Module org.apache.arrow.adapter.avro

Package org.apache.arrow.adapter.avro.producers

Class AvroStructProducer

java.lang.Object

org.apache.arrow.adapter.avro.producers.BaseAvroProducer<StructVector>

org.apache.arrow.adapter.avro.producers.AvroStructProducer

All Implemented Interfaces:

Producer<StructVector>

public class AvroStructProducer
extends BaseAvroProducer<StructVector>

Producer which produces nested record type values to avro encoder. Read the data from StructVector.

Field Summary

Fields inherited from class org.apache.arrow.adapter.avro.producers.BaseAvroProducer

currentIndex, vector

Constructor Summary

Constructors

Constructor	Description
AvroStructProducer(StructVector vector, Producer<? extends FieldVector>[] delegates)	Instantiate a AvroStructProducer.

Method Summary

Modifier and Type	Method	Description
void	produce(org.apache.avro.io.Encoder encoder)	Produce a specific type value from the vector and write it to avro encoder.
void	resetValueVector(StructVector vector)	Reset the vector within producer.
void	setPosition(int index)	Sets the current index for this producer against the underlying vector.
void	skipNull()	Skip null value in the vector by setting reader position + 1.

Methods inherited from class org.apache.arrow.adapter.avro.producers.BaseAvroProducer

getVector

Methods inherited from class java.lang.Object

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

Constructor Details

AvroStructProducer

public AvroStructProducer(StructVector vector,
 Producer<? extends FieldVector>[] delegates)

Instantiate a AvroStructProducer.

Method Details

produce

public void produce(org.apache.avro.io.Encoder encoder)
             throws IOException

Description copied from interface: Producer

Produce a specific type value from the vector and write it to avro encoder.

Parameters:

encoder - avro encoder to write data

Throws:

IOException - on error

skipNull

public void skipNull()

Description copied from interface: Producer

Skip null value in the vector by setting reader position + 1.

Specified by:

skipNull in interface Producer<StructVector>

Overrides:

skipNull in class BaseAvroProducer<StructVector>

setPosition

public void setPosition(int index)

Description copied from class: BaseAvroProducer

Sets the current index for this producer against the underlying vector.

For a vector of length N, the valid range is [0, N] inclusive. Setting index = N signifies that no further data is available for production (this is the state the produce will be in when production for the current vector is complete).

Specified by:

setPosition in interface Producer<StructVector>

Overrides:

setPosition in class BaseAvroProducer<StructVector>

Parameters:

index - New current index for the producer

resetValueVector

public void resetValueVector(StructVector vector)

Description copied from interface: Producer

Reset the vector within producer.

Specified by:

resetValueVector in interface Producer<StructVector>

Overrides:

resetValueVector in class BaseAvroProducer<StructVector>