BaseQueryFunction (Storm 2.7.1 API)

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()
```