| Interface | Description | 
|---|---|
| BulkRetrievable | Interface for classes whose data may be retrieved in bulk from its remote source. | 
| RetrievalFuture | |
| RetrievalPostProcessor | |
| RetrievalService | |
| RetrievalService.SSLExceptionListener | |
| Retriever | |
| RetrieverFactory | 
| Class | Description | 
|---|---|
| AbstractRetrievalPostProcessor | Abstract base class for retrieval post-processors. | 
| BasicRetrievalService | Performs threaded retrieval of data. | 
| BulkRetrievalThread | Retrieves data for a  BulkRetrievable. | 
| HTTPRetriever | |
| JarRetriever | Retrieves resources identified by a jar url, which has the form jar: | 
| LocalRasterServerRetriever | |
| Progress | Stores progress information. | 
| URLRetriever |