org.apache.beam.sdk.extensions.sql.impl.udaf

Class ArrayAgg.ArrayAggArray<T>

java.lang.Object

org.apache.beam.sdk.transforms.Combine.CombineFn<T,java.util.List<T>,java.util.List<T>>

org.apache.beam.sdk.extensions.sql.impl.udaf.ArrayAgg.ArrayAggArray<T>

All Implemented Interfaces:

java.io.Serializable, org.apache.beam.sdk.transforms.CombineFnBase.GlobalCombineFn<T,java.util.List<T>,java.util.List<T>>, org.apache.beam.sdk.transforms.display.HasDisplayData

Enclosing class:

ArrayAgg

public static class ArrayAgg.ArrayAggArray<T>
extends org.apache.beam.sdk.transforms.Combine.CombineFn<T,java.util.List<T>,java.util.List<T>>

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ArrayAggArray()

Method Summary

Modifier and Type	Method and Description
java.util.List<T>	addInput(java.util.List<T> accum, T input)
java.util.List<T>	createAccumulator()
@Nullable java.util.List<T>	extractOutput(java.util.List<T> accumulator)
java.util.List<T>	mergeAccumulators(java.lang.Iterable<java.util.List<T>> accums)

Methods inherited from class org.apache.beam.sdk.transforms.Combine.CombineFn

apply, compact, defaultValue, getInputType, getOutputType

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayAggArray

public ArrayAggArray()

Method Detail

createAccumulator

public java.util.List<T> createAccumulator()

Specified by:

createAccumulator in class org.apache.beam.sdk.transforms.Combine.CombineFn<T,java.util.List<T>,java.util.List<T>>

addInput

public java.util.List<T> addInput(java.util.List<T> accum,
                                  T input)

Specified by:

addInput in class org.apache.beam.sdk.transforms.Combine.CombineFn<T,java.util.List<T>,java.util.List<T>>

mergeAccumulators

public java.util.List<T> mergeAccumulators(java.lang.Iterable<java.util.List<T>> accums)

Specified by:

mergeAccumulators in class org.apache.beam.sdk.transforms.Combine.CombineFn<T,java.util.List<T>,java.util.List<T>>

extractOutput

public @Nullable java.util.List<T> extractOutput(java.util.List<T> accumulator)

Specified by:

extractOutput in class org.apache.beam.sdk.transforms.Combine.CombineFn<T,java.util.List<T>,java.util.List<T>>