provides getParam to extensions and the file part.
return the boolean parameter. Note setUri must be called with the input URI.
return the string parameter. Note setUri must be called with the input URI.
return the URI (file part) of the
If necessary attempt to create the folder which will contain the file, and throw an IOException if the folder cannot be created or written to.
return true if the format also supports streaming where each record is formatted (roughly) as it is received, and there is a bound on the total size needed for any request.