org.apache.avro.io

Interface DatumReader<D>

All Known Subinterfaces:

FastReaderBuilder.FieldReader, FastReaderBuilder.ReusingFieldReader

All Known Implementing Classes:

FastReaderBuilder.MapReader, FastReaderBuilder.RecordReader, GenericDatumReader, Json.ObjectReader, ProtobufDatumReader, ReflectDatumReader, SpecificDatumReader, ThriftDatumReader

public interface DatumReader<D>

Read data of a schema.

Determines the in-memory data representation.

Method Summary

Modifier and Type	Method and Description
D	read(D reuse, Decoder in) Read a datum.
void	setSchema(Schema schema) Set the writer's schema.

Method Detail

setSchema

void setSchema(Schema schema)

Set the writer's schema.

read

D read(D reuse,
       Decoder in)
throws IOException

Read a datum. Traverse the schema, depth-first, reading all leaf values in the schema into a datum that is returned. If the provided datum is non-null it may be reused and returned.

Throws:

IOException