StateRepository (Togglz - Core Framework 3.1.2 API)

All Known Implementing Classes:

CachingStateRepository, CompositeStateRepository, FileBasedStateRepository, InMemoryStateRepository, JDBCStateRepository, ListenableStateRepository, LoggingStateRepository, PropertyBasedStateRepository
```
public interface StateRepository
```
This interface defines the contract for a class that stores the feature state. Typical implementations are storing the state in a persistent way that works even across application restarts.

Author:

Christian Kaltepoth

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`FeatureState`	`getFeatureState(Feature feature)`	Get the persisted state of a feature from the repository.
`void`	`setFeatureState(FeatureState featureState)`	Persist the supplied feature state.

- Method Detail
  - getFeatureState
```
FeatureState getFeatureState(Feature feature)
```
    Get the persisted state of a feature from the repository. If the repository doesn't contain any information regarding this feature it must return null.
    
    Parameters:
    
    feature - The feature to read the state for
    
    Returns:
    
    The persisted feature state or null
  - setFeatureState
```
void setFeatureState(FeatureState featureState)
```
    Persist the supplied feature state. The repository implementation must ensure that subsequent calls to getFeatureState(Feature) return the same state as persisted using this method.
    
    Parameters:
    
    featureState - The feature state to persist
    
    Throws:
    
    UnsupportedOperationException - if this state repository does not support updates