Package org.apache.flink.state.api.input.operator.window

Interface WindowContents<S extends org.apache.flink.api.common.state.State,IN>

Type Parameters:
S - The initial state type.
IN - The data in state.
All Superinterfaces:
Serializable
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface public interface WindowContents<S extends org.apache.flink.api.common.state.State,IN> extends Serializable
An abstraction for transforming any State type into an iterable over its contents.

  • Method Details

    • reducingState

      static <T> WindowContents<org.apache.flink.api.common.state.ReducingState<T>,T> reducingState()

    • aggregatingState

      static <IN, OUT> WindowContents<org.apache.flink.api.common.state.AggregatingState<IN,OUT>,OUT> aggregatingState()

    • listState

      static <T> WindowContents<org.apache.flink.api.common.state.ListState<T>,T> listState()

    • contents

      Iterable<IN> contents(S state) throws Exception
      Throws:
      Exception