## Uses of Interface
org.apache.storm.streams.operations.PairFunction

- Packages that use PairFunction
  Package | Description
  --- | ---
  org.apache.storm.sql.runtime.streams.functions |
  org.apache.storm.streams |
  org.apache.storm.streams.operations.mappers |

- - ### Uses of PairFunction in org.apache.storm.sql.runtime.streams.functions

    Classes in org.apache.storm.sql.runtime.streams.functions that implement PairFunction
    Modifier and Type | Class and Description
    --- | ---
    `class` | `StreamInsertMapToPairFunction`

  - ### Uses of PairFunction in org.apache.storm.streams

    Methods in org.apache.storm.streams with parameters of type PairFunction
    Modifier and Type | Method and Description
    --- | ---
    `<K,V> PairStream<K,V>` | Stream.`mapToPair(PairFunction<? super T,? extends K,? extends V> function)` Returns a stream of key-value pairs by applying a `PairFunction` on each value of this stream.

  - ### Uses of PairFunction in org.apache.storm.streams.operations.mappers

    Classes in org.apache.storm.streams.operations.mappers that implement PairFunction
    Modifier and Type | Class and Description
    --- | ---
    `class` | `PairValueMapper<K,V>` Extracts a typed key-value pair from a tuple.

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