// abstract feature iterator implementations are not part of public API

/*
class QgsVectorLayerFeatureIterator : QgsAbstractFeatureIterator
{
%TypeHeaderCode
#include <qgsvectorlayerfeatureiterator.h>
%End
  public:
    QgsVectorLayerFeatureIterator( QgsVectorLayer* layer, const QgsFeatureRequest& request );

    ~QgsVectorLayerFeatureIterator();

    //! reset the iterator to the starting position
    virtual bool rewind();

    //! end of iterating: free the resources / lock
    virtual bool close();

  protected:
    void rewindEditBuffer();
    void prepareJoins();
    bool fetchNextAddedFeature( QgsFeature& f );
    bool fetchNextChangedGeomFeature( QgsFeature& f );
    bool fetchNextChangedAttributeFeature( QgsFeature& f );
    void useAddedFeature( const QgsFeature& src, QgsFeature& f );
    void useChangedAttributeFeature( QgsFeatureId fid, const QgsGeometry& geom, QgsFeature& f );
    bool nextFeatureFid( QgsFeature& f );
    void addJoinedAttributes( QgsFeature &f );

    /** Update feature with uncommited attribute updates */
    /*void updateChangedAttributes( QgsFeature& f );*/

    /** Update feature with uncommited geometry updates */
    /*void updateFeatureGeometry( QgsFeature& f );
};
*/