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# qsqlfield.h

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    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** All rights reserved.
    00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
    00006 **
    00007 ** This file is part of the QtSql module of the Qt Toolkit.
    00008 **
    00009 ** $QT_BEGIN_LICENSE:LGPL$
    00010 ** Commercial Usage
    00011 ** Licensees holding valid Qt Commercial licenses may use this file in
    00012 ** accordance with the Qt Commercial License Agreement provided with the
    00013 ** Software or, alternatively, in accordance with the terms contained in
    00014 ** a written agreement between you and Nokia.
    00015 **
    00016 ** GNU Lesser General Public License Usage
    00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00018 ** General Public License version 2.1 as published by the Free Software
    00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00020 ** packaging of this file.  Please review the following information to
    00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00023 **
    00024 ** In addition, as a special exception, Nokia gives you certain additional
    00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
    00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you have questions regarding the use of this file, please contact
    00037 ** Nokia at qt-info@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QSQLFIELD_H
    00043 #define QSQLFIELD_H
    00044
    00045 #include <QtCore/qvariant.h>
    00046 #include <QtCore/qstring.h>
    00047
    00048 QT_BEGIN_HEADER
    00049
    00050 QT_BEGIN_NAMESPACE
    00051
    00052 QT_MODULE(Sql)
    00053
    00054 class QSqlFieldPrivate;
    00055
    00056 class Q_SQL_EXPORT QSqlField
    00057 {
    00058 public:
    00059     enum RequiredStatus { Unknown = -1, Optional = 0, Required = 1 };
    00060
    00061     QSqlField(const QString& fieldName = QString(),
    00062               QVariant::Type type = QVariant::Invalid);
    00063
    00064     QSqlField(const QSqlField& other);
    00065     QSqlField& operator=(const QSqlField& other);
    00066     bool operator==(const QSqlField& other) const;
    00067     inline bool operator!=(const QSqlField &other) const { return !operator==(other); }
    00068     ~QSqlField();
    00069
    00070     void setValue(const QVariant& value);
    00071     inline QVariant value() const
    00072     { return val; }
    00073     void setName(const QString& name);
    00074     QString name() const;
    00075     bool isNull() const;
    00076     void setReadOnly(bool readOnly);
    00077     bool isReadOnly() const;
    00078     void clear();
    00079     QVariant::Type type() const;
    00080     bool isAutoValue() const;
    00081
    00082     void setType(QVariant::Type type);
    00083     void setRequiredStatus(RequiredStatus status);
    00084     inline void setRequired(bool required)
    00085     { setRequiredStatus(required ? Required : Optional); }
    00086     void setLength(int fieldLength);
    00087     void setPrecision(int precision);
    00088     void setDefaultValue(const QVariant &value);
    00089     void setSqlType(int type);
    00090     void setGenerated(bool gen);
    00091     void setAutoValue(bool autoVal);
    00092
    00093     RequiredStatus requiredStatus() const;
    00094     int length() const;
    00095     int precision() const;
    00096     QVariant defaultValue() const;
    00097     int typeID() const;
    00098     bool isGenerated() const;
    00099     bool isValid() const;
    00100
    00101 #ifdef QT3_SUPPORT
    00102     inline QT3_SUPPORT void setNull() { clear(); }
    00103 #endif
    00104
    00105 private:
    00106     void detach();
    00107     QVariant val;
    00108     QSqlFieldPrivate* d;
    00109 };
    00110
    00111 #ifndef QT_NO_DEBUG_STREAM
    00112 Q_SQL_EXPORT QDebug operator<<(QDebug, const QSqlField &);
    00113 #endif
    00114
    00115 QT_END_NAMESPACE
    00116
    00117 QT_END_HEADER
    00118
    00119 #endif // QSQLFIELD_H