## Uses of Interface
org.apache.storm.trident.state.map.MapState

- Packages that use MapState
  Package | Description
  --- | ---
  org.apache.storm.starter.trident |
  org.apache.storm.trident.state.map |
  org.apache.storm.trident.testing |

- - ### Uses of MapState in org.apache.storm.starter.trident

    Classes in org.apache.storm.starter.trident that implement MapState
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `DebugMemoryMapState<T>` |

  - ### Uses of MapState in org.apache.storm.trident.state.map

    Classes in org.apache.storm.trident.state.map that implement MapState
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `NonTransactionalMap<T>` |
    `class` | `OpaqueMap<T>` |
    `class` | `SnapshottableMap<T>` |
    `class` | `TransactionalMap<T>` |

    Methods in org.apache.storm.trident.state.map that return MapState
    Modifier and Type | Method | Description
    --- | --- | ---
    `static <T> MapState<T>` | NonTransactionalMap.`build​(IBackingMap<T> backing)` |
    `static <T> MapState<T>` | OpaqueMap.`build​(IBackingMap<OpaqueValue> backing)` |
    `static <T> MapState<T>` | TransactionalMap.`build​(IBackingMap<TransactionalValue> backing)` |

    Methods in org.apache.storm.trident.state.map with parameters of type MapState
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | MapCombinerAggStateUpdater.`updateState​(MapState map, List<TridentTuple> tuples, TridentCollector collector)` |
    `void` | MapReducerAggStateUpdater.`updateState​(MapState map, List<TridentTuple> tuples, TridentCollector collector)` |

    Constructors in org.apache.storm.trident.state.map with parameters of type MapState
    Constructor | Description
    --- | ---
    `SnapshottableMap​(MapState<T> delegate, List<Object> snapshotKey)` |

  - ### Uses of MapState in org.apache.storm.trident.testing

    Classes in org.apache.storm.trident.testing that implement MapState
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `LRUMemoryMapState<T>` |
    `class` | `MemoryMapState<T>` |