Package org.apache.flink.table.runtime.operators.ml

Class MLPredictRunner

java.lang.Object

org.apache.flink.api.common.functions.AbstractRichFunction

org.apache.flink.streaming.api.functions.ProcessFunction<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>

org.apache.flink.table.runtime.operators.AbstractFunctionRunner

org.apache.flink.table.runtime.operators.ml.MLPredictRunner

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction

public class MLPredictRunner
extends AbstractFunctionRunner

Function runner for PredictFunction, which takes the generated function, instantiates it, and then calls its lifecycle methods.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.streaming.api.functions.ProcessFunction

org.apache.flink.streaming.api.functions.ProcessFunction.Context, org.apache.flink.streaming.api.functions.ProcessFunction.OnTimerContext

Field Summary

Fields

Modifier and Type	Field	Description
protected ListenableCollector<org.apache.flink.table.data.RowData>	collector

Fields inherited from class org.apache.flink.table.runtime.operators.AbstractFunctionRunner

fetcher

Constructor Summary

Constructors

Constructor	Description
MLPredictRunner(GeneratedFunction<org.apache.flink.api.common.functions.FlatMapFunction<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>> generatedFetcher, GeneratedCollector<ListenableCollector<org.apache.flink.table.data.RowData>> generatedCollector)

Method Summary

Modifier and Type	Method	Description
void	close()
void	open(org.apache.flink.api.common.functions.OpenContext openContext)
void	prepareCollector(org.apache.flink.table.data.RowData in, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
void	processElement(org.apache.flink.table.data.RowData in, org.apache.flink.streaming.api.functions.ProcessFunction.Context ctx, org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)

Methods inherited from class org.apache.flink.streaming.api.functions.ProcessFunction

onTimer

Methods inherited from class org.apache.flink.api.common.functions.AbstractRichFunction

getIterationRuntimeContext, getRuntimeContext, setRuntimeContext

Methods inherited from class java.lang.Object

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

Field Detail

collector

protected transient ListenableCollector<org.apache.flink.table.data.RowData> collector

Constructor Detail

MLPredictRunner

public MLPredictRunner(GeneratedFunction<org.apache.flink.api.common.functions.FlatMapFunction<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>> generatedFetcher,
                       GeneratedCollector<ListenableCollector<org.apache.flink.table.data.RowData>> generatedCollector)

Method Detail

open

public void open(org.apache.flink.api.common.functions.OpenContext openContext)
          throws Exception

Specified by:

open in interface org.apache.flink.api.common.functions.RichFunction

Overrides:

open in class AbstractFunctionRunner

Throws:

Exception

processElement

public void processElement(org.apache.flink.table.data.RowData in,
                           org.apache.flink.streaming.api.functions.ProcessFunction.Context ctx,
                           org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)
                    throws Exception

Specified by:

processElement in class org.apache.flink.streaming.api.functions.ProcessFunction<org.apache.flink.table.data.RowData,org.apache.flink.table.data.RowData>

Throws:

Exception

close

public void close()
           throws Exception

Specified by:

close in interface org.apache.flink.api.common.functions.RichFunction

Overrides:

close in class AbstractFunctionRunner

Throws:

Exception

prepareCollector

public void prepareCollector(org.apache.flink.table.data.RowData in,
                             org.apache.flink.util.Collector<org.apache.flink.table.data.RowData> out)