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 java.lang.Object
implements org.apache.avro.io.DatumReader<T>, SupportsRowPosition

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and 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, java.util.Map<java.lang.Integer,?> idToConstant)
protected ValueReader<?>	createStructReader(Types.StructType struct, java.util.List<ValueReader<?>> fields, java.util.Map<java.lang.Integer,?> idToConstant)
T	read(T reuse, org.apache.avro.io.Decoder decoder)
void	setRowPositionSupplier(java.util.function.Supplier<java.lang.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 Detail

DataReader

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

Method Detail

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,
                                       java.util.Map<java.lang.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 java.io.IOException

Specified by:

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

Throws:

java.io.IOException

setRowPositionSupplier

public void setRowPositionSupplier(java.util.function.Supplier<java.lang.Long> posSupplier)

Specified by:

setRowPositionSupplier in interface SupportsRowPosition

createStructReader

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