Interface definition to provide notifications with a source information.

To differentiate between signals of different sources types, this submission adds an enum and extra signal to provide it.

Change-Id: Iad711739c41894e9c74d83072c50ae17edc695f2
Reviewed-by: Torben Dannhauer <torben@dannhauer.info>
Reviewed-by: Yunqiao Yin <charles.yin@nokia.com>

src/sql/kernel/qsqldriver.cpp

@@ -237,6 +237,16 @@ bool QSqlDriver::isOpenError() const
     \value TableName A SQL table name
 */
 
+/*!
+    \enum QSqlDriver::NotificationSource
+
+    This enum contains a list of SQL notification sources.
+
+    \value Unknown The notification source is unknown
+    \value Self The notification source is the own connection
+    \value Other The notification source is another connection
+*/
+
 /*!
     \fn bool QSqlDriver::hasFeature(DriverFeature feature) const
 

src/sql/kernel/qsqldriver.h

@@ -78,6 +78,8 @@ public:
 
     enum IdentifierType { FieldName, TableName };
 
+    enum NotificationSource { Unknown, Self, Other };
+
     explicit QSqlDriver(QObject *parent=0);
     ~QSqlDriver();
     virtual bool isOpen() const;
@@ -120,6 +122,7 @@ public:
 
 Q_SIGNALS:
     void notification(const QString &name);
+    void notification(const QString &name, NotificationSource source);
 
 protected:
     virtual void setOpen(bool o);