class OnCrossDataSet[L, R] extends AnyRef
Wraps a cross 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
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- @deprecated
- Deprecated
(Since version 1.18.0)
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new
OnCrossDataSet(ds: CrossDataSet[L, R])
- ds
The wrapped cross 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]
Starting from a cross data set, uses the function
fun
to project elements from both the input data sets in the resulting data setStarting from a cross data set, uses the function
fun
to project elements from both the input data sets 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 data set of Os
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- @PublicEvolving()
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