org.apache.ignite.stream

## Interface StreamSingleTupleExtractor<T,K,V>

- All Known Subinterfaces:
    StreamTupleExtractor<T,K,V>

      public interface StreamSingleTupleExtractor<T,K,V>

  Stream tuple extractor to convert a message to a single Ignite key-value tuple.

  Alternatively, `StreamMultipleTupleExtractor` can be used in cases where a single message/event may produce more than one tuple.

  NOTE: This interface supersedes the former `StreamTupleExtractor` which is now deprecated.

  See Also:
    `StreamMultipleTupleExtractor`

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `Map.Entry<K,V>` | `extract(T msg)` Extracts a key-value tuple from a message.

- - ### Method Detail

    - #### extract

          Map.Entry<K,V> extract(T msg)

      Extracts a key-value tuple from a message.
      Parameters:
        `msg` - Message.
      Returns:
        Key-value tuple.

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Ignite Database and Caching Platform | : ver. 2.9.0
Release Date | : October 15 2020