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

Class StringAgg.StringAggByte

java.lang.Object

org.apache.beam.sdk.transforms.Combine.CombineFn<byte[],java.lang.String,byte[]>

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

All Implemented Interfaces:

java.io.Serializable, org.apache.beam.sdk.transforms.CombineFnBase.GlobalCombineFn<byte[],java.lang.String,byte[]>, org.apache.beam.sdk.transforms.display.HasDisplayData

Enclosing class:

StringAgg

public static class StringAgg.StringAggByte
extends org.apache.beam.sdk.transforms.Combine.CombineFn<byte[],java.lang.String,byte[]>

A Combine.CombineFn that aggregates bytes with a byte array as delimiter.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
StringAggByte(byte[] delimiter)

Method Summary

Modifier and Type	Method and Description
java.lang.String	addInput(java.lang.String mutableAccumulator, byte[] input)
java.lang.String	createAccumulator()
byte[]	extractOutput(java.lang.String output)
java.lang.String	mergeAccumulators(java.lang.Iterable<java.lang.String> accumList)

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

StringAggByte

public StringAggByte(byte[] delimiter)

Method Detail

createAccumulator

public java.lang.String createAccumulator()

Specified by:

createAccumulator in class org.apache.beam.sdk.transforms.Combine.CombineFn<byte[],java.lang.String,byte[]>

addInput

public java.lang.String addInput(java.lang.String mutableAccumulator,
                                 byte[] input)

Specified by:

addInput in class org.apache.beam.sdk.transforms.Combine.CombineFn<byte[],java.lang.String,byte[]>

mergeAccumulators

public java.lang.String mergeAccumulators(java.lang.Iterable<java.lang.String> accumList)

Specified by:

mergeAccumulators in class org.apache.beam.sdk.transforms.Combine.CombineFn<byte[],java.lang.String,byte[]>

extractOutput

public byte[] extractOutput(java.lang.String output)

Specified by:

extractOutput in class org.apache.beam.sdk.transforms.Combine.CombineFn<byte[],java.lang.String,byte[]>