class OnCoGroupDataSet[L, R] extends AnyRef
Wraps a co-group data set, allowing to use anonymous partial functions to perform extraction of items in a tuple, case class instance or collection
- L
The type of the left data set items
- R
The type of the right data set items
- Annotations
- @deprecated
- Deprecated
(Since version 1.18.0)
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new
OnCoGroupDataSet(ds: CoGroupDataSet[L, R])
- ds
The wrapped co-group data set
- Deprecated
All Flink Scala APIs are deprecated and will be removed in a future Flink major version. You can still build your application in Scala, but you should move to the Java version of either the DataStream and/or Table API.
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def
projecting[O](fun: (Stream[L], Stream[R]) ⇒ O)(implicit arg0: TypeInformation[O], arg1: ClassTag[O]): DataSet[O]
Co-groups the data sets using the function
fun
to project elements from both in the resulting data setCo-groups the data sets using the function
fun
to project elements from both in the resulting data set- O
The return type of the projection, for which type information must be known
- fun
The function that defines the projection of the co-group operation
- returns
A fully co-grouped data set of Os
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- @PublicEvolving()
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