QSqlDatabasePrivate Class Reference

Public Functions
void	copy (const QSqlDatabasePrivate *other)
	Copies the connection data from other. More...
void	disable ()
void	init (const QString &type)
	Create the actual driver instance type. More...
	QSqlDatabasePrivate (QSqlDatabase *d, QSqlDriver *dr=0)
	QSqlDatabasePrivate (const QSqlDatabasePrivate &other)
	~QSqlDatabasePrivate ()

Static Public Functions
static void	addDatabase (const QSqlDatabase &db, const QString &name)
static void	cleanConnections ()
static QSqlDatabase	database (const QString &name, bool open)
static DriverDict &	driverDict ()
static void	invalidateDb (const QSqlDatabase &db, const QString &name, bool doWarn=true)
static void	removeDatabase (const QString &name)
static QSqlDatabasePrivate *	shared_null ()

Public Variables
QString	connName
QString	connOptions
QString	dbname
QSqlDriver *	driver
QString	drvName
QString	hname
int	port
QSql::NumericalPrecisionPolicy	precisionPolicy
QString	pword
QSqlDatabase *	q
QAtomicInt	ref
QString	uname

Detailed Description

Definition at line 132 of file qsqldatabase.cpp.

Constructors and Destructors

QSqlDatabasePrivate() [1/2]

QSqlDatabasePrivate::QSqlDatabasePrivate ( QSqlDatabase *  d, QSqlDriver *  dr = 0  )

inline

Definition at line 135 of file qsqldatabase.cpp.

                                                            :
        q(d),
        driver(dr),
        port(-1)
    {
        ref = 1;
        precisionPolicy= QSql::LowPrecisionDouble;
    }

QSqlDatabasePrivate() [2/2]

QSqlDatabasePrivate::QSqlDatabasePrivate

(

const QSqlDatabasePrivate &

other

)

Definition at line 171 of file qsqldatabase.cpp.

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

~QSqlDatabasePrivate()

QSqlDatabasePrivate::~QSqlDatabasePrivate

(

)

Definition at line 186 of file qsqldatabase.cpp.

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

Functions

addDatabase()

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

static

Definition at line 254 of file qsqldatabase.cpp.

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);
    db.d->connName = name;
}

cleanConnections()

void QSqlDatabasePrivate::cleanConnections ( )

static

Definition at line 192 of file qsqldatabase.cpp.

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(), false);
        ++it;
    }
    dict->clear();
}

copy()

void QSqlDatabasePrivate::copy

(

const QSqlDatabasePrivate *

other

)

Copies the connection data from other.

Warning

This function is not part of the public interface.

Definition at line 294 of file qsqldatabase.cpp.

Referenced by QSqlDatabase::cloneDatabase().

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

database()

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

static

Warning

This function is not part of the public interface.

Definition at line 271 of file qsqldatabase.cpp.

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) {
        if (!db.open())
            qWarning() << "QSqlDatabasePrivate::database: unable to open database:" << db.lastError().text();

    }
    return db;
}

disable()

void QSqlDatabasePrivate::disable

(

)

Definition at line 307 of file qsqldatabase.cpp.

Referenced by invalidateDb().

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

driverDict()

DriverDict & QSqlDatabasePrivate::driverDict ( )

static

Definition at line 215 of file qsqldatabase.cpp.

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

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

init()

void QSqlDatabasePrivate::init

(

const QString &

type

)

Create the actual driver instance type.

Warning

This function is not part of the public interface.

Definition at line 762 of file qsqldatabase.cpp.

{
    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());
        if (QCoreApplication::instance() == 0)
            qWarning("QSqlDatabase: an instance of QCoreApplication is required for loading driver plugins");
        driver = shared_null()->driver;
    }
}

invalidateDb()

void QSqlDatabasePrivate::invalidateDb ( const QSqlDatabase &  db, const QString &  name, bool  doWarn = true  )

static

Definition at line 232 of file qsqldatabase.cpp.

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

removeDatabase()

void QSqlDatabasePrivate::removeDatabase ( const QString &  name )

static

Definition at line 242 of file qsqldatabase.cpp.

Referenced by QSqlDatabase::removeDatabase().

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

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

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

shared_null()

QSqlDatabasePrivate * QSqlDatabasePrivate::shared_null ( )

static

Definition at line 225 of file qsqldatabase.cpp.

Referenced by QSqlDatabase::QSqlDatabase().

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

Properties

connName

QString QSqlDatabasePrivate::connName

Definition at line 159 of file qsqldatabase.cpp.

Referenced by addDatabase(), and invalidateDb().

connOptions

QString QSqlDatabasePrivate::connOptions

Definition at line 158 of file qsqldatabase.cpp.

Referenced by copy(), and QSqlDatabasePrivate().

dbname

QString QSqlDatabasePrivate::dbname

Definition at line 152 of file qsqldatabase.cpp.

Referenced by copy(), and QSqlDatabasePrivate().

driver

QSqlDriver* QSqlDatabasePrivate::driver

Definition at line 151 of file qsqldatabase.cpp.

Referenced by QSqlDatabasePrivate().

drvName

QString QSqlDatabasePrivate::drvName

Definition at line 156 of file qsqldatabase.cpp.

Referenced by copy(), and QSqlDatabasePrivate().

hname

QString QSqlDatabasePrivate::hname

Definition at line 155 of file qsqldatabase.cpp.

Referenced by copy(), and QSqlDatabasePrivate().

port

int QSqlDatabasePrivate::port

Definition at line 157 of file qsqldatabase.cpp.

Referenced by copy(), and QSqlDatabasePrivate().

precisionPolicy

QSql::NumericalPrecisionPolicy QSqlDatabasePrivate::precisionPolicy

Definition at line 160 of file qsqldatabase.cpp.

Referenced by copy(), and QSqlDatabasePrivate().

pword

QString QSqlDatabasePrivate::pword

Definition at line 154 of file qsqldatabase.cpp.

Referenced by copy(), and QSqlDatabasePrivate().

q

QSqlDatabase* QSqlDatabasePrivate::q

Definition at line 150 of file qsqldatabase.cpp.

Referenced by copy(), and QSqlDatabasePrivate().

ref

QAtomicInt QSqlDatabasePrivate::ref

Definition at line 149 of file qsqldatabase.cpp.

Referenced by invalidateDb().

uname

QString QSqlDatabasePrivate::uname

Definition at line 153 of file qsqldatabase.cpp.

Referenced by copy(), and QSqlDatabasePrivate().

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

• /src/sql/kernel/qsqldatabase.cpp