IStateListener

```
public interface IStateListener
```

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void stateChanged(long queueLength, int instanceId)

- Method Detail
  - stateChanged
```
void stateChanged(long queueLength,
                  int instanceId)
```
    Parameters:
    
    queueLength - the length of the resource's queue
    
    instanceId - an identifier for the resource instance. A resource instance could be a CPU core. If the resource has only one instance, the instanceId should be 0 for this instance.