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<org.apache.beam.sdk.util.WindowedValue<KV<K,java.lang.Iterable<V>>>,KV<K,java.lang.Iterable<org.apache.beam.sdk.util.WindowedValue<V>>>>, edu.iu.dsc.tws.api.tset.fn.TFunction<org.apache.beam.sdk.util.WindowedValue<KV<K,java.lang.Iterable<V>>>,KV<K,java.lang.Iterable<org.apache.beam.sdk.util.WindowedValue<V>>>>, java.io.Serializable

public class GroupByWindowFunction<K,V,W extends BoundedWindow>
extends java.lang.Object
implements edu.iu.dsc.tws.api.tset.fn.FlatMapFunc<org.apache.beam.sdk.util.WindowedValue<KV<K,java.lang.Iterable<V>>>,KV<K,java.lang.Iterable<org.apache.beam.sdk.util.WindowedValue<V>>>>

GroupBy window function.

See Also:

Serialized Form

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
void	flatMap(KV<K,java.lang.Iterable<org.apache.beam.sdk.util.WindowedValue<V>>> kIteratorKV, edu.iu.dsc.tws.api.tset.fn.RecordCollector<org.apache.beam.sdk.util.WindowedValue<KV<K,java.lang.Iterable<V>>>> collector)
void	prepare(edu.iu.dsc.tws.api.tset.TSetContext context)
protected java.lang.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.tset.fn.TFunction

close

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

reset

Constructor Detail

GroupByWindowFunction

public GroupByWindowFunction()

GroupByWindowFunction

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

Method Detail

flatMap

public void flatMap(KV<K,java.lang.Iterable<org.apache.beam.sdk.util.WindowedValue<V>>> kIteratorKV,
                    edu.iu.dsc.tws.api.tset.fn.RecordCollector<org.apache.beam.sdk.util.WindowedValue<KV<K,java.lang.Iterable<V>>>> collector)

Specified by:

flatMap in interface edu.iu.dsc.tws.api.tset.fn.FlatMapFunc<org.apache.beam.sdk.util.WindowedValue<KV<K,java.lang.Iterable<V>>>,KV<K,java.lang.Iterable<org.apache.beam.sdk.util.WindowedValue<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<org.apache.beam.sdk.util.WindowedValue<KV<K,java.lang.Iterable<V>>>,KV<K,java.lang.Iterable<org.apache.beam.sdk.util.WindowedValue<V>>>>

readResolve

protected java.lang.Object readResolve()
                                throws java.io.ObjectStreamException

Throws:

java.io.ObjectStreamException