org.apache.flink.streaming.examples.twitter

Class TwitterStream.SelectEnglishAndTokenizeFlatMap

java.lang.Object

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

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

org.apache.flink.streaming.connectors.json.JSONParseFlatMap<String,String>

org.apache.flink.streaming.examples.twitter.TwitterStream.SelectEnglishAndTokenizeFlatMap

All Implemented Interfaces:

Serializable, FlatMapFunction<String,String>, Function, RichFunction

Enclosing class:

TwitterStream

public static class TwitterStream.SelectEnglishAndTokenizeFlatMap
extends JSONParseFlatMap<String,String>

Makes sentences from English tweets.

Implements a string tokenizer that splits sentences into words as a user-defined FlatMapFunction. The function takes a line (String) and splits it into multiple pairs in the form of "(word,1)" (Tuple2).

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SelectEnglishAndTokenizeFlatMap()

Method Summary

Modifier and Type	Method and Description
void	flatMap(String value, Collector<String> out) Select the language from the incoming JSON text

Methods inherited from class org.apache.flink.streaming.connectors.json.JSONParseFlatMap

get, getBoolean, getDouble, getInt, getLong, getString

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

SelectEnglishAndTokenizeFlatMap

public SelectEnglishAndTokenizeFlatMap()

Method Detail

flatMap

public void flatMap(String value,
                    Collector<String> out)
             throws Exception

Select the language from the incoming JSON text

Specified by:

flatMap in interface FlatMapFunction<String,String>

Specified by:

flatMap in class RichFlatMapFunction<String,String>

Throws:

Exception