parquet.avro

Class AvroReadSupport<T extends org.apache.avro.generic.IndexedRecord>

java.lang.Object

parquet.hadoop.api.ReadSupport<T>

parquet.avro.AvroReadSupport<T>

public class AvroReadSupport<T extends org.apache.avro.generic.IndexedRecord>
extends ReadSupport<T>

Avro implementation of ReadSupport for Avro IndexedRecords which cover both Avro Specific and Generic. Users should use AvroParquetReader or AvroParquetInputFormat rather than using this class directly.

Nested Class Summary

Nested classes/interfaces inherited from class parquet.hadoop.api.ReadSupport

ReadSupport.ReadContext

Field Summary

Fields

Modifier and Type	Field and Description
static String	AVRO_DATA_SUPPLIER
static String	AVRO_REQUESTED_PROJECTION

Fields inherited from class parquet.hadoop.api.ReadSupport

PARQUET_READ_SCHEMA

Constructor Summary

Constructors

Constructor and Description
AvroReadSupport()

Method Summary

Methods

Modifier and Type	Method and Description
ReadSupport.ReadContext	init(org.apache.hadoop.conf.Configuration configuration, Map<String,String> keyValueMetaData, MessageType fileSchema)
RecordMaterializer<T>	prepareForRead(org.apache.hadoop.conf.Configuration configuration, Map<String,String> keyValueMetaData, MessageType fileSchema, ReadSupport.ReadContext readContext)
static void	setAvroDataSupplier(org.apache.hadoop.conf.Configuration configuration, Class<? extends AvroDataSupplier> clazz)
static void	setAvroReadSchema(org.apache.hadoop.conf.Configuration configuration, org.apache.avro.Schema avroReadSchema)
static void	setRequestedProjection(org.apache.hadoop.conf.Configuration configuration, org.apache.avro.Schema requestedProjection)

Methods inherited from class parquet.hadoop.api.ReadSupport

getSchemaForRead, getSchemaForRead, init

Methods inherited from class java.lang.Object

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

Field Detail

AVRO_REQUESTED_PROJECTION

public static String AVRO_REQUESTED_PROJECTION

AVRO_DATA_SUPPLIER

public static String AVRO_DATA_SUPPLIER

Constructor Detail

AvroReadSupport

public AvroReadSupport()

Method Detail

setRequestedProjection

public static void setRequestedProjection(org.apache.hadoop.conf.Configuration configuration,
                          org.apache.avro.Schema requestedProjection)

See Also:

AvroParquetInputFormat.setRequestedProjection(org.apache.hadoop.mapreduce.Job, org.apache.avro.Schema)

setAvroReadSchema

public static void setAvroReadSchema(org.apache.hadoop.conf.Configuration configuration,
                     org.apache.avro.Schema avroReadSchema)

See Also:

AvroParquetInputFormat.setAvroReadSchema(org.apache.hadoop.mapreduce.Job, org.apache.avro.Schema)

setAvroDataSupplier

public static void setAvroDataSupplier(org.apache.hadoop.conf.Configuration configuration,
                       Class<? extends AvroDataSupplier> clazz)

init

public ReadSupport.ReadContext init(org.apache.hadoop.conf.Configuration configuration,
                           Map<String,String> keyValueMetaData,
                           MessageType fileSchema)

Overrides:

init in class ReadSupport<T extends org.apache.avro.generic.IndexedRecord>

prepareForRead

public RecordMaterializer<T> prepareForRead(org.apache.hadoop.conf.Configuration configuration,
                                   Map<String,String> keyValueMetaData,
                                   MessageType fileSchema,
                                   ReadSupport.ReadContext readContext)

Specified by:

prepareForRead in class ReadSupport<T extends org.apache.avro.generic.IndexedRecord>