QSqlDriverPlugin Class Reference
|QSqlDriverPlugin ( QObject * parent = 0 )|
Reimplemented Public Functions
|virtual QSqlDriver *||create ( const QString & key ) = 0|
|virtual QStringList||keys () const = 0|
- 29 public functions inherited from QObject
Additional Inherited Members
- 1 property inherited from QObject
- 1 public slot inherited from QObject
- 1 signal inherited from QObject
- 7 static public members inherited from QObject
- 8 protected functions inherited from QObject
The QSqlDriverPlugin class provides an abstract base for custom QSqlDriver plugins.
The SQL driver plugin is a simple plugin interface that makes it easy to create your own SQL driver plugins that can be loaded dynamically by Qt.
Writing a SQL plugin is achieved by subclassing this base class, reimplementing the pure virtual functions keys() and create(), and exporting the class with the Q_EXPORT_PLUGIN2() macro. See the SQL plugins that come with Qt for example implementations (in the plugins/src/sqldrivers subdirectory of the source distribution).
See also How to Create Qt Plugins.
Member Function Documentation
QSqlDriverPlugin::QSqlDriverPlugin ( QObject * parent = 0 )
Constructs a SQL driver plugin and sets the parent to parent. This is invoked automatically by the Q_EXPORT_PLUGIN2() macro.
Destroys the SQL driver plugin.
You never have to call this explicitly. Qt destroys a plugin automatically when it is no longer used.
QSqlDriver * QSqlDriverPlugin::create ( const QString & key ) [pure virtual]
Creates and returns a QSqlDriver object for the driver called key. The driver key is usually the class name of the required driver. Keys are case sensitive.
See also keys().
QStringList QSqlDriverPlugin::keys () const [pure virtual]
Returns the list of drivers (keys) this plugin supports.
These keys are usually the class names of the custom drivers that are implemented in the plugin.
See also create().