org.apache.storm.trident.operation.builtin

## Class MapGet

- java.lang.Object
- - org.apache.storm.trident.operation.BaseOperation
  - - org.apache.storm.trident.state.BaseQueryFunction<ReadOnlyMapState,Object>
    - - org.apache.storm.trident.operation.builtin.MapGet

- All Implemented Interfaces:
    Serializable, EachOperation, Operation, QueryFunction<ReadOnlyMapState,Object>

      public class MapGet
      extends BaseQueryFunction<ReadOnlyMapState,Object>

  See Also:
    Serialized Form

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `MapGet()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `List<Object>` | `batchRetrieve(ReadOnlyMapState map, List<TridentTuple> keys)`
    `void` | `execute(TridentTuple tuple, Object result, TridentCollector collector)`

    - ### 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`

- - ### Constructor Detail

    - #### MapGet

          public MapGet()

  - ### Method Detail

    - #### batchRetrieve

          public List<Object> batchRetrieve(ReadOnlyMapState map,
                                            List<TridentTuple> keys)

    - #### execute

          public void execute(TridentTuple tuple,
                              Object result,
                              TridentCollector collector)

Copyright © 2021 The Apache Software Foundation. All rights reserved.