# Package org.apache.storm.topology.base

- Class Summary
  Class | Description
  --- | ---
  BaseBasicBolt |
  BaseBatchBolt<T> |
  BaseComponent |
  BaseRichBolt |
  BaseRichSpout |
  BaseStatefulBolt<T extends State> |
  BaseStatefulWindowedBolt<T extends State> |
  BaseTickTupleAwareRichBolt | This class is based on BaseRichBolt, but is aware of tick tuple.
  BaseWindowedBolt |
  BaseWindowedBolt.Count | Holds a count value for count based windows and sliding intervals.
  BaseWindowedBolt.Duration | Holds a Time duration for time based windows and sliding intervals.