class CFileDataSource {CFileDataSource(URL& url, std::vector<uint16_t> exclusionList);CRingItem* getItem();}
Provides a source of ring items from a file. For information about
how to directly create and use this object see METHODS
below. The normal way to create a data source object, however is to
use CDataSourceFactory to create the correct
type of data source from a URI
CFileDataSource(URL& url, std::vector<uint16_t> exclusionList);
Creates a file data source.
url determines which file data
will be read from. The url must have a
file: protocol specified.
exclusionList is a list of data
item types that will not be passed to the caller
by getItem.
CRingItem* getItem();
Gets the next ring item from the file whose type is not
a type in the construtor's exclusionList.