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Qt
Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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Qt
Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
|
[47] More...
Inheritance diagram for XyzDriver: Collaboration diagram for XyzDriver:Public Member Functions | |
| XyzDriver () | |
| ~XyzDriver () | |
| bool | hasFeature (DriverFeature) const override |
Returns true if the driver supports feature feature; otherwise returns false. | |
| bool | open (const QString &, const QString &, const QString &, const QString &, int, const QString &) override |
| Derived classes must reimplement this pure virtual function to open a database connection on database db, using user name user, password password, host host, port port and connection options options. | |
| void | close () override |
| Derived classes must reimplement this pure virtual function in order to close the database connection. | |
| QSqlResult * | createResult () const override |
| Creates an empty SQL result on the database. | |
| Public Member Functions inherited from QSqlDriver | |
| QSqlDriver (QObject *parent=nullptr) | |
| Constructs a new driver with the given parent. | |
| ~QSqlDriver () | |
| Destroys the object and frees any allocated resources. | |
| virtual bool | isOpen () const |
Returns true if the database connection is open; otherwise returns false. | |
| bool | isOpenError () const |
Returns true if the there was an error opening the database connection; otherwise returns false. | |
| virtual bool | beginTransaction () |
| This function is called to begin a transaction. | |
| virtual bool | commitTransaction () |
| This function is called to commit a transaction. | |
| virtual bool | rollbackTransaction () |
| This function is called to rollback a transaction. | |
| virtual QStringList | tables (QSql::TableType tableType) const |
| Returns a list of the names of the tables in the database. | |
| virtual QSqlIndex | primaryIndex (const QString &tableName) const |
| Returns the primary index for table tableName. | |
| virtual QSqlRecord | record (const QString &tableName) const |
| Returns a QSqlRecord populated with the names of the fields in table tableName. | |
| virtual QString | formatValue (const QSqlField &field, bool trimStrings=false) const |
| Returns a string representation of the field value for the database. | |
| virtual QString | escapeIdentifier (const QString &identifier, IdentifierType type) const |
| Returns the identifier escaped according to the database rules. | |
| virtual QString | sqlStatement (StatementType type, const QString &tableName, const QSqlRecord &rec, bool preparedStatement) const |
| Returns a SQL statement of type type for the table tableName with the values from rec. | |
| QSqlError | lastError () const |
| Returns a QSqlError object which contains information about the last error that occurred on the database. | |
| virtual QVariant | handle () const |
| Returns the low-level database handle wrapped in a QVariant or an invalid variant if there is no handle. | |
| virtual bool | subscribeToNotification (const QString &name) |
| This function is called to subscribe to event notifications from the database. | |
| virtual bool | unsubscribeFromNotification (const QString &name) |
| This function is called to unsubscribe from event notifications from the database. | |
| virtual QStringList | subscribedToNotifications () const |
| Returns a list of the names of the event notifications that are currently subscribed to. | |
| virtual bool | isIdentifierEscaped (const QString &identifier, IdentifierType type) const |
| Returns whether identifier is escaped according to the database rules. | |
| virtual QString | stripDelimiters (const QString &identifier, IdentifierType type) const |
| Returns the identifier with the leading and trailing delimiters removed, identifier can either be a table name or field name, dependent on type. | |
| void | setNumericalPrecisionPolicy (QSql::NumericalPrecisionPolicy precisionPolicy) |
| Sets \l numericalPrecisionPolicy to precisionPolicy. | |
| QSql::NumericalPrecisionPolicy | numericalPrecisionPolicy () const |
| Returns the \l numericalPrecisionPolicy. | |
| DbmsType | dbmsType () const |
| virtual int | maximumIdentifierLength (IdentifierType type) const |
| Public Member Functions inherited from QObject | |
| Q_INVOKABLE | QObject (QObject *parent=nullptr) |
| Constructs an object with parent object parent. | |
| virtual | ~QObject () |
| Destroys the object, deleting all its child objects. | |
| virtual bool | event (QEvent *event) |
| This virtual function receives events to an object and should return true if the event e was recognized and processed. | |
| virtual bool | eventFilter (QObject *watched, QEvent *event) |
| Filters events if this object has been installed as an event filter for the watched object. | |
| QString | objectName () const |
| Q_WEAK_OVERLOAD void | setObjectName (const QString &name) |
| Sets the object's name to name. | |
| void | setObjectName (QAnyStringView name) |
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. | |
| QBindable< QString > | bindableObjectName () |
| bool | isWidgetType () const |
Returns true if the object is a widget; otherwise returns false. | |
| bool | isWindowType () const |
Returns true if the object is a window; otherwise returns false. | |
| bool | isQuickItemType () const |
Returns true if the object is a QQuickItem; otherwise returns false. | |
| bool | signalsBlocked () const noexcept |
Returns true if signals are blocked; otherwise returns false. | |
| bool | blockSignals (bool b) noexcept |
| If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). | |
| QThread * | thread () const |
| Returns the thread in which the object lives. | |
| bool | moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL) |
Changes the thread affinity for this object and its children and returns true on success. | |
| int | startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer) |
| This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds. | |
| int | startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer) |
| void | killTimer (int id) |
| Kills the timer with timer identifier, id. | |
| void | killTimer (Qt::TimerId id) |
| template<typename T > | |
| T | findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object. | |
| template<typename T > | |
| QList< T > | findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. | |
| template<typename T > | |
| T | findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. | |
| template<typename T > | |
| QList< T > | findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const |
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. | |
| const QObjectList & | children () const |
| Returns a list of child objects. | |
| void | setParent (QObject *parent) |
| Makes the object a child of parent. | |
| void | installEventFilter (QObject *filterObj) |
| Installs an event filter filterObj on this object. | |
| void | removeEventFilter (QObject *obj) |
| Removes an event filter object obj from this object. | |
| QMetaObject::Connection | connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const |
| bool | disconnect (const char *signal=nullptr, const QObject *receiver=nullptr, const char *member=nullptr) const |
| bool | disconnect (const QObject *receiver, const char *member=nullptr) const |
| void | dumpObjectTree () const |
| Dumps a tree of children to the debug output. | |
| void | dumpObjectInfo () const |
| Dumps information about signal connections, etc. | |
| bool | setProperty (const char *name, const QVariant &value) |
| Sets the value of the object's name property to value. | |
| bool | setProperty (const char *name, QVariant &&value) |
| QVariant | property (const char *name) const |
| Returns the value of the object's name property. | |
| QList< QByteArray > | dynamicPropertyNames () const |
| QBindingStorage * | bindingStorage () |
| const QBindingStorage * | bindingStorage () const |
| QObject * | parent () const |
| Returns a pointer to the parent object. | |
| bool | inherits (const char *classname) const |
Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. | |
Additional Inherited Members | |
| Public Types inherited from QSqlDriver | |
| enum | DriverFeature { Transactions , QuerySize , BLOB , Unicode , PreparedQueries , NamedPlaceholders , PositionalPlaceholders , LastInsertId , BatchOperations , SimpleLocking , LowPrecisionNumbers , EventNotifications , FinishQuery , MultipleResultSets , CancelQuery } |
| This enum contains a list of features a driver might support. More... | |
| enum | StatementType { WhereStatement , SelectStatement , UpdateStatement , InsertStatement , DeleteStatement } |
| This enum contains a list of SQL statement (or clause) types the driver can create. More... | |
| enum | IdentifierType { FieldName , TableName } |
| This enum contains a list of SQL identifier types. More... | |
| enum | NotificationSource { UnknownSource , SelfSource , OtherSource } |
| This enum contains a list of SQL notification sources. More... | |
| enum | DbmsType { UnknownDbms , MSSqlServer , MySqlServer , PostgreSQL , Oracle , Sybase , SQLite , Interbase , DB2 , MimerSQL } |
| Public Slots inherited from QSqlDriver | |
| virtual bool | cancelQuery () |
| Public Slots inherited from QObject | |
| void | deleteLater () |
| \threadsafe | |
| Signals inherited from QSqlDriver | |
| void | notification (const QString &name, QSqlDriver::NotificationSource source, const QVariant &payload) |
| Signals inherited from QObject | |
| void | destroyed (QObject *=nullptr) |
| This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked. | |
| void | objectNameChanged (const QString &objectName, QPrivateSignal) |
| This signal is emitted after the object's name has been changed. | |
| Static Public Member Functions inherited from QObject | |
| static QMetaObject::Connection | connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection) |
| \threadsafe | |
| static QMetaObject::Connection | connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection) |
| template<typename Func1 , typename Func2 > | |
| static QMetaObject::Connection | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType *context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection) |
| template<typename Func1 , typename Func2 > | |
| static QMetaObject::Connection | connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot) |
| static bool | disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member) |
| \threadsafe | |
| static bool | disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member) |
| static bool | disconnect (const QMetaObject::Connection &) |
| Disconnect a connection. | |
| template<typename Func1 , typename Func2 > | |
| static bool | disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiver, Func2 slot) |
| template<typename Func1 > | |
| static bool | disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *receiver, void **zero) |
| Protected Member Functions inherited from QSqlDriver | |
| QSqlDriver (QSqlDriverPrivate &dd, QObject *parent=nullptr) | |
| virtual void | setOpen (bool o) |
| This function sets the open state of the database to open. | |
| virtual void | setOpenError (bool e) |
| This function sets the open error state of the database to error. | |
| virtual void | setLastError (const QSqlError &e) |
| This function is used to set the value of the last error, error, that occurred on the database. | |
| Protected Member Functions inherited from QObject | |
| QObject * | sender () const |
| Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr. | |
| int | senderSignalIndex () const |
| int | receivers (const char *signal) const |
| Returns the number of receivers connected to the signal. | |
| bool | isSignalConnected (const QMetaMethod &signal) const |
| virtual void | timerEvent (QTimerEvent *event) |
| This event handler can be reimplemented in a subclass to receive timer events for the object. | |
| virtual void | childEvent (QChildEvent *event) |
| This event handler can be reimplemented in a subclass to receive child events. | |
| virtual void | customEvent (QEvent *event) |
| This event handler can be reimplemented in a subclass to receive custom events. | |
| virtual void | connectNotify (const QMetaMethod &signal) |
| virtual void | disconnectNotify (const QMetaMethod &signal) |
| QObject (QObjectPrivate &dd, QObject *parent=nullptr) | |
| Protected Attributes inherited from QObject | |
| QScopedPointer< QObjectData > | d_ptr |
| Properties inherited from QSqlDriver | |
| QSql::NumericalPrecisionPolicy | numericalPrecisionPolicy |
| Properties inherited from QObject | |
| QString | objectName |
| the name of this object | |
| Related Symbols inherited from QObject | |
| template< class T > T | qobject_cast (const QObject *object) |
| Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr. | |
| template< typename T > T | qFindChildqFindChildren (const QObject *obj, const QString &name)() |
| template< typename T > QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QString &name)() |
| QObjectList | |
| \macro Q_CLASSINFO(Name, Value) | |
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inline |
Definition at line 452 of file sqldatabase.cpp.
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inline |
Definition at line 453 of file sqldatabase.cpp.
|
inlineoverridevirtual |
Derived classes must reimplement this pure virtual function in order to close the database connection.
Return true on success, false on failure.
Implements QSqlDriver.
Definition at line 460 of file sqldatabase.cpp.
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inlineoverridevirtual |
Creates an empty SQL result on the database.
Derived classes must reimplement this function and return a QSqlResult object appropriate for their database to the caller.
Implements QSqlDriver.
Definition at line 461 of file sqldatabase.cpp.
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inlineoverridevirtual |
Returns true if the driver supports feature feature; otherwise returns false.
Note that some databases need to be open() before this can be determined.
Implements QSqlDriver.
Definition at line 455 of file sqldatabase.cpp.
|
inlineoverridevirtual |
Derived classes must reimplement this pure virtual function to open a database connection on database db, using user name user, password password, host host, port port and connection options options.
The function must return true on success and false on failure.
Implements QSqlDriver.
Definition at line 456 of file sqldatabase.cpp.
1.10.0