StatefulWindowingTopology (Storm 2.7.1 API)

java.lang.Object
- org.apache.storm.starter.StatefulWindowingTopology

```
public class StatefulWindowingTopology
extends Object
```
A simple example that demonstrates the usage of IStatefulWindowedBolt to save the state of the windowing operation to avoid re-computation in case of failures.
The framework internally manages the window boundaries and does not invoke IWindowedBolt.execute(TupleWindow) for the already evaluated windows in case of restarts during failures. The IStatefulComponent.initState(State) is invoked with the previously saved state of the bolt after prepare, before the execute() method is invoked.

- Constructor Summary
  
  Constructors
  Constructor Description
  
  StatefulWindowingTopology()
- Method Summary
  
  All Methods Static Methods Concrete Methods
  Modifier and Type Method Description
  
  static void main(String[] args)
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- StatefulWindowingTopology
```
public StatefulWindowingTopology()
```

Method Detail

main

public static void main(String[] args)
                 throws Exception

Throws:: Exception