schema

package
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 Go to latest Published: Oct 11, 2021 License: MIT Imports: 5 Imported by: 0

Documentation

Overview

gogen-avro's internal representation of Avro schemas

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type ArrayField 

type ArrayField struct {
	// contains filtered or unexported fields
}

func NewArrayField 

func NewArrayField(itemType AvroType, definition map[string]interface{}) *ArrayField

func (*ArrayField) Attribute 

func (s *ArrayField) Attribute(name string) interface{}

func (*ArrayField) Children 

func (s *ArrayField) Children() []AvroType

func (*ArrayField) ConstructorMethod 

func (s *ArrayField) ConstructorMethod() string

func (*ArrayField) DefaultValue 

func (s *ArrayField) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*ArrayField) Definition 

func (s *ArrayField) Definition(scope map[QualifiedName]interface{}) (interface{}, error)

func (*ArrayField) GoType 

func (s *ArrayField) GoType() string

func (*ArrayField) IsReadableBy 

func (s *ArrayField) IsReadableBy(f AvroType) bool

func (*ArrayField) ItemConstructable 

func (s *ArrayField) ItemConstructable() string

func (*ArrayField) ItemType 

func (s *ArrayField) ItemType() AvroType

func (*ArrayField) Name 

func (s *ArrayField) Name() string

func (*ArrayField) SerializerMethod 

func (s *ArrayField) SerializerMethod() string

func (*ArrayField) UnionKey 

func (s *ArrayField) UnionKey() string

func (*ArrayField) WrapperType 

func (s *ArrayField) WrapperType() string

type AvroType 

type AvroType interface {
	Name() string
	GoType() string
	// The key to use in JSON-encoding a union with this value
	UnionKey() string

	// The name of the method which writes this field onto the wire
	SerializerMethod() string

	Children() []AvroType

	Attribute(name string) interface{}
	Definition(scope map[QualifiedName]interface{}) (interface{}, error)
	DefaultValue(lvalue string, rvalue interface{}) (string, error)

	// WrapperType is the VM type to wrap this value in, if applicable
	WrapperType() string
	IsReadableBy(f AvroType) bool
}

type BoolField 

type BoolField struct {
	PrimitiveField
}

func NewBoolField 

func NewBoolField(definition interface{}) *BoolField

func (*BoolField) DefaultValue 

func (s *BoolField) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*BoolField) IsReadableBy 

func (s *BoolField) IsReadableBy(f AvroType) bool

func (*BoolField) WrapperType 

func (s *BoolField) WrapperType() string

type BytesField 

type BytesField struct {
	PrimitiveField
}

func NewBytesField 

func NewBytesField(definition interface{}) *BytesField

func (*BytesField) DefaultValue 

func (s *BytesField) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*BytesField) IsReadableBy 

func (s *BytesField) IsReadableBy(f AvroType) bool

func (*BytesField) WrapperType 

func (s *BytesField) WrapperType() string

type Constructable 

type Constructable interface {
	ConstructorMethod() string
}

type Definition 

type Definition interface {
	AvroName() QualifiedName
	Aliases() []QualifiedName

	// A user-friendly name that can be built into a Go string (for unions, mostly)
	Name() string

	GoType() string

	SerializerMethod() string

	Children() []AvroType

	Attribute(name string) interface{}
	// A JSON object defining this object, for writing the schema back out
	Definition(scope map[QualifiedName]interface{}) (interface{}, error)
	DefaultValue(lvalue string, rvalue interface{}) (string, error)

	IsReadableBy(f Definition) bool
	WrapperType() string
}

type DoubleField 

type DoubleField struct {
	PrimitiveField
}

func NewDoubleField 

func NewDoubleField(definition interface{}) *DoubleField

func (*DoubleField) DefaultValue 

func (s *DoubleField) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*DoubleField) IsReadableBy 

func (s *DoubleField) IsReadableBy(f AvroType) bool

func (*DoubleField) WrapperType 

func (s *DoubleField) WrapperType() string

type EnumDefinition 

type EnumDefinition struct {
	// contains filtered or unexported fields
}

func NewEnumDefinition 

func NewEnumDefinition(name QualifiedName, aliases []QualifiedName, symbols []string, doc string, definition map[string]interface{}) *EnumDefinition

func (*EnumDefinition) Aliases 

func (e *EnumDefinition) Aliases() []QualifiedName

func (*EnumDefinition) Attribute 

func (s *EnumDefinition) Attribute(name string) interface{}

func (*EnumDefinition) AvroName 

func (e *EnumDefinition) AvroName() QualifiedName

func (*EnumDefinition) Children 

func (s *EnumDefinition) Children() []AvroType

func (*EnumDefinition) DefaultValue 

func (s *EnumDefinition) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*EnumDefinition) Definition 

func (s *EnumDefinition) Definition(scope map[QualifiedName]interface{}) (interface{}, error)

func (*EnumDefinition) Doc 

func (e *EnumDefinition) Doc() string

func (*EnumDefinition) FromStringMethod 

func (e *EnumDefinition) FromStringMethod() string

func (*EnumDefinition) GoType 

func (e *EnumDefinition) GoType() string

func (*EnumDefinition) IsReadableBy 

func (s *EnumDefinition) IsReadableBy(d Definition) bool

func (*EnumDefinition) Name 

func (e *EnumDefinition) Name() string

func (*EnumDefinition) SerializerMethod 

func (e *EnumDefinition) SerializerMethod() string

func (*EnumDefinition) SymbolName 

func (e *EnumDefinition) SymbolName(symbol string) string

func (*EnumDefinition) Symbols 

func (e *EnumDefinition) Symbols() []string

func (*EnumDefinition) WrapperType 

func (s *EnumDefinition) WrapperType() string

type Field 

type Field struct {
	// contains filtered or unexported fields
}

func NewField 

func NewField(avroName string, avroType AvroType, defValue interface{}, hasDef bool, aliases []string, doc string, definition map[string]interface{}, index int, fieldTags string) *Field

func (*Field) Aliases 

func (f *Field) Aliases() []string

func (*Field) Default 

func (f *Field) Default() interface{}

func (*Field) Definition 

func (f *Field) Definition(scope map[QualifiedName]interface{}) (map[string]interface{}, error)

func (*Field) Doc 

func (f *Field) Doc() string

func (*Field) GoName 

func (f *Field) GoName() string

func (*Field) HasDefault 

func (f *Field) HasDefault() bool

func (*Field) Index 

func (f *Field) Index() int

func (*Field) Name 

func (f *Field) Name() string

func (*Field) NameMatchesAliases 

func (f *Field) NameMatchesAliases(writerName string) bool

NameMatchesAliases checks whether this field, in the reader schema, has a name or alias equal to the name in the writer schema

func (*Field) Tags 

func (f *Field) Tags() string

Tags returns a field go struct tags if defined.

func (*Field) Type 

func (f *Field) Type() AvroType

type FileRoot 

type FileRoot struct {
	Type AvroType
}

FileRoot represents the Avro type at the root of a given schema file, and implements Definition. This is necessary for files which contain a union, array, map, etc. at the top level since these types don't otherwise have a Definition which would result in code being generated.

func (*FileRoot) Aliases 

func (f *FileRoot) Aliases() []QualifiedName

func (*FileRoot) Attribute 

func (f *FileRoot) Attribute(name string) interface{}

func (*FileRoot) AvroName 

func (f *FileRoot) AvroName() QualifiedName

func (*FileRoot) Children 

func (f *FileRoot) Children() []AvroType

func (*FileRoot) DefaultValue 

func (f *FileRoot) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*FileRoot) Definition 

func (f *FileRoot) Definition(scope map[QualifiedName]interface{}) (interface{}, error)

func (*FileRoot) GoType 

func (f *FileRoot) GoType() string

func (*FileRoot) IsReadableBy 

func (f *FileRoot) IsReadableBy(_ Definition) bool

func (*FileRoot) Name 

func (f *FileRoot) Name() string

func (*FileRoot) SerializerMethod 

func (f *FileRoot) SerializerMethod() string

func (*FileRoot) WrapperType 

func (f *FileRoot) WrapperType() string

type FixedDefinition 

type FixedDefinition struct {
	// contains filtered or unexported fields
}

func NewFixedDefinition 

func NewFixedDefinition(name QualifiedName, aliases []QualifiedName, sizeBytes int, definition map[string]interface{}) *FixedDefinition

func (*FixedDefinition) Aliases 

func (s *FixedDefinition) Aliases() []QualifiedName

func (*FixedDefinition) Attribute 

func (s *FixedDefinition) Attribute(name string) interface{}

func (*FixedDefinition) AvroName 

func (s *FixedDefinition) AvroName() QualifiedName

func (*FixedDefinition) Children 

func (s *FixedDefinition) Children() []AvroType

func (*FixedDefinition) DefaultValue 

func (s *FixedDefinition) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*FixedDefinition) Definition 

func (s *FixedDefinition) Definition(scope map[QualifiedName]interface{}) (interface{}, error)

func (*FixedDefinition) GoType 

func (s *FixedDefinition) GoType() string

func (*FixedDefinition) IsReadableBy 

func (s *FixedDefinition) IsReadableBy(d Definition) bool

func (*FixedDefinition) Name 

func (s *FixedDefinition) Name() string

func (*FixedDefinition) SerializerMethod 

func (s *FixedDefinition) SerializerMethod() string

func (*FixedDefinition) SizeBytes 

func (s *FixedDefinition) SizeBytes() int

func (*FixedDefinition) WrapperType 

func (s *FixedDefinition) WrapperType() string

type FloatField 

type FloatField struct {
	PrimitiveField
}

func NewFloatField 

func NewFloatField(definition interface{}) *FloatField

func (*FloatField) DefaultValue 

func (s *FloatField) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*FloatField) IsReadableBy 

func (s *FloatField) IsReadableBy(f AvroType) bool

func (*FloatField) WrapperType 

func (s *FloatField) WrapperType() string

type IntField 

type IntField struct {
	PrimitiveField
}

func NewIntField 

func NewIntField(definition interface{}) *IntField

func (*IntField) DefaultValue 

func (s *IntField) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*IntField) IsReadableBy 

func (s *IntField) IsReadableBy(f AvroType) bool

func (*IntField) WrapperType 

func (s *IntField) WrapperType() string

type LongField 

type LongField struct {
	PrimitiveField
}

func NewLongField 

func NewLongField(definition interface{}) *LongField

func (*LongField) DefaultValue 

func (s *LongField) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*LongField) IsReadableBy 

func (s *LongField) IsReadableBy(f AvroType) bool

func (*LongField) WrapperType 

func (s *LongField) WrapperType() string

type MapField 

type MapField struct {
	// contains filtered or unexported fields
}

func NewMapField 

func NewMapField(itemType AvroType, definition map[string]interface{}) *MapField

func (*MapField) Attribute 

func (s *MapField) Attribute(name string) interface{}

func (*MapField) Children 

func (s *MapField) Children() []AvroType

func (*MapField) ConstructorMethod 

func (s *MapField) ConstructorMethod() string

func (*MapField) DefaultValue 

func (s *MapField) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*MapField) Definition 

func (s *MapField) Definition(scope map[QualifiedName]interface{}) (interface{}, error)

func (*MapField) GoType 

func (s *MapField) GoType() string

func (*MapField) IsReadableBy 

func (s *MapField) IsReadableBy(f AvroType) bool

func (*MapField) ItemConstructable 

func (s *MapField) ItemConstructable() string

func (*MapField) ItemType 

func (s *MapField) ItemType() AvroType

func (*MapField) Name 

func (s *MapField) Name() string

func (*MapField) SerializerMethod 

func (s *MapField) SerializerMethod() string

func (*MapField) UnionKey 

func (s *MapField) UnionKey() string

func (*MapField) WrapperType 

func (s *MapField) WrapperType() string

type Node 

type Node interface {
	Name() string
	Children() []AvroType
}

type NullField 

type NullField struct {
	PrimitiveField
}

func NewNullField 

func NewNullField(definition interface{}) *NullField

func (*NullField) DefaultValue 

func (s *NullField) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*NullField) IsReadableBy 

func (s *NullField) IsReadableBy(f AvroType) bool

func (*NullField) WrapperType 

func (s *NullField) WrapperType() string

type PrimitiveField 

type PrimitiveField struct {
	// contains filtered or unexported fields
}

Common methods for all primitive types

func (*PrimitiveField) Attribute 

func (s *PrimitiveField) Attribute(name string) interface{}

func (*PrimitiveField) Children 

func (s *PrimitiveField) Children() []AvroType

func (*PrimitiveField) Definition 

func (s *PrimitiveField) Definition(_ map[QualifiedName]interface{}) (interface{}, error)

func (*PrimitiveField) GoType 

func (s *PrimitiveField) GoType() string

func (*PrimitiveField) Name 

func (s *PrimitiveField) Name() string

func (*PrimitiveField) SerializerMethod 

func (s *PrimitiveField) SerializerMethod() string

func (*PrimitiveField) UnionKey 

func (s *PrimitiveField) UnionKey() string

type QualifiedName 

type QualifiedName struct {
	Namespace string
	Name      string
}

QualifiedName represents an Avro qualified name, which includes an optional namespace and the type name.

func (QualifiedName) String 

func (q QualifiedName) String() string

type RecordDefinition 

type RecordDefinition struct {
	// contains filtered or unexported fields
}

func NewRecordDefinition 

func NewRecordDefinition(name QualifiedName, aliases []QualifiedName, fields []*Field, doc string, metadata map[string]interface{}) *RecordDefinition

func (*RecordDefinition) Aliases 

func (r *RecordDefinition) Aliases() []QualifiedName

func (*RecordDefinition) Attribute 

func (s *RecordDefinition) Attribute(name string) interface{}

func (*RecordDefinition) AvroName 

func (r *RecordDefinition) AvroName() QualifiedName

func (*RecordDefinition) Children 

func (s *RecordDefinition) Children() []AvroType

func (*RecordDefinition) ConstructableForField 

func (r *RecordDefinition) ConstructableForField(f *Field) string

func (*RecordDefinition) ConstructorMethod 

func (r *RecordDefinition) ConstructorMethod() string

func (*RecordDefinition) DefaultForField 

func (r *RecordDefinition) DefaultForField(f *Field) (string, error)

func (*RecordDefinition) DefaultValue 

func (r *RecordDefinition) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*RecordDefinition) Definition 

func (r *RecordDefinition) Definition(scope map[QualifiedName]interface{}) (interface{}, error)

func (*RecordDefinition) Doc 

func (s *RecordDefinition) Doc() string

func (*RecordDefinition) FieldByName 

func (r *RecordDefinition) FieldByName(field string) *Field

FieldByName finds a field in the reader schema whose name or aliases match a name in the writer schema.

func (*RecordDefinition) Fields 

func (r *RecordDefinition) Fields() []*Field

func (*RecordDefinition) GetReference 

func (s *RecordDefinition) GetReference() bool

func (*RecordDefinition) GoType 

func (r *RecordDefinition) GoType() string

func (*RecordDefinition) IsReadableBy 

func (s *RecordDefinition) IsReadableBy(d Definition) bool

func (*RecordDefinition) Name 

func (r *RecordDefinition) Name() string

func (*RecordDefinition) NewWriterMethod 

func (r *RecordDefinition) NewWriterMethod() string

func (*RecordDefinition) RecordReaderTypeName 

func (r *RecordDefinition) RecordReaderTypeName() string

func (*RecordDefinition) Schema 

func (s *RecordDefinition) Schema() (string, error)

func (*RecordDefinition) SerializerMethod 

func (r *RecordDefinition) SerializerMethod() string

func (*RecordDefinition) WrapperType 

func (s *RecordDefinition) WrapperType() string

type Reference 

type Reference struct {
	TypeName QualifiedName
	Def      Definition
}

Reference to a user-defined type (fixed, enum, record). Just a wrapper with a name around a Definition.

func NewReference 

func NewReference(typeName QualifiedName) *Reference

func (*Reference) Attribute 

func (s *Reference) Attribute(name string) interface{}

func (*Reference) Children 

func (s *Reference) Children() []AvroType

func (*Reference) DefaultValue 

func (s *Reference) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*Reference) Definition 

func (s *Reference) Definition(scope map[QualifiedName]interface{}) (interface{}, error)

func (*Reference) GoType 

func (s *Reference) GoType() string

func (*Reference) IsReadableBy 

func (s *Reference) IsReadableBy(f AvroType) bool

func (*Reference) Name 

func (s *Reference) Name() string

func (*Reference) SerializerMethod 

func (s *Reference) SerializerMethod() string

func (*Reference) UnionKey 

func (s *Reference) UnionKey() string

func (*Reference) WrapperType 

func (s *Reference) WrapperType() string

type StringField 

type StringField struct {
	PrimitiveField
}

func NewStringField 

func NewStringField(definition interface{}) *StringField

func (*StringField) DefaultValue 

func (s *StringField) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*StringField) IsReadableBy 

func (s *StringField) IsReadableBy(f AvroType) bool

func (*StringField) WrapperType 

func (s *StringField) WrapperType() string

type UnionField 

type UnionField struct {
	// contains filtered or unexported fields
}

func NewUnionField 

func NewUnionField(name string, itemType []AvroType, definition []interface{}) *UnionField

func (*UnionField) Attribute 

func (s *UnionField) Attribute(name string) interface{}

func (*UnionField) AvroTypes 

func (s *UnionField) AvroTypes() []AvroType

func (*UnionField) Children 

func (s *UnionField) Children() []AvroType

func (*UnionField) ConstructorMethod 

func (s *UnionField) ConstructorMethod() string

func (*UnionField) DefaultValue 

func (s *UnionField) DefaultValue(lvalue string, rvalue interface{}) (string, error)

func (*UnionField) Definition 

func (s *UnionField) Definition(scope map[QualifiedName]interface{}) (interface{}, error)

func (*UnionField) Equals 

func (s *UnionField) Equals(reader *UnionField) bool

func (*UnionField) GetReference 

func (s *UnionField) GetReference() bool

func (*UnionField) GoType 

func (s *UnionField) GoType() string

func (*UnionField) IsReadableBy 

func (s *UnionField) IsReadableBy(f AvroType) bool

func (*UnionField) ItemConstructor 

func (s *UnionField) ItemConstructor(f AvroType) string

func (*UnionField) ItemName 

func (s *UnionField) ItemName(item AvroType) string

func (*UnionField) ItemTypes 

func (s *UnionField) ItemTypes() []AvroType

func (*UnionField) Name 

func (s *UnionField) Name() string

func (*UnionField) NullIndex 

func (s *UnionField) NullIndex() int

func (*UnionField) Schema 

func (s *UnionField) Schema() (string, error)

func (*UnionField) SerializerMethod 

func (s *UnionField) SerializerMethod() string

func (*UnionField) UnionEnumType 

func (s *UnionField) UnionEnumType() string

func (*UnionField) UnionKey 

func (s *UnionField) UnionKey() string

func (*UnionField) WrapperType 

func (s *UnionField) WrapperType() string

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