org.apache.flink.hadoopcompatibility.mapred.wrapper

Class HadoopOutputCollector<KEY,VALUE>

java.lang.Object

org.apache.flink.hadoopcompatibility.mapred.wrapper.HadoopOutputCollector<KEY,VALUE>

All Implemented Interfaces:

org.apache.hadoop.mapred.OutputCollector<KEY,VALUE>

public final class HadoopOutputCollector<KEY,VALUE>
extends Object
implements org.apache.hadoop.mapred.OutputCollector<KEY,VALUE>

A Hadoop OutputCollector that wraps a Flink OutputCollector. On each call of collect() the data is forwarded to the wrapped Flink collector.

Constructor Summary

Constructors

Constructor and Description
HadoopOutputCollector()

Method Summary

Modifier and Type	Method and Description
void	collect(KEY key, VALUE val) Use the wrapped Flink collector to collect a key-value pair for Flink.
void	setFlinkCollector(org.apache.flink.util.Collector<org.apache.flink.api.java.tuple.Tuple2<KEY,VALUE>> flinkCollector) Set the wrapped Flink collector.

Methods inherited from class java.lang.Object

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

Constructor Detail

HadoopOutputCollector

public HadoopOutputCollector()

Method Detail

setFlinkCollector

public void setFlinkCollector(org.apache.flink.util.Collector<org.apache.flink.api.java.tuple.Tuple2<KEY,VALUE>> flinkCollector)

Set the wrapped Flink collector.

Parameters:

flinkCollector - The wrapped Flink OutputCollector.

collect

public void collect(KEY key,
                    VALUE val)
             throws IOException

Use the wrapped Flink collector to collect a key-value pair for Flink.

Specified by:

collect in interface org.apache.hadoop.mapred.OutputCollector<KEY,VALUE>

Parameters:

key - the key to collect

val - the value to collect

Throws:

IOException - unexpected of key or value in key-value pair.