FileLoader is an Loader that can loads a file from a path and extracts all the content.

FileRowLoader is an Loader that can loads a file from a path and extracts the contenst a line at a time.

GzipLoader is an Loader that can extracts a gzip file and returns all the content.

GzipRowLoader is an Loader that can extracts an object from a gzip file.

NullLoader is an Loader that does nothing - it does not extract rows so will generate no row events this is used for tables which process the artifact directly, e.g.

Loader is an interface which provides a method for loading a locally saved artifact Sources provided by the SDK: [GzipLoader], [GzipRowLoader], [FileSystemLoader], [FileSystemRowLoader].