org.apache.flink.streaming.api.operators

Class StreamOperatorFactoryUtil

java.lang.Object

org.apache.flink.streaming.api.operators.StreamOperatorFactoryUtil

public class StreamOperatorFactoryUtil
extends Object

A utility to instantiate new operators with a given factory.

Constructor Summary

Constructors

Constructor and Description
StreamOperatorFactoryUtil()

Method Summary

Modifier and Type	Method and Description
static <OUT,OP extends StreamOperator<OUT>> Tuple2<OP,Optional<ProcessingTimeService>>	createOperator(StreamOperatorFactory<OUT> operatorFactory, StreamTask<OUT,?> containingTask, StreamConfig configuration, Output<StreamRecord<OUT>> output, OperatorEventDispatcher operatorEventDispatcher) Creates a new operator using a factory and makes sure that all special factory traits are properly handled.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StreamOperatorFactoryUtil

public StreamOperatorFactoryUtil()

Method Detail

createOperator

public static <OUT,OP extends StreamOperator<OUT>> Tuple2<OP,Optional<ProcessingTimeService>> createOperator(StreamOperatorFactory<OUT> operatorFactory,
                                                                                                             StreamTask<OUT,?> containingTask,
                                                                                                             StreamConfig configuration,
                                                                                                             Output<StreamRecord<OUT>> output,
                                                                                                             OperatorEventDispatcher operatorEventDispatcher)

Creates a new operator using a factory and makes sure that all special factory traits are properly handled.

Parameters:

operatorFactory - the operator factory.

containingTask - the containing task.

configuration - the configuration of the operator.

output - the output of the operator.

operatorEventDispatcher - the operator event dispatcher for communication between operator and coordinators.

Returns:

a newly created and configured operator, and the ProcessingTimeService instance it can access.