io.ray.streaming.api.partition

接口 Partition<T>

类型参数:

T - Type of the input data.

所有超级接口:

Function, Serializable

所有已知实现类:

BroadcastPartition, ForwardPartition, KeyPartition, PythonPartition, RoundRobinPartition

函数接口:

这是一个函数接口, 因此可用作 lambda 表达式或方法引用的赋值目标。

@FunctionalInterface
public interface Partition<T>
extends Function

Interface of the partitioning strategy.

方法概要

限定符和类型	方法和说明
int[]	partition(T record, int numPartition) Given a record and downstream partitions, determine which partition(s) should receive the record.

从接口继承的方法 io.ray.streaming.api.function.Function

loadCheckpoint, saveCheckpoint

方法详细资料

partition

int[] partition(T record,
                int numPartition)

Given a record and downstream partitions, determine which partition(s) should receive the record.

参数:

record - The record.

numPartition - num of partitions

返回:

IDs of the downstream partitions that should receive the record.