| Package | Description | 
|---|---|
| org.apache.storm.topology | |
| org.apache.storm.topology.base | 
| Modifier and Type | Interface and Description | 
|---|---|
interface  | 
IStatefulBolt<T extends State>
A bolt abstraction for supporting stateful computation. 
 | 
interface  | 
IStatefulWindowedBolt<T extends State>
A windowed bolt abstraction for supporting windowing operation with state 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
StatefulWindowedBoltExecutor<T extends State>
Wraps a  
IStatefulWindowedBolt and handles the execution. | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
BaseStatefulBolt<T extends State>  | 
class  | 
BaseStatefulWindowedBolt<T extends State>  | 
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