source: trunk/src/xmlpatterns/schema/qxsdattributeuse_p.h@ 883

/****************************************************************************
**
** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation ([email protected])
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at [email protected].
** $QT_END_LICENSE$
**
****************************************************************************/

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.

#ifndef Patternist_XsdAttributeUse_H
#define Patternist_XsdAttributeUse_H

#include "qxsdattribute_p.h"
#include "qxsdattributeterm_p.h"

#include <QtCore/QList>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

namespace QPatternist
{
    /**
     * @short Represents a XSD attribute use object.
     *
     * This class represents the <em>attribute use</em> object of a XML schema as described
     * <a href="http://www.w3.org/TR/xmlschema11-1/#cAttributeUse">here</a>.
     *
     * It contains information from a local attribute declaration (as child of <em>complexType</em>
     * or <em>attributeGroup</em> object).
     *
     * All other occurrences of the <em>attribute</em> object are represented by the XsdAttribute class.
     *
     * @see <a href="http://www.w3.org/Submission/2004/SUBM-xmlschema-api-20040309/xml-schema-api.html#Interface-XSAttributeUse">XML Schema API reference</a>
     * @ingroup Patternist_schema
     * @author Tobias Koenig <[email protected]>
     */
    class XsdAttributeUse : public XsdAttributeTerm
    {
        public:
            typedef QExplicitlySharedDataPointer<XsdAttributeUse> Ptr;
            typedef QList<XsdAttributeUse::Ptr> List;

            /**
             * Describes the value constraint of an attribute use.
             *
             * @see <a href="http://www.w3.org/TR/xmlschema11-1/#vc_au">Value Constraint Definition</a>
             */
            class ValueConstraint : public QSharedData
            {
                public:
                    typedef QExplicitlySharedDataPointer<ValueConstraint> Ptr;

                    /**
                     * Describes the <a href="http://www.w3.org/TR/xmlschema11-1/#au-value_constraint">value constraint</a> of an attribute use.
                     */
                    enum Variety
                    {
                        Default,  ///< The attribute use has a default value set.
                        Fixed     ///< The attribute use has a fixed value set.
                    };

                    /**
                     * Sets the @p variety of the attribute use value constraint.
                     */
                    void setVariety(Variety variety);

                    /**
                     * Returns the variety of the attribute use value constraint.
                     */
                    Variety variety() const;

                    /**
                     * Sets the @p value of the constraint.
                     */
                    void setValue(const QString &value);

                    /**
                     * Returns the value of the constraint.