src/xmlpatterns/schema/qxsdattributereference_p.h

   1 /****************************************************************************
   2 **
   3 ** Copyright (C) 2008 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_XsdAttributeReference_H
  53 #define Patternist_XsdAttributeReference_H
  54
  55 #include "qxsdattributeuse_p.h"
  56
  57 #include <QtXmlPatterns/QSourceLocation>
  58
  59 QT_BEGIN_HEADER
  60
  61 QT_BEGIN_NAMESPACE
  62
  63 namespace QPatternist
  64 {
  65     /**
  66      * @short A helper class for attribute reference resolving.
  67      *
  68      * For easy resolving of attribute references, we have this class
  69      * that can be used as a place holder for the real attribute use
  70      * object it is referring to.
  71      * So whenever the parser detects an attribute reference, it creates
  72      * a XsdAttributeReference and returns it instead of the XsdAttributeUse.
  73      * During a later phase, the resolver will look for all XsdAttributeReferences
  74      * in the schema and will replace them with their referring XsdAttributeUse
  75      * objects.
  76      *
  77      * @ingroup Patternist_schema
  78      * @author Tobias Koenig <tobias.koenig@nokia.com>
  79      */
  80     class XsdAttributeReference : public XsdAttributeUse
  81     {
  82         public:
  83             typedef QExplicitlySharedDataPointer<XsdAttributeReference> Ptr;
  84
  85             /**
  86              * Describes the type of the attribute reference.
  87              */
  88             enum Type
  89             {
  90                 AttributeUse,   ///< The reference points to an attribute use.
  91                 AttributeGroup  ///< The reference points to an attribute group.
  92             };
  93
  94             /**
  95              * Always returns false, used to avoid dynamic casts.
  96              */
  97             virtual bool isAttributeUse() const;
  98
  99             /**
 100              * Always returns true, used to avoid dynamic casts.
 101              */
 102             virtual bool isReference() const;
 103
 104             /**
 105              * Sets the @p type of the attribute reference.
 106              */
 107             void setType(Type type);
 108
 109             /**
 110              * Returns the type of the attribute reference.
 111              */
 112             Type type() const;
 113
 114             /**
 115              * Sets the @p name of the attribute or attribute group the
 116              * attribute reference refers to.
 117              */
 118             void setReferenceName(const QXmlName &name);
 119
 120             /**
 121              * Returns the name of the attribute or attribute group the
 122              * attribute reference refers to.
 123              */
 124             QXmlName referenceName() const;
 125
 126             /**
 127              * Sets the source @p location where the reference is located.
 128              */
 129             void setSourceLocation(const QSourceLocation &location);
 130
 131             /**
 132              * Returns the source location where the reference is located.
 133              */
 134             QSourceLocation sourceLocation() const;
 135
 136         private:
 137             Type            m_type;
 138             QXmlName        m_referenceName;
 139             QSourceLocation m_sourceLocation;
 140     };
 141 }
 142
 143 QT_END_NAMESPACE
 144
 145 QT_END_HEADER
 146
 147 #endif