| Interface | Description | 
|---|---|
| Fetcher | Interface for an object that will fetch an InputStream given
 a fetch string. | 
| RangeFetcher | This class extracts a range of bytes from a given fetch key. | 
| Class | Description | 
|---|---|
| AbstractFetcher | |
| EmptyFetcher | |
| FetcherManager | Utility class to hold multiple fetchers. | 
| FetchKey | Pair of fetcherName (which fetcher to call) and the key
 to send to that fetcher to retrieve a specific file. | 
| Exception | Description | 
|---|---|
| FetcherStringException | If something goes wrong in parsing the fetcher string | 
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