org.apache.flink.api.java.operators.translation

类 KeyRemovingMapper<T,K>

java.lang.Object

org.apache.flink.api.common.functions.AbstractRichFunction

org.apache.flink.api.common.functions.RichMapFunction<org.apache.flink.api.java.tuple.Tuple2<K,T>,T>

org.apache.flink.api.java.operators.translation.KeyRemovingMapper<T,K>

类型参数:

T - type of values

K - type of keys

所有已实现的接口:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.MapFunction<org.apache.flink.api.java.tuple.Tuple2<K,T>,T>, org.apache.flink.api.common.functions.RichFunction

@Internal
public final class KeyRemovingMapper<T,K>
extends org.apache.flink.api.common.functions.RichMapFunction<org.apache.flink.api.java.tuple.Tuple2<K,T>,T>

Mapper that removes keys.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
KeyRemovingMapper()

方法概要

限定符和类型	方法和说明
T	map(org.apache.flink.api.java.tuple.Tuple2<K,T> value)

从类继承的方法 org.apache.flink.api.common.functions.AbstractRichFunction

close, getIterationRuntimeContext, getRuntimeContext, open, setRuntimeContext

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.api.common.functions.RichFunction

open

构造器详细资料

KeyRemovingMapper

public KeyRemovingMapper()

方法详细资料

map

public T map(org.apache.flink.api.java.tuple.Tuple2<K,T> value)

指定者:

map 在接口中 org.apache.flink.api.common.functions.MapFunction<org.apache.flink.api.java.tuple.Tuple2<K,T>,T>

指定者:

map 在类中 org.apache.flink.api.common.functions.RichMapFunction<org.apache.flink.api.java.tuple.Tuple2<K,T>,T>