org.apache.avro.reflect

Class ReflectData.AllowNull

java.lang.Object

org.apache.avro.generic.GenericData

org.apache.avro.specific.SpecificData

org.apache.avro.reflect.ReflectData

org.apache.avro.reflect.ReflectData.AllowNull

Enclosing class:

ReflectData

public static class ReflectData.AllowNull
extends ReflectData

ReflectData implementation that permits null field values. The schema generated for each field is a union of its declared type and null.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.avro.reflect.ReflectData

ReflectData.AllowNull

Nested classes/interfaces inherited from class org.apache.avro.specific.SpecificData

SpecificData.SchemaConstructable

Nested classes/interfaces inherited from class org.apache.avro.generic.GenericData

GenericData.Array<T>, GenericData.EnumSymbol, GenericData.Fixed, GenericData.InstanceSupplier, GenericData.Record, GenericData.StringType

Field Summary

Fields inherited from class org.apache.avro.specific.SpecificData

RESERVED_WORDS, stringableClasses

Fields inherited from class org.apache.avro.generic.GenericData

FAST_READER_PROP, STRING_PROP, STRING_TYPE_STRING

Constructor Summary

Constructors

Constructor and Description
AllowNull()

Method Summary

Modifier and Type	Method and Description
protected Schema	createFieldSchema(Field field, Map<String,Schema> names) Create a schema for a field.
static ReflectData.AllowNull	get() Return the singleton instance.

Methods inherited from class org.apache.avro.reflect.ReflectData

addStringable, compare, createDatumReader, createDatumReader, createDatumWriter, createFixed, createSchema, createSchemaDefaultValue, getArrayAsCollection, getClass, getField, getField, getOrCreateDefaultValue, getOrCreateDefaultValue, getProtocol, getRecordSchema, getRecordState, isArray, isBytes, isMap, isRecord, isStringable, makeNullable, newRecord, setDefaultGeneratedValue, setDefaultsGenerated, setField, setField, useCustomCoders, validate

Methods inherited from class org.apache.avro.specific.SpecificData

createEnum, createString, getClassName, getDecoder, getEncoder, getEnumSchema, getForClass, getForSchema, getNewRecordSupplier, getSchema, getSchemaName, isEnum, isStringType, newInstance, setCustomCoders, unmangle

Methods inherited from class org.apache.avro.generic.GenericData

addLogicalTypeConversion, compare, createFixed, deepCopy, getClassLoader, getConversionByClass, getConversionByClass, getConversionFor, getConversions, getDefaultValue, getFastReaderBuilder, getFixedSchema, getPrimitiveTypeCache, hashCode, hashCodeAdd, induce, instanceOf, isBoolean, isDouble, isFastReaderEnabled, isFixed, isFloat, isInteger, isLong, isString, newArray, newMap, resolveUnion, setFastReaderEnabled, setStringType, toString, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

AllowNull

public AllowNull()

Method Detail

get

public static ReflectData.AllowNull get()

Return the singleton instance.

createFieldSchema

protected Schema createFieldSchema(Field field,
                                   Map<String,Schema> names)

Description copied from class: ReflectData

Create a schema for a field.

Overrides:

createFieldSchema in class ReflectData