Package org.apache.storm.redis.state

## Class RedisKeyValueStateProvider

- java.lang.Object
- - org.apache.storm.redis.state.RedisKeyValueStateProvider

- All Implemented Interfaces:
    `StateProvider`

      public class RedisKeyValueStateProvider
      extends Object
      implements StateProvider

  Provides `RedisKeyValueState`.

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class | Description
    --- | --- | ---
    `static class` | `RedisKeyValueStateProvider.StateConfig` |

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `RedisKeyValueStateProvider()` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `State` | `newState​(String namespace, Map<String,​Object> topoConf, TopologyContext context)` | Returns a new state instance.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### RedisKeyValueStateProvider

          public RedisKeyValueStateProvider()

  - ### Method Detail

    - #### newState

          public State newState​(String namespace,
                                Map<String,​Object> topoConf,
                                TopologyContext context)

      Description copied from interface: `StateProvider`
      Returns a new state instance. Each state belongs unique namespace which is typically the componentid-task of the task, so that each task can have its own unique state.
      Specified by:
        `newState` in interface `StateProvider`
      Parameters:
        `namespace` - a namespace of the state
        `topoConf` - the storm topology configuration
        `context` - the `TopologyContext`
      Returns:
        a previously saved state if one exists otherwise a newly initialized state.