org.apache.avro.mapred

Class AvroMapper<IN,OUT>

java.lang.Object

org.apache.hadoop.conf.Configured

org.apache.avro.mapred.AvroMapper<IN,OUT>

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.hadoop.conf.Configurable, org.apache.hadoop.mapred.JobConfigurable

public class AvroMapper<IN,OUT>
extends org.apache.hadoop.conf.Configured
implements org.apache.hadoop.mapred.JobConfigurable, Closeable

A mapper for Avro data.

Applications subclass this class and pass their subclass to AvroJob.setMapperClass(JobConf, Class), overriding map(Object, AvroCollector, Reporter).

Constructor Summary

Constructors

Constructor and Description
AvroMapper()

Method Summary

Modifier and Type	Method and Description
void	close() Subclasses can override this as desired.
void	configure(org.apache.hadoop.mapred.JobConf jobConf) Subclasses can override this as desired.
void	map(IN datum, AvroCollector<OUT> collector, org.apache.hadoop.mapred.Reporter reporter) Called with each map input datum.

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

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

Constructor Detail

AvroMapper

public AvroMapper()

Method Detail

map

public void map(IN datum,
                AvroCollector<OUT> collector,
                org.apache.hadoop.mapred.Reporter reporter)
         throws IOException

Called with each map input datum. By default, collects inputs.

Throws:

IOException

close

public void close()
           throws IOException

Subclasses can override this as desired.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

configure

public void configure(org.apache.hadoop.mapred.JobConf jobConf)

Subclasses can override this as desired.

Specified by:

configure in interface org.apache.hadoop.mapred.JobConfigurable