QSqlDatabasePrivate Class Reference

Collaboration diagram for QSqlDatabasePrivate:

[legend]List of all members.

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Detailed Description

Definition at line 101 of file qsqldatabase.cpp.

Public Member Functions
	QSqlDatabasePrivate (QSqlDriver *dr=0)
	QSqlDatabasePrivate (const QSqlDatabasePrivate &other)
	~QSqlDatabasePrivate ()
void	init (const QString &type)
void	copy (const QSqlDatabasePrivate *other)
void	disable ()
Static Public Member Functions
static QSqlDatabasePrivate *	shared_null ()
static QSqlDatabase	database (const QString &name, bool open)
static void	addDatabase (const QSqlDatabase &db, const QString &name)
static void	removeDatabase (const QString &name)
static void	invalidateDb (const QSqlDatabase &db, const QString &name)
static DriverDict &	driverDict ()
static void	cleanConnections ()
Public Attributes
QAtomic	ref
QSqlDriver *	driver
QString	dbname
QString	uname
QString	pword
QString	hname
QString	drvName
int	port
QString	connOptions

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Constructor & Destructor Documentation

QSqlDatabasePrivate::QSqlDatabasePrivate

(

QSqlDriver *

dr = 0

)

[inline]

Definition at line 104 of file qsqldatabase.cpp.

References ref.

00104                                            :
00105         driver(dr),
00106         port(-1)
00107     {
00108         ref = 1;
00109     }
    QSqlDatabasePrivate(const QSqlDatabasePrivate &other);

QSqlDatabasePrivate::QSqlDatabasePrivate

(

const QSqlDatabasePrivate &

other

)

Definition at line 136 of file qsqldatabase.cpp.

References connOptions, dbname, driver, drvName, hname, port, pword, ref, and uname.

{
    ref = 1;
    dbname = other.dbname;
    uname = other.uname;
    pword = other.pword;
    hname = other.hname;
    drvName = other.drvName;
    port = other.port;
    connOptions = other.connOptions;
    driver = other.driver;
}

QSqlDatabasePrivate::~QSqlDatabasePrivate

(

)

Definition at line 149 of file qsqldatabase.cpp.

References driver, and shared_null().

{
    if (driver != shared_null()->driver)
        delete driver;
}

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Member Function Documentation

void QSqlDatabasePrivate::init

(

const QString &

type

)

Definition at line 677 of file qsqldatabase.cpp.

References data, driver, driverDict(), QSqlDatabase::drivers(), drvName, qWarning(), shared_null(), and type.

Referenced by QSqlDatabase::QSqlDatabase().

{
    drvName = type;

    if (!driver) {
#ifdef QT_SQL_PSQL
        if (type == QLatin1String("QPSQL") || type == QLatin1String("QPSQL7"))
            driver = new QPSQLDriver();
#endif
#ifdef QT_SQL_MYSQL
        if (type == QLatin1String("QMYSQL") || type == QLatin1String("QMYSQL3"))
            driver = new QMYSQLDriver();
#endif
#ifdef QT_SQL_ODBC
        if (type == QLatin1String("QODBC") || type == QLatin1String("QODBC3"))
            driver = new QODBCDriver();
#endif
#ifdef QT_SQL_OCI
        if (type == QLatin1String("QOCI") || type == QLatin1String("QOCI8"))
            driver = new QOCIDriver();
#endif
#ifdef QT_SQL_TDS
        if (type == QLatin1String("QTDS") || type == QLatin1String("QTDS7"))
            driver = new QTDSDriver();
#endif
#ifdef QT_SQL_DB2
        if (type == QLatin1String("QDB2"))
            driver = new QDB2Driver();
#endif
#ifdef QT_SQL_SQLITE
        if (type == QLatin1String("QSQLITE"))
            driver = new QSQLiteDriver();
#endif
#ifdef QT_SQL_SQLITE2
        if (type == QLatin1String("QSQLITE2"))
            driver = new QSQLite2Driver();
#endif
#ifdef QT_SQL_IBASE
        if (type == QLatin1String("QIBASE"))
            driver = new QIBaseDriver();
#endif
    }

    if (!driver) {
        DriverDict dict = QSqlDatabasePrivate::driverDict();
        for (DriverDict::const_iterator it = dict.constBegin();
             it != dict.constEnd() && !driver; ++it) {
            if (type == it.key()) {
                driver = ((QSqlDriverCreatorBase*)(*it))->createObject();
            }
        }
    }

#ifndef QT_NO_LIBRARY
    if (!driver && loader()) {
        if (QSqlDriverFactoryInterface *factory = qobject_cast<QSqlDriverFactoryInterface*>(loader()->instance(type)))
            driver = factory->create(type);
    }
#endif // QT_NO_LIBRARY

    if (!driver) {
        qWarning("QSqlDatabase: %s driver not loaded", type.toLatin1().data());
        qWarning("QSqlDatabase: available drivers: %s",
                        QSqlDatabase::drivers().join(QLatin1String(" ")).toLatin1().data());
        driver = shared_null()->driver;
    }
}

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void QSqlDatabasePrivate::copy

(

const QSqlDatabasePrivate *

other

)

Definition at line 254 of file qsqldatabase.cpp.

References connOptions, dbname, drvName, hname, port, pword, and uname.

{
    dbname = other->dbname;
    uname = other->uname;
    pword = other->pword;
    hname = other->hname;
    drvName = other->drvName;
    port = other->port;
    connOptions = other->connOptions;
}

void QSqlDatabasePrivate::disable

(

)

Definition at line 265 of file qsqldatabase.cpp.

References driver, and shared_null().

Referenced by invalidateDb().

{
    if (driver != shared_null()->driver) {
        delete driver;
        driver = shared_null()->driver;
    }
}

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QSqlDatabasePrivate * QSqlDatabasePrivate::shared_null

(

)

[static]

Definition at line 188 of file qsqldatabase.cpp.

References n.

Referenced by disable(), init(), QSqlDatabase::isValid(), QSqlDatabase::QSqlDatabase(), and ~QSqlDatabasePrivate().

{
    static QSqlNullDriver dr;
    static QSqlDatabasePrivate n(&dr);
    return &n;
}

QSqlDatabase QSqlDatabasePrivate::database	(	const QString &	name,
		bool	open
	)			[static]

Definition at line 232 of file qsqldatabase.cpp.

References QByteArray::data(), QSqlDatabase::isOpen(), QSqlDatabase::isValid(), QSqlDatabase::lastError(), QConnectionDict::lock, QReadWriteLock::lockForRead(), name, QSqlDatabase::open(), qWarning(), QSqlError::text(), QString::toLocal8Bit(), QReadWriteLock::unlock(), and QHash< Key, T >::value().

Referenced by QSqlDatabase::database().

{
    const QConnectionDict *dict = dbDict();
    Q_ASSERT(dict);

    dict->lock.lockForRead();
    QSqlDatabase db = dict->value(name);
    dict->lock.unlock();
    if (db.isValid() && !db.isOpen() && open) {
        db.open();
        if (!db.isOpen())
            qWarning("QSqlDatabasePrivate::database: unable to open database: %s",
                     db.lastError().text().toLocal8Bit().data());

    }
    return db;
}

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void QSqlDatabasePrivate::addDatabase	(	const QSqlDatabase &	db,
		const QString &	name
	)			[static]

Definition at line 216 of file qsqldatabase.cpp.

References QHash< Key, T >::contains(), QHash< Key, T >::insert(), invalidateDb(), QConnectionDict::lock, name, qWarning(), and QHash< Key, T >::take().

Referenced by QSqlDatabase::addDatabase(), and QSqlDatabase::cloneDatabase().

{
    QConnectionDict *dict = dbDict();
    Q_ASSERT(dict);
    QWriteLocker locker(&dict->lock);

    if (dict->contains(name)) {
        invalidateDb(dict->take(name), name);
        qWarning("QSqlDatabasePrivate::addDatabase: duplicate connection name '%s', old "
                 "connection removed.", name.toLocal8Bit().data());
    }
    dict->insert(name, db);
}

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void QSqlDatabasePrivate::removeDatabase

(

const QString &

name

)

[static]

Definition at line 204 of file qsqldatabase.cpp.

References QHash< Key, T >::contains(), invalidateDb(), QConnectionDict::lock, name, and QHash< Key, T >::take().

Referenced by QSqlDatabase::removeDatabase().

{
    QConnectionDict *dict = dbDict();
    Q_ASSERT(dict);
    QWriteLocker locker(&dict->lock);

    if (!dict->contains(name))
        return;

    invalidateDb(dict->take(name), name);
}

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void QSqlDatabasePrivate::invalidateDb	(	const QSqlDatabase &	db,
		const QString &	name
	)			[static]

Definition at line 195 of file qsqldatabase.cpp.

References QSqlDatabase::d, disable(), name, qWarning(), and ref.

Referenced by addDatabase(), cleanConnections(), and removeDatabase().

{
    if (db.d->ref != 1) {
        qWarning("QSqlDatabasePrivate::removeDatabase: connection '%s' is still in use, "
                 "all queries will cease to work.", name.toLocal8Bit().constData());
        db.d->disable();
    }
}

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DriverDict & QSqlDatabasePrivate::driverDict

(

)

[static]

Definition at line 178 of file qsqldatabase.cpp.

References cleanDriverDict(), qAddPostRoutine(), and qDriverDictInit.

Referenced by cleanDriverDict(), QSqlDatabase::drivers(), init(), and QSqlDatabase::registerSqlDriver().

{
    static DriverDict dict;
    if (!qDriverDictInit) {
        qDriverDictInit = true;
        qAddPostRoutine(cleanDriverDict);
    }
    return dict;
}

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void QSqlDatabasePrivate::cleanConnections

(

)

[static]

Definition at line 155 of file qsqldatabase.cpp.

References QHash< Key, T >::begin(), QHash< Key, T >::clear(), QHash< Key, T >::end(), invalidateDb(), QHash< QString, QSqlDatabase >::iterator, and QConnectionDict::lock.

Referenced by cleanDriverDict().

{
    QConnectionDict *dict = dbDict();
    Q_ASSERT(dict);
    QWriteLocker locker(&dict->lock);

    QConnectionDict::iterator it = dict->begin();
    while (it != dict->end()) {
        invalidateDb(it.value(), it.key());
        ++it;
    }
    dict->clear();
}

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Member Data Documentation

QAtomic QSqlDatabasePrivate::ref

Definition at line 116 of file qsqldatabase.cpp.

Referenced by invalidateDb(), QSqlDatabase::QSqlDatabase(), QSqlDatabasePrivate(), and QSqlDatabase::~QSqlDatabase().

QSqlDriver* QSqlDatabasePrivate::driver

Definition at line 117 of file qsqldatabase.cpp.

Referenced by QSqlDatabase::close(), QSqlDatabase::commit(), disable(), QSqlDatabase::driver(), QSqlDatabase::exec(), init(), QSqlDatabase::isOpen(), QSqlDatabase::isOpenError(), QSqlDatabase::isValid(), QSqlDatabase::lastError(), QSqlDatabase::open(), QSqlDatabase::primaryIndex(), QSqlDatabasePrivate(), QSqlDatabase::record(), QSqlDatabase::rollback(), QSqlDatabase::tables(), QSqlDatabase::transaction(), and ~QSqlDatabasePrivate().

QString QSqlDatabasePrivate::dbname

Definition at line 118 of file qsqldatabase.cpp.

Referenced by copy(), QSqlDatabase::databaseName(), QSqlDatabase::open(), QSqlDatabasePrivate(), and QSqlDatabase::setDatabaseName().

QString QSqlDatabasePrivate::uname

Definition at line 119 of file qsqldatabase.cpp.

Referenced by copy(), QSqlDatabase::open(), QSqlDatabasePrivate(), QSqlDatabase::setUserName(), and QSqlDatabase::userName().

QString QSqlDatabasePrivate::pword

Definition at line 120 of file qsqldatabase.cpp.

Referenced by copy(), QSqlDatabase::open(), QSqlDatabase::password(), QSqlDatabasePrivate(), and QSqlDatabase::setPassword().

QString QSqlDatabasePrivate::hname

Definition at line 121 of file qsqldatabase.cpp.

Referenced by copy(), QSqlDatabase::hostName(), QSqlDatabase::open(), QSqlDatabasePrivate(), and QSqlDatabase::setHostName().

QString QSqlDatabasePrivate::drvName

Definition at line 122 of file qsqldatabase.cpp.

Referenced by copy(), QSqlDatabase::driverName(), init(), and QSqlDatabasePrivate().

int QSqlDatabasePrivate::port

Definition at line 123 of file qsqldatabase.cpp.

Referenced by copy(), QSqlDatabase::open(), QSqlDatabase::port(), QSqlDatabasePrivate(), and QSqlDatabase::setPort().

QString QSqlDatabasePrivate::connOptions

Definition at line 124 of file qsqldatabase.cpp.

Referenced by QSqlDatabase::connectOptions(), copy(), QSqlDatabase::open(), QSqlDatabasePrivate(), and QSqlDatabase::setConnectOptions().

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The documentation for this class was generated from the following file:

• src/sql/kernel/qsqldatabase.cpp

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