# Uses of Interface
org.apache.storm.trident.operation.GroupedMultiReducer

Packages that use GroupedMultiReducer
Package
Description
org.apache.storm.trident
org.apache.storm.trident.operation.impl

- ## Uses of GroupedMultiReducer in org.apache.storm.trident

  Methods in org.apache.storm.trident with parameters of type GroupedMultiReducer
  Modifier and Type
  Method
  Description
  `Stream`
  TridentTopology.`multiReduce(List<GroupedStream> streams, GroupedMultiReducer function, Fields outputFields)`
  `Stream`
  TridentTopology.`multiReduce(List<Fields> inputFields, List<GroupedStream> groupedStreams, GroupedMultiReducer function, Fields outputFields)`
  `Stream`
  TridentTopology.`multiReduce(GroupedStream s1, GroupedStream s2, GroupedMultiReducer function, Fields outputFields)`
  `Stream`
  TridentTopology.`multiReduce(Fields inputFields1, GroupedStream s1, Fields inputFields2, GroupedStream s2, GroupedMultiReducer function, Fields outputFields)`

- ## Uses of GroupedMultiReducer in org.apache.storm.trident.operation.impl

  Classes in org.apache.storm.trident.operation.impl that implement GroupedMultiReducer
  Modifier and Type
  Class
  Description
  `class`
  `JoinerMultiReducer`
  `class`
  `PreservingFieldsOrderJoinerMultiReducer`
  Constructors in org.apache.storm.trident.operation.impl with parameters of type GroupedMultiReducer
  Modifier
  Constructor
  Description
  ``
  `GroupedMultiReducerExecutor(GroupedMultiReducer reducer, List<Fields> groupFields, List<Fields> inputFields)`