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

Class DoFnFunction<OT,IT>

java.lang.Object

org.apache.beam.runners.twister2.translators.functions.DoFnFunction<OT,IT>

All Implemented Interfaces:

ComputeCollectorFunc<RawUnionValue,java.util.Iterator<<any>>>, TFunction<RawUnionValue,java.util.Iterator<<any>>>, java.io.Serializable

public class DoFnFunction<OT,IT>
extends java.lang.Object
implements ComputeCollectorFunc<RawUnionValue,java.util.Iterator<<any>>>

DoFn function.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DoFnFunction(Twister2TranslationContext context, <any> doFn, <any> inputCoder, java.util.Map<<any>,<any>> outputCoders, java.util.List<<any>> sideOutputs, <any> windowingStrategy, java.util.Map<<any>,<any>> sideInputs, <any> mainOutput, DoFnSchemaInformation doFnSchemaInformation, java.util.Map<<any>,java.lang.Integer> outputMap)

Method Summary

Modifier and Type	Method and Description
void	compute(java.util.Iterator<<any>> input, RecordCollector<RawUnionValue> output)
java.util.Set<java.lang.String>	getSideInputKeys() get the tag id's of all the keys
void	prepare(TSetContext context) Prepare the function.

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, end

Constructor Detail

DoFnFunction

public DoFnFunction(Twister2TranslationContext context,
                    <any> doFn,
                    <any> inputCoder,
                    java.util.Map<<any>,<any>> outputCoders,
                    java.util.List<<any>> sideOutputs,
                    <any> windowingStrategy,
                    java.util.Map<<any>,<any>> sideInputs,
                    <any> mainOutput,
                    DoFnSchemaInformation doFnSchemaInformation,
                    java.util.Map<<any>,java.lang.Integer> outputMap)

Method Detail

getSideInputKeys

public java.util.Set<java.lang.String> getSideInputKeys()

get the tag id's of all the keys

Returns:

A Set of String key values

prepare

public void prepare(TSetContext context)

Description copied from interface: TFunction

Prepare the function. Use this context in case you need to add/get inputs

Specified by:

prepare in interface TFunction<RawUnionValue,java.util.Iterator<<any>>>

Parameters:

context - CONTEXT

compute

public void compute(java.util.Iterator<<any>> input,
                    RecordCollector<RawUnionValue> output)

Specified by:

compute in interface ComputeCollectorFunc<RawUnionValue,java.util.Iterator<<any>>>