Package org.apache.ignite.stream

## Interface StreamMultipleTupleExtractor<T,​K,​V>

-     public interface StreamMultipleTupleExtractor<T,​K,​V>

  Stream tuple extractor to convert a single message to zero, one or many tuples.

  For cases where cardinality will always be 1:1 (or 0:1), you may consider `StreamTupleExtractor`.

  See Also:
    `StreamTupleExtractor`

- - ### Method Summary

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

- - ### Method Detail

    - #### extract

          Map<K,​V> extract​(T msg)

      Extracts a set of key-values from a message.
      Parameters:
        `msg` - Message.
      Returns:
        Map containing resulting tuples.