_CALL CNodeList::getLength() throw (RuntimeException)
53     {
54         ::osl::MutexGuard const g(m_rMutex);
55 
56         sal_Int32 value = 0;
57         if (m_pNodeSet != NULL)
58             value = xmlXPathNodeSetGetLength(m_pNodeSet);
59         return value;
60     }
61 
62     /**
63     Returns the indexth item in the collection.
64     */
65     Reference< XNode > SAL_CALL CNodeList::item(sal_Int32 index)
66         throw (RuntimeException)
67     {
68         ::osl::MutexGuard const g(m_rMutex);
69 
70         if (0 == m_pNodeSet) {
71             return 0;
72         }
73         xmlNodePtr const pNode = xmlXPathNodeSetItem(m_pNodeSet, index);
74         Reference< XNode > const xNode(m_pDocument->GetCNode(pNode).get());
75         return xNode;
76     }
77 }
78 
79