org.apache.beam.sdk.schemas

Class AvroRecordSchema

java.lang.Object

org.apache.beam.sdk.schemas.GetterBasedSchemaProvider

org.apache.beam.sdk.schemas.AvroRecordSchema

All Implemented Interfaces:

java.io.Serializable, SchemaProvider

public class AvroRecordSchema
extends GetterBasedSchemaProvider

A SchemaProvider for AVRO generated SpecificRecords and POJOs.

This provider infers a schema from generated SpecificRecord objects, and creates schemas and rows that bind to the appropriate fields. This provider also infers schemas from Java POJO objects, creating a schema that matches that inferred by the AVRO libraries.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AvroRecordSchema()

Method Summary

Modifier and Type	Method and Description
FieldValueGetterFactory	fieldValueGetterFactory() Implementing class should override to return a getter factory.
FieldValueTypeInformationFactory	fieldValueTypeInformationFactory() Implementing class should override to return a type-information factory.
<T> Schema	schemaFor(TypeDescriptor<T> typeDescriptor) Lookup a schema for the given type.
UserTypeCreatorFactory	schemaTypeCreatorFactory() Implementing class should override to return a constructor factory.

Methods inherited from class org.apache.beam.sdk.schemas.GetterBasedSchemaProvider

fromRowFunction, toRowFunction

Methods inherited from class java.lang.Object

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

Constructor Detail

AvroRecordSchema

public AvroRecordSchema()

Method Detail

schemaFor

public <T> Schema schemaFor(TypeDescriptor<T> typeDescriptor)

Description copied from interface: SchemaProvider

Lookup a schema for the given type. If no schema exists, returns null.

fieldValueGetterFactory

public FieldValueGetterFactory fieldValueGetterFactory()

Description copied from class: GetterBasedSchemaProvider

Implementing class should override to return a getter factory.

schemaTypeCreatorFactory

public UserTypeCreatorFactory schemaTypeCreatorFactory()

Description copied from class: GetterBasedSchemaProvider

Implementing class should override to return a constructor factory.

fieldValueTypeInformationFactory

public FieldValueTypeInformationFactory fieldValueTypeInformationFactory()

Description copied from class: GetterBasedSchemaProvider

Implementing class should override to return a type-information factory.