| Name | Description | Type | Package | Framework |
| ReachTopology | This is a good example of doing complex Distributed RPC on top of Storm. | Class | storm.starter | Apache Storm |
| ReachTopology .CountAggregator | Class | storm.starter.ReachTopology | Apache Storm | |
| ReachTopology .GetFollowers | Class | storm.starter.ReachTopology | Apache Storm | |
| ReachTopology .GetTweeters | Class | storm.starter.ReachTopology | Apache Storm | |
| ReachTopology .PartialUniquer | Class | storm.starter.ReachTopology | Apache Storm | |