16 #ifndef QQGSDATAPROVIDER_H 17 #define QQGSDATAPROVIDER_H 22 #include <QStringList> 57 NoDataCapabilities = 0,
65 : mDataSourceURI( uri )
103 if ( expandAuthConfig && mDataSourceURI.contains(
"authcfg" ) )
106 return uri.
uri( expandAuthConfig );
110 return mDataSourceURI;
126 virtual bool isValid() = 0;
148 Q_UNUSED( updateFeatureCount );
164 return QString::null;
210 if ( layers.
count() < 1 )
260 virtual QString description()
const = 0;
316 void fullExtentCalculated();
331 void dataChanged(
int changed );
virtual uint subLayerCount() const
return the number of layers for the current data source
virtual void setSubLayerVisibility(const QString &name, bool vis)
Set the visibility of the given sublayer name.
virtual QString subsetString()
Returns the subset definition string (typically sql) currently in use by the layer and used by the pr...
virtual bool setSubsetString(const QString &subset, bool updateFeatureCount=true)
Set the subset string used to create a subset of features in the layer.
A rectangle specified with double values.
virtual void updateExtents()
Update the extents of the layer.
virtual QString fileRasterFilters() const
Return raster file filter string.
virtual bool supportsSubsetString()
Provider supports setting of subset strings.
QDateTime mTimestamp
Timestamp of data in the moment when the data were loaded by provider.
Abstract base class for spatial data provider implementations.
void setError(const QgsError &theError)
Set error message.
virtual QString fileVectorFilters() const
Return vector file filter string.
virtual QDateTime dataTimestamp() const
Current time stamp of data source.
virtual QStringList subLayers() const
Sub-layers handled by this provider, in order from bottom to top.
const char * name() const
int count(const T &value) const
QgsDataProvider(QString const &uri="")
virtual QDateTime timestamp() const
Time stamp of data source in the moment when data/metadata were loaded by provider.
virtual QString dataSourceUri(bool expandAuthConfig=false) const
Get the data source specification.
virtual void setLayerOrder(const QStringList &layers)
Reorder the list of layer names to be rendered by this provider (in order from bottom to top) ...
QgsErrorMessage represents single error message.
virtual void setDataSourceUri(const QString &uri)
Set the data source specification.
virtual QStringList subLayerStyles() const
Sub-layer styles for each sub-layer handled by this provider, in order from bottom to top...
Class for storing the component parts of a PostgreSQL/RDBMS datasource URI.
QgsError is container for error messages (report).
void append(const QString &theMessage, const QString &theTag)
Append new error message.
virtual void reloadData()
Reloads the data from the source.
Class for storing a coordinate reference system (CRS)
void appendError(const QgsErrorMessage &theMessage)
Add error message.
virtual ~QgsDataProvider()
We need this so the subclass destructors get called.
QString uri(bool expandAuthConfig=true) const
return complete uri
virtual QgsError error() const
Get current status error.