org.apache.beam.sdk.extensions.avro.schemas

Class AvroRecordSchema

java.lang.Object

org.apache.beam.sdk.schemas.GetterBasedSchemaProvider

org.apache.beam.sdk.schemas.GetterBasedSchemaProviderV2

org.apache.beam.sdk.extensions.avro.schemas.AvroRecordSchema

All Implemented Interfaces:

java.io.Serializable, SchemaProvider

public class AvroRecordSchema
extends GetterBasedSchemaProviderV2

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
java.util.List<FieldValueGetter>	fieldValueGetters(TypeDescriptor<?> targetTypeDescriptor, Schema schema) Delegates to the GetterBasedSchemaProvider.fieldValueGetters(Class, Schema) for backwards compatibility, override it if you want to use the richer type signature contained in the TypeDescriptor not subject to the type erasure.
java.util.List<FieldValueTypeInformation>	fieldValueTypeInformations(TypeDescriptor<?> targetTypeDescriptor, Schema schema) Delegates to the GetterBasedSchemaProvider.fieldValueTypeInformations(Class, Schema) for backwards compatibility, override it if you want to use the richer type signature contained in the TypeDescriptor not subject to the type erasure.
<T> Schema	schemaFor(TypeDescriptor<T> typeDescriptor) Lookup a schema for the given type.
SchemaUserTypeCreator	schemaTypeCreator(TypeDescriptor<?> targetTypeDescriptor, Schema schema) Delegates to the GetterBasedSchemaProvider.schemaTypeCreator(Class, Schema) for backwards compatibility, override it if you want to use the richer type signature contained in the TypeDescriptor not subject to the type erasure.

Methods inherited from class org.apache.beam.sdk.schemas.GetterBasedSchemaProviderV2

fieldValueGetters, fieldValueTypeInformations, schemaTypeCreator

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

equals, fromRowFunction, hashCode, toRowFunction

Methods inherited from class java.lang.Object

clone, finalize, getClass, 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.

fieldValueGetters

public java.util.List<FieldValueGetter> fieldValueGetters(TypeDescriptor<?> targetTypeDescriptor,
                                                          Schema schema)

Description copied from class: GetterBasedSchemaProvider

Delegates to the GetterBasedSchemaProvider.fieldValueGetters(Class, Schema) for backwards compatibility, override it if you want to use the richer type signature contained in the TypeDescriptor not subject to the type erasure.

Specified by:

fieldValueGetters in class GetterBasedSchemaProviderV2

fieldValueTypeInformations

public java.util.List<FieldValueTypeInformation> fieldValueTypeInformations(TypeDescriptor<?> targetTypeDescriptor,
                                                                            Schema schema)

Description copied from class: GetterBasedSchemaProvider

Delegates to the GetterBasedSchemaProvider.fieldValueTypeInformations(Class, Schema) for backwards compatibility, override it if you want to use the richer type signature contained in the TypeDescriptor not subject to the type erasure.

Specified by:

fieldValueTypeInformations in class GetterBasedSchemaProviderV2

schemaTypeCreator

public SchemaUserTypeCreator schemaTypeCreator(TypeDescriptor<?> targetTypeDescriptor,
                                               Schema schema)

Description copied from class: GetterBasedSchemaProvider

Delegates to the GetterBasedSchemaProvider.schemaTypeCreator(Class, Schema) for backwards compatibility, override it if you want to use the richer type signature contained in the TypeDescriptor not subject to the type erasure.

Specified by:

schemaTypeCreator in class GetterBasedSchemaProviderV2