Package org.apache.beam.runners.twister2.translators.functions

Class GroupByWindowFunction<K,V,W extends BoundedWindow>

java.lang.Object

org.apache.beam.runners.twister2.translators.functions.GroupByWindowFunction<K,V,W>

All Implemented Interfaces:

edu.iu.dsc.tws.api.compute.modifiers.Closable, edu.iu.dsc.tws.api.tset.fn.FlatMapFunc<WindowedValue<KV<K,Iterable<V>>>,KV<K,Iterable<WindowedValue<V>>>>, edu.iu.dsc.tws.api.tset.fn.TFunction<WindowedValue<KV<K,Iterable<V>>>,KV<K,Iterable<WindowedValue<V>>>>, Serializable

public class GroupByWindowFunction<K,V,W extends BoundedWindow>
extends Object
implements edu.iu.dsc.tws.api.tset.fn.FlatMapFunc<WindowedValue<KV<K,Iterable<V>>>,KV<K,Iterable<WindowedValue<V>>>>

GroupBy window function.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
GroupByWindowFunction()
GroupByWindowFunction(WindowingStrategy<?,W> windowingStrategy, org.apache.beam.runners.core.SystemReduceFn<K,V,Iterable<V>,Iterable<V>,W> reduceFn, PipelineOptions options)

Method Summary

Modifier and Type	Method	Description
void	flatMap(KV<K,Iterable<WindowedValue<V>>> kIteratorKV, edu.iu.dsc.tws.api.tset.fn.RecordCollector<WindowedValue<KV<K,Iterable<V>>>> collector)
void	prepare(edu.iu.dsc.tws.api.tset.TSetContext context)
protected Object	readResolve()

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.iu.dsc.tws.api.compute.modifiers.Closable

reset

Methods inherited from interface edu.iu.dsc.tws.api.tset.fn.TFunction

close

Constructor Details

GroupByWindowFunction

public GroupByWindowFunction()

GroupByWindowFunction

public GroupByWindowFunction(WindowingStrategy<?,W> windowingStrategy,
 org.apache.beam.runners.core.SystemReduceFn<K,V,Iterable<V>,Iterable<V>,W> reduceFn,
 PipelineOptions options)

Method Details

flatMap

public void flatMap(KV<K,Iterable<WindowedValue<V>>> kIteratorKV,
 edu.iu.dsc.tws.api.tset.fn.RecordCollector<WindowedValue<KV<K,Iterable<V>>>> collector)

Specified by:

flatMap in interface edu.iu.dsc.tws.api.tset.fn.FlatMapFunc<K,V>

prepare

public void prepare(edu.iu.dsc.tws.api.tset.TSetContext context)

Specified by:

prepare in interface edu.iu.dsc.tws.api.tset.fn.TFunction<K,V>

readResolve

protected Object readResolve()
                      throws ObjectStreamException

Throws:

ObjectStreamException