org.apache.iceberg.avro

Class NameMappingDatumReader<D>

java.lang.Object

org.apache.iceberg.avro.NameMappingDatumReader<D>

Type Parameters:

D - Java class of datums produced by this reader

All Implemented Interfaces:

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

public class NameMappingDatumReader<D>
extends java.lang.Object
implements org.apache.avro.io.DatumReader<D>, SupportsRowPosition

A delegating DatumReader that applies a name mapping to a file schema to enable reading Avro files that were written without field IDs.

Constructor Summary

Constructors

Constructor and Description
NameMappingDatumReader(NameMapping nameMapping, org.apache.avro.io.DatumReader<D> wrapped)

Method Summary

Modifier and Type	Method and Description
D	read(D reuse, org.apache.avro.io.Decoder in)
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

NameMappingDatumReader

public NameMappingDatumReader(NameMapping nameMapping,
                              org.apache.avro.io.DatumReader<D> wrapped)

Method Detail

setSchema

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

Specified by:

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

read

public D read(D reuse,
              org.apache.avro.io.Decoder in)
       throws java.io.IOException

Specified by:

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

Throws:

java.io.IOException

setRowPositionSupplier

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

Specified by:

setRowPositionSupplier in interface SupportsRowPosition