org.apache.crunch.lib.sort

Class SortFns.AvroGenericFn<V extends Tuple>

java.lang.Object

org.apache.crunch.DoFn<S,T>

org.apache.crunch.MapFn<V,org.apache.avro.generic.GenericRecord>

org.apache.crunch.lib.sort.SortFns.AvroGenericFn<V>

All Implemented Interfaces:

Serializable

Enclosing class:

SortFns

public static class SortFns.AvroGenericFn<V extends Tuple>
extends MapFn<V,org.apache.avro.generic.GenericRecord>

Pulls a composite set of keys from an Avro GenericRecord instance.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AvroGenericFn(int[] indices, org.apache.avro.Schema schema)

Method Summary

Modifier and Type	Method and Description
void	initialize() Initialize this DoFn.
org.apache.avro.generic.GenericRecord	map(V input) Maps the given input into an instance of the output type.

Methods inherited from class org.apache.crunch.MapFn

process, scaleFactor

Methods inherited from class org.apache.crunch.DoFn

cleanup, configure, disableDeepCopy, setConfiguration, setContext

Methods inherited from class java.lang.Object

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

Constructor Detail

AvroGenericFn

public AvroGenericFn(int[] indices,
                     org.apache.avro.Schema schema)

Method Detail

initialize

public void initialize()

Description copied from class: DoFn

Initialize this DoFn. This initialization will happen before the actual DoFn.process(Object, Emitter) is triggered. Subclasses may override this method to do appropriate initialization.

Called during the setup of the job instance this DoFn is associated with.

Overrides:

initialize in class DoFn<V extends Tuple,org.apache.avro.generic.GenericRecord>

map

public org.apache.avro.generic.GenericRecord map(V input)

Description copied from class: MapFn

Maps the given input into an instance of the output type.

Specified by:

map in class MapFn<V extends Tuple,org.apache.avro.generic.GenericRecord>