This class allows the user of the GPUdbFileHandler class methods for download like - GPUdbFileHandler.download(String, String, DownloadOptions, FileDownloadListener) and GPUdbFileHandler.download(List, String, DownloadOptions, FileDownloadListener) to specify the download options which could be applied to the current download operation. Right now there is only option and that is whether to allow overwriting of files existing in the local directory or not. The static method defaultOptions() can be used to retrieve the default options for download.