Interface | Description |
---|---|
LogicalTypes.LogicalTypeFactory | |
SchemaValidationStrategy |
An interface for validating the compatibility of a single schema against
another.
|
SchemaValidator |
A SchemaValidator has one method, which validates that a
Schema is
compatible with the other schemas provided. |
Class | Description |
---|---|
Conversion<T> |
Conversion between generic and logical type instances.
|
Conversions | |
Conversions.DecimalConversion | |
Conversions.UUIDConversion | |
JsonProperties |
Base class for objects that have JSON-valued properties.
|
JsonProperties.Null | |
LogicalType |
Logical types provides an opt-in way to extend Avro's types.
|
LogicalTypes | |
LogicalTypes.Date |
Date represents a date without a time
|
LogicalTypes.Decimal |
Decimal represents arbitrary-precision fixed-scale decimal numbers
|
LogicalTypes.TimeMicros |
TimeMicros represents a time in microseconds without a date
|
LogicalTypes.TimeMillis |
TimeMillis represents a time in milliseconds without a date
|
LogicalTypes.TimestampMicros |
TimestampMicros represents a date and time in microseconds
|
LogicalTypes.TimestampMillis |
TimestampMillis represents a date and time in milliseconds
|
Protocol |
A set of messages forming an application protocol.
|
Schema |
An abstract data type.
|
Schema.Field |
A field within a record.
|
Schema.Parser |
A parser for JSON-format schemas.
|
SchemaBuilder |
A fluent interface for building
Schema instances. |
SchemaBuilder.ArrayBuilder<R> |
Builds an Avro Array type with optional properties.
|
SchemaBuilder.ArrayDefault<R> |
Choose whether to use a default value for the field or not.
|
SchemaBuilder.BaseFieldTypeBuilder<R> |
A special Builder for Record fields.
|
SchemaBuilder.BaseTypeBuilder<R> |
A common API for building types within a context.
|
SchemaBuilder.BooleanBuilder<R> |
Builds an Avro boolean type with optional properties.
|
SchemaBuilder.BooleanDefault<R> |
Choose whether to use a default value for the field or not.
|
SchemaBuilder.BytesBuilder<R> |
Builds an Avro bytes type with optional properties.
|
SchemaBuilder.BytesDefault<R> |
Choose whether to use a default value for the field or not.
|
SchemaBuilder.DoubleBuilder<R> |
Builds an Avro double type with optional properties.
|
SchemaBuilder.DoubleDefault<R> |
Choose whether to use a default value for the field or not.
|
SchemaBuilder.EnumBuilder<R> |
Builds an Avro Enum type with optional properties, namespace, doc, and
aliases.
|
SchemaBuilder.EnumDefault<R> |
Choose whether to use a default value for the field or not.
|
SchemaBuilder.FieldAssembler<R> | |
SchemaBuilder.FieldBuilder<R> |
Builds a Field in the context of a
SchemaBuilder.FieldAssembler . |
SchemaBuilder.FieldDefault<R,S extends SchemaBuilder.FieldDefault<R,S>> |
Abstract base class for field defaults.
|
SchemaBuilder.FieldTypeBuilder<R> |
FieldTypeBuilder adds
SchemaBuilder.FieldTypeBuilder.unionOf() , SchemaBuilder.FieldTypeBuilder.nullable() , and SchemaBuilder.FieldTypeBuilder.optional()
to BaseFieldTypeBuilder. |
SchemaBuilder.FixedBuilder<R> |
Builds an Avro Fixed type with optional properties, namespace, doc, and
aliases.
|
SchemaBuilder.FixedDefault<R> |
Choose whether to use a default value for the field or not.
|
SchemaBuilder.FloatBuilder<R> |
Builds an Avro float type with optional properties.
|
SchemaBuilder.FloatDefault<R> |
Choose whether to use a default value for the field or not.
|
SchemaBuilder.GenericDefault<R> | |
SchemaBuilder.IntBuilder<R> |
Builds an Avro int type with optional properties.
|
SchemaBuilder.IntDefault<R> |
Choose whether to use a default value for the field or not.
|
SchemaBuilder.LongBuilder<R> |
Builds an Avro long type with optional properties.
|
SchemaBuilder.LongDefault<R> |
Choose whether to use a default value for the field or not.
|
SchemaBuilder.MapBuilder<R> |
Builds an Avro Map type with optional properties.
|
SchemaBuilder.MapDefault<R> |
Choose whether to use a default value for the field or not.
|
SchemaBuilder.NamedBuilder<S extends SchemaBuilder.NamedBuilder<S>> |
An abstract type that provides builder methods for configuring the name,
doc, and aliases of all Avro types that have names (fields, Fixed, Record,
and Enum).
|
SchemaBuilder.NamespacedBuilder<R,S extends SchemaBuilder.NamespacedBuilder<R,S>> |
An abstract type that provides builder methods for configuring the
namespace for all Avro types that have namespaces (Fixed, Record, and
Enum).
|
SchemaBuilder.NullBuilder<R> |
Builds an Avro null type with optional properties.
|
SchemaBuilder.NullDefault<R> |
Choose whether to use a default value for the field or not.
|
SchemaBuilder.PropBuilder<S extends SchemaBuilder.PropBuilder<S>> |
An abstract builder for all Avro types.
|
SchemaBuilder.RecordBuilder<R> | |
SchemaBuilder.RecordDefault<R> |
Choose whether to use a default value for the field or not.
|
SchemaBuilder.StringBldr<R> |
Builds an Avro string type with optional properties.
|
SchemaBuilder.StringDefault<R> |
Choose whether to use a default value for the field or not.
|
SchemaBuilder.TypeBuilder<R> |
A Builder for creating any Avro schema type.
|
SchemaBuilder.UnionAccumulator<R> |
Accumulates all of the types in a union.
|
SchemaBuilder.UnionFieldTypeBuilder<R> |
Builder for a union field.
|
SchemaCompatibility |
Evaluate the compatibility between a reader schema and a writer schema.
|
SchemaCompatibility.SchemaPairCompatibility |
Provides information about the compatibility of a single reader and writer schema pair.
|
SchemaNormalization |
Collection of static methods for generating the cannonical form of
schemas (see
SchemaNormalization.toParsingForm(org.apache.avro.Schema) ) -- and fingerprints of cannonical
forms (SchemaNormalization.fingerprint(java.lang.String, byte[]) ). |
SchemaValidatorBuilder |
A Builder for creating SchemaValidators.
|
ValidateAll |
A
SchemaValidator for validating the provided schema against all
schemas in the Iterable in ValidateAll.validate(Schema, Iterable) . |
ValidateLatest |
A
SchemaValidator for validating the provided schema against the
first Schema in the iterable in ValidateLatest.validate(Schema, Iterable) . |
Enum | Description |
---|---|
Schema.Field.Order |
How values of this field should be ordered when sorting records.
|
Schema.Type |
The type of a schema.
|
SchemaCompatibility.SchemaCompatibilityType |
Identifies the type of a schema compatibility result.
|
Exception | Description |
---|---|
AvroRemoteException |
Base class for exceptions thrown to client by server.
|
AvroRuntimeException |
Base Avro exception.
|
AvroTypeException |
Thrown when an illegal type is used.
|
SchemaBuilderException |
Thrown for errors building schemas.
|
SchemaParseException |
Thrown for errors parsing schemas and protocols.
|
SchemaValidationException |
Thrown when
SchemaValidator fails to validate a schema. |
UnresolvedUnionException |
Thrown when the expected contents of a union cannot be resolved.
|
A Schema
provides an abstract definition of
a data type.
The in-memory representation of data is determined by DatumReader
and DatumWriter
implementations. Generic
implementations are provided in the org.apache.avro.generic
package. A compiler
can generate specific java classes and interfaces for
schemas and protocols. Schemas may be automatically generated for
existing Java classes by reflection using the org.apache.avro.reflect
package.
Data of a given schema is always serialized identically, regardless
of its in-memory representation, by traversing the schema and
writing leaf values from the data structure with a Encoder
. Deserializing similarly proceeds by
traversing the schema, reading leaf values with a Decoder
and storing them in an in-memory data
structure.
Copyright © 2009–2017 The Apache Software Foundation. All rights reserved.