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flink-scala-api/org.apache.flink.api.extensions.impl.acceptPartialFunctions/OnKeyedStream

OnKeyedStream

org.apache.flink.api.extensions.impl.acceptPartialFunctions.OnKeyedStream

class OnKeyedStream[T, K](stream: KeyedStream[T, K])

Wraps a keyed data stream, allowing to use anonymous partial functions to perform extraction of items in a tuple, case class instance or collection

Attributes

K: The type of key
T: The type of the data stream items
stream: The wrapped data stream
Graph
Supertypes: class Object
trait Matchable
class Any

Members list

Concise view

Value members

Concrete methods

@PublicEvolving

Applies a reducer fun to the stream

Applies a reducer fun to the stream

Attributes

fun: The reducing function to be applied on the keyed stream
Returns:: A data set of Ts

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