Package org.apache.storm.trident.state

## Class BaseQueryFunction<S extends State,​T>

- java.lang.Object
- - org.apache.storm.trident.operation.BaseOperation
  - - org.apache.storm.trident.state.BaseQueryFunction<S,​T>

- All Implemented Interfaces:
    `Serializable`, `EachOperation`, `Operation`, `QueryFunction<S,​T>`
  Direct Known Subclasses:
    `AbstractRedisStateQuerier`, `JdbcQuery`, `MapGet`, `SnapshotGet`, `TupleCollectionGet`

      public abstract class BaseQueryFunction<S extends State,​T>
      extends BaseOperation
      implements QueryFunction<S,​T>

  See Also:
    Serialized Form

- - ### Constructor Summary

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

  - ### Method Summary

    - ### Methods inherited from class org.apache.storm.trident.operation.BaseOperation

      `cleanup, prepare`

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

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

    - ### Methods inherited from interface org.apache.storm.trident.operation.Operation

      `cleanup, prepare`

    - ### Methods inherited from interface org.apache.storm.trident.state.QueryFunction

      `batchRetrieve, execute`

- - ### Constructor Detail

    - #### BaseQueryFunction

          public BaseQueryFunction()