org.apache.flink.hadoopcompatibility.mapreduce.example

Class WordCount.HadoopDatatypeMapper

java.lang.Object

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

org.apache.flink.api.common.functions.RichMapFunction<org.apache.flink.api.java.tuple.Tuple2<String,Integer>,org.apache.flink.api.java.tuple.Tuple2<org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>>

org.apache.flink.hadoopcompatibility.mapreduce.example.WordCount.HadoopDatatypeMapper

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.MapFunction<org.apache.flink.api.java.tuple.Tuple2<String,Integer>,org.apache.flink.api.java.tuple.Tuple2<org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>>, org.apache.flink.api.common.functions.RichFunction

Enclosing class:

WordCount

public static final class WordCount.HadoopDatatypeMapper
extends org.apache.flink.api.common.functions.RichMapFunction<org.apache.flink.api.java.tuple.Tuple2<String,Integer>,org.apache.flink.api.java.tuple.Tuple2<org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>>

Converts Java data types to Hadoop Writables.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
WordCount.HadoopDatatypeMapper()

Method Summary

Methods

Modifier and Type	Method and Description
org.apache.flink.api.java.tuple.Tuple2<org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>	map(org.apache.flink.api.java.tuple.Tuple2<String,Integer> value)

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

WordCount.HadoopDatatypeMapper

public WordCount.HadoopDatatypeMapper()

Method Detail

map

public org.apache.flink.api.java.tuple.Tuple2<org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable> map(org.apache.flink.api.java.tuple.Tuple2<String,Integer> value)
                                                                                                       throws Exception

Specified by:

map in interface org.apache.flink.api.common.functions.MapFunction<org.apache.flink.api.java.tuple.Tuple2<String,Integer>,org.apache.flink.api.java.tuple.Tuple2<org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>>

Specified by:

map in class org.apache.flink.api.common.functions.RichMapFunction<org.apache.flink.api.java.tuple.Tuple2<String,Integer>,org.apache.flink.api.java.tuple.Tuple2<org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>>

Throws:

Exception