org.apache.beam.runners.samza.runtime

Class OpAdapter<InT,OutT,K>

java.lang.Object

org.apache.beam.runners.samza.runtime.OpAdapter<InT,OutT,K>

All Implemented Interfaces:

java.io.Serializable, org.apache.samza.operators.functions.AsyncFlatMapFunction<OpMessage<InT>,OpMessage<OutT>>, org.apache.samza.operators.functions.ClosableFunction, org.apache.samza.operators.functions.InitableFunction, org.apache.samza.operators.functions.ScheduledFunction<KeyedTimerData<K>,OpMessage<OutT>>, org.apache.samza.operators.functions.WatermarkFunction<OpMessage<OutT>>

public class OpAdapter<InT,OutT,K>
extends java.lang.Object
implements org.apache.samza.operators.functions.AsyncFlatMapFunction<OpMessage<InT>,OpMessage<OutT>>, org.apache.samza.operators.functions.WatermarkFunction<OpMessage<OutT>>, org.apache.samza.operators.functions.ScheduledFunction<KeyedTimerData<K>,OpMessage<OutT>>, java.io.Serializable

Adaptor class that runs a Samza Op for BEAM in the Samza AsyncFlatMapFunction. This class is initialized once for each Op within a Task for each Task.

See Also:

Serialized Form

Method Summary

Modifier and Type	Method and Description
static <InT,OutT,K> org.apache.samza.operators.functions.AsyncFlatMapFunction<OpMessage<InT>,OpMessage<OutT>>	adapt(Op<InT,OutT,K> op, TranslationContext ctx)
java.util.concurrent.CompletionStage<java.util.Collection<OpMessage<OutT>>>	apply(OpMessage<InT> message)
void	close()
java.lang.Long	getOutputWatermark()
void	init(org.apache.samza.context.Context context)
java.util.Collection<OpMessage<OutT>>	onCallback(KeyedTimerData<K> keyedTimerData, long time)
java.util.Collection<OpMessage<OutT>>	processWatermark(long time)
void	schedule(org.apache.samza.operators.Scheduler<KeyedTimerData<K>> timerRegistry)

Methods inherited from class java.lang.Object

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

Method Detail

adapt

public static <InT,OutT,K> org.apache.samza.operators.functions.AsyncFlatMapFunction<OpMessage<InT>,OpMessage<OutT>> adapt(Op<InT,OutT,K> op,
                                                                                                                           TranslationContext ctx)

init

public final void init(org.apache.samza.context.Context context)

Specified by:

init in interface org.apache.samza.operators.functions.InitableFunction

schedule

public final void schedule(org.apache.samza.operators.Scheduler<KeyedTimerData<K>> timerRegistry)

Specified by:

schedule in interface org.apache.samza.operators.functions.ScheduledFunction<KeyedTimerData<K>,OpMessage<OutT>>

apply

public java.util.concurrent.CompletionStage<java.util.Collection<OpMessage<OutT>>> apply(OpMessage<InT> message)

Specified by:

apply in interface org.apache.samza.operators.functions.AsyncFlatMapFunction<OpMessage<InT>,OpMessage<OutT>>

processWatermark

public java.util.Collection<OpMessage<OutT>> processWatermark(long time)

Specified by:

processWatermark in interface org.apache.samza.operators.functions.WatermarkFunction<OpMessage<OutT>>

getOutputWatermark

public java.lang.Long getOutputWatermark()

Specified by:

getOutputWatermark in interface org.apache.samza.operators.functions.WatermarkFunction<OpMessage<OutT>>

onCallback

public java.util.Collection<OpMessage<OutT>> onCallback(KeyedTimerData<K> keyedTimerData,
                                                        long time)

Specified by:

onCallback in interface org.apache.samza.operators.functions.ScheduledFunction<KeyedTimerData<K>,OpMessage<OutT>>

close

public void close()

Specified by:

close in interface org.apache.samza.operators.functions.ClosableFunction