| Name | Description | Type | Package | Framework |
| DasMetadataExtractor | OpenDAP DAS source. | Class | org.apache.oodt.opendapps.extractors | Apache OODT |
| MetadataExtractor | Interface for extracting metadata from a generic web accessible resource into a CAS metadata container. | Interface | org.apache.oodt.opendapps.extractors | Apache OODT |
| NcmlMetadataExtractor | Currently this class is simply a stub that doesn't do anything. | Class | org.apache.oodt.opendapps.extractors | Apache OODT |
| ThreddsMetadataExtractor | Class | org.apache.oodt.opendapps.extractors | Apache OODT | |