| DataProvider | Simple implementation of a data provider. |
| DataProviderAdapter | An empty data provider. |
| JDB2Manager | JEB database file ("*.jdb2") manager. |
| JDB2Reader | JDB2 (JEB saved project database) record reader. |
| JDB2Reader.RecordDescription | Definition of a JDB2 record. |
| JDB2Writer | JDB2 (JEB saved project database) record writer. |
| MemoryFileStore | Implementation of a file-store where the record data is kept in memory. |
| ProjectFileStore | A project store backed by the file system. |
| SimpleFSFileStore | Implementation of a file-store where the record data is kept on the file system. |