io.ray.streaming.api.function

Interface RichFunction

All Superinterfaces:

Function, Serializable

public interface RichFunction
extends Function

An interface for all user-defined functions to define the life cycle methods of the functions, and access the task context where the functions get executed.

Method Summary

Modifier and Type	Method and Description
void	close() Tear-down method for the user function which called after the last call to the user function.
void	open(RuntimeContext runtimeContext) Initialization method for user function which called before the first call to the user function.

Methods inherited from interface io.ray.streaming.api.function.Function

loadCheckpoint, saveCheckpoint

Method Detail

open

void open(RuntimeContext runtimeContext)

Initialization method for user function which called before the first call to the user function.

Parameters:

runtimeContext - runtime context

close

void close()

Tear-down method for the user function which called after the last call to the user function.