org.apache.flink.streaming.api.functions.python

类 PartitionCustomKeySelector

java.lang.Object

org.apache.flink.streaming.api.functions.python.PartitionCustomKeySelector

所有已实现的接口:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.java.functions.KeySelector<org.apache.flink.types.Row,Integer>

@Internal
public class PartitionCustomKeySelector
extends Object
implements org.apache.flink.api.java.functions.KeySelector<org.apache.flink.types.Row,Integer>

The PartitionCustomKeySelector will return the first field of the input row value. The value of the first field is the desired partition index which is computed according to user defined partitioner and keySelector function.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
PartitionCustomKeySelector()

方法概要

限定符和类型	方法和说明
Integer	getKey(org.apache.flink.types.Row value)

从类继承的方法 java.lang.Object

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

构造器详细资料

PartitionCustomKeySelector

public PartitionCustomKeySelector()

方法详细资料

getKey

public Integer getKey(org.apache.flink.types.Row value)
               throws Exception

指定者:

getKey 在接口中 org.apache.flink.api.java.functions.KeySelector<org.apache.flink.types.Row,Integer>

抛出:

Exception