class OnJoinFunctionAssigner[L, R] extends AnyRef
Wraps a join function assigner, 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
OnJoinFunctionAssigner(ds: JoinFunctionAssigner[L, R])
- ds
The wrapped join function assigner 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: (L, R) ⇒ O)(implicit arg0: TypeInformation[O], arg1: ClassTag[O]): DataSet[O]
Joins the data sets using the function
fun
to project elements from both in the resulting data setJoins 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 join
- returns
A fully joined data set of Os
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- @PublicEvolving()
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