org.apache.flink.api.java.functions

Class RichFlatMapFunction<IN,OUT>

java.lang.Object

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

org.apache.flink.api.java.functions.RichFlatMapFunction<IN,OUT>

Type Parameters:

IN - Type of the input elements.

OUT - Type of the returned elements.

All Implemented Interfaces:

Serializable, FlatMapFunction<IN,OUT>, Function, RichFunction

Direct Known Subclasses:

FlatMapIterator

public abstract class RichFlatMapFunction<IN,OUT>
extends AbstractRichFunction
implements FlatMapFunction<IN,OUT>

Rich variant of the FlatMapFunction. As a RichFunction, it gives access to the RuntimeContext and provides setup and teardown methods: RichFunction.open(org.apache.flink.configuration.Configuration) and RichFunction.close().

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
RichFlatMapFunction()

Method Summary

Methods

Modifier and Type	Method and Description
abstract void	flatMap(IN value, Collector<OUT> out)

Methods inherited from class org.apache.flink.api.common.functions.AbstractRichFunction

close, getIterationRuntimeContext, getRuntimeContext, open, setRuntimeContext

Methods inherited from class java.lang.Object

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

Constructor Detail

RichFlatMapFunction

public RichFlatMapFunction()

Method Detail

flatMap

public abstract void flatMap(IN value,
           Collector<OUT> out)
                      throws Exception

Specified by:

flatMap in interface FlatMapFunction<IN,OUT>

Throws:

Exception