src/xmlpatterns/data/qnodebuilder_p.h
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 //
       
    43 //  W A R N I N G
       
    44 //  -------------
       
    45 //
       
    46 // This file is not part of the Qt API.  It exists purely as an
       
    47 // implementation detail.  This header file may change from version to
       
    48 // version without notice, or even be removed.
       
    49 //
       
    50 // We mean it.
       
    51 
       
    52 #ifndef Patternist_NodeBuilder_H
       
    53 #define Patternist_NodeBuilder_H
       
    54 
       
    55 #include "qitem_p.h"
       
    56 #include "qabstractxmlreceiver.h"
       
    57 #include "qautoptr_p.h"
       
    58 
       
    59 QT_BEGIN_HEADER
       
    60 
       
    61 QT_BEGIN_NAMESPACE
       
    62 
       
    63 namespace QPatternist
       
    64 {
       
    65     /**
       
    66      * @short Receives QAbstractXmlReceiver events and builds a node tree
       
    67      * in memory that afterwards can be retrieved via builtNode()
       
    68      *
       
    69      * @ingroup Patternist_xdm
       
    70      * @author Frans Englich <frans.englich@nokia.com>
       
    71      */
       
    72     class NodeBuilder : public QAbstractXmlReceiver
       
    73     {
       
    74     public:
       
    75         typedef AutoPtr<NodeBuilder> Ptr;
       
    76 
       
    77         inline NodeBuilder()
       
    78         {
       
    79         }
       
    80 
       
    81         /**
       
    82          * @short Returns the document that has been built.
       
    83          *
       
    84          * If this function is called before any events have been received, the result is undefined.
       
    85          *
       
    86          * The top node that was constructed can be retrieved by calling
       
    87          * NodeModel::root() on the returned NodeModel.
       
    88          *
       
    89          * This function is not @c const, because some implementations delay
       
    90          * the node construction until the node is needed. Also, text nodes are
       
    91          * difficult, at best, to construct until one knows that all text content
       
    92          * has been received(which a call to this function in a natural way
       
    93          * signals).
       
    94          */
       
    95         virtual QAbstractXmlNodeModel::Ptr builtDocument() = 0;
       
    96 
       
    97         /**
       
    98          * @short Creates a copy of this NodeBuilder, that operates independently of
       
    99          * this NodeBuilder.
       
   100          *
       
   101          * The caller owns the returned instance.
       
   102          */
       
   103         virtual NodeBuilder::Ptr create(const QUrl &baseURI) const = 0;
       
   104     };
       
   105 }
       
   106 
       
   107 QT_END_NAMESPACE
       
   108 
       
   109 QT_END_HEADER
       
   110 
       
   111 #endif