Package org.apache.iceberg.data.avro

Class DataReader<T>

java.lang.Object

org.apache.iceberg.data.avro.DataReader<T>

All Implemented Interfaces:

org.apache.avro.io.DatumReader<T>, SupportsRowPosition

public class DataReader<T>
extends Object
implements org.apache.avro.io.DatumReader<T>, SupportsRowPosition

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DataReader(Schema expectedSchema, org.apache.avro.Schema readSchema, Map<Integer,?> idToConstant)

Method Summary

Modifier and Type	Method	Description
static <D> DataReader<D>	create(Schema expectedSchema, org.apache.avro.Schema readSchema)
static <D> DataReader<D>	create(Schema expectedSchema, org.apache.avro.Schema readSchema, Map<Integer,?> idToConstant)
protected ValueReader<?>	createStructReader(Types.StructType struct, List<ValueReader<?>> fields, Map<Integer,?> idToConstant)
T	read(T reuse, org.apache.avro.io.Decoder decoder)
void	setRowPositionSupplier(Supplier<Long> posSupplier)
void	setSchema(org.apache.avro.Schema newFileSchema)

Methods inherited from class java.lang.Object

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

Constructor Details

DataReader

protected DataReader(Schema expectedSchema,
 org.apache.avro.Schema readSchema,
 Map<Integer,?> idToConstant)

Method Details

create

public static <D> DataReader<D> create(Schema expectedSchema,
 org.apache.avro.Schema readSchema)

create

public static <D> DataReader<D> create(Schema expectedSchema,
 org.apache.avro.Schema readSchema,
 Map<Integer,?> idToConstant)

setSchema

public void setSchema(org.apache.avro.Schema newFileSchema)

Specified by:

setSchema in interface org.apache.avro.io.DatumReader<T>

read

public T read(T reuse,
 org.apache.avro.io.Decoder decoder)
       throws IOException

Specified by:

read in interface org.apache.avro.io.DatumReader<T>

Throws:

IOException

setRowPositionSupplier

public void setRowPositionSupplier(Supplier<Long> posSupplier)

Specified by:

setRowPositionSupplier in interface SupportsRowPosition

createStructReader

protected ValueReader<?> createStructReader(Types.StructType struct,
 List<ValueReader<?>> fields,
 Map<Integer,?> idToConstant)