Avro.File.DataFileConstants Class Reference

Constants used in data files. More...

Static Public Attributes
const string	MetaDataSync = "avro.sync"
	Key for the 'sync' metadata entry. More...
const string	MetaDataCodec = "avro.codec"
	Key for the 'codec' metadata entry. More...
const string	MetaDataSchema = "avro.schema"
	Key for the 'schema' metadata entry. More...
const string	NullCodec = "null"
	Identifier for the null codec. More...
const string	DeflateCodec = "deflate"
	Identifier for the deflate codec. More...
const string	SnappyCodec = "snappy"
	Identifier for the Snappy codec. More...
const string	BZip2Codec = "bzip2"
	Identifier for the BZip2 codec. More...
const string	XZCodec = "xz"
	Identifier for the XZ codec. More...
const string	ZstandardCodec = "zstandard"
	Identifier for the Zstandard codec. More...
const string	MetaDataReserved = "avro"
	Reserved 'avro' metadata key. More...
const int	Version = 1
	Avro specification version. More...
static byte[]	Magic
	Magic bytes at the beginning of an Avro data file. More...
const int	NullCodecHash = 2
	Hash code for the null codec. More...
const int	DeflateCodecHash = 0
	Hash code for the deflate codec. More...
const int	SyncSize = 16
	Size of a sync token in bytes. More...
const int	DefaultSyncInterval = 4000 * SyncSize
	Default interval for sync tokens. More...

Detailed Description

Constants used in data files.

Member Data Documentation

BZip2Codec

const string Avro.File.DataFileConstants.BZip2Codec = "bzip2"

static

Identifier for the BZip2 codec.

DefaultSyncInterval

const int Avro.File.DataFileConstants.DefaultSyncInterval = 4000 * SyncSize

static

Default interval for sync tokens.

DeflateCodec

const string Avro.File.DataFileConstants.DeflateCodec = "deflate"

static

Identifier for the deflate codec.

DeflateCodecHash

const int Avro.File.DataFileConstants.DeflateCodecHash = 0

static

Hash code for the deflate codec.

See also

DeflateCodec.GetHashCode()

Magic

byte [] Avro.File.DataFileConstants.Magic

static

Initial value:

= { (byte)'O',
                                       (byte)'b',
                                       (byte)'j',
                                       Version }

Magic bytes at the beginning of an Avro data file.

MetaDataCodec

const string Avro.File.DataFileConstants.MetaDataCodec = "avro.codec"

static

Key for the 'codec' metadata entry.

MetaDataReserved

const string Avro.File.DataFileConstants.MetaDataReserved = "avro"

static

Reserved 'avro' metadata key.

MetaDataSchema

const string Avro.File.DataFileConstants.MetaDataSchema = "avro.schema"

static

Key for the 'schema' metadata entry.

MetaDataSync

const string Avro.File.DataFileConstants.MetaDataSync = "avro.sync"

static

Key for the 'sync' metadata entry.

NullCodec

const string Avro.File.DataFileConstants.NullCodec = "null"

static

Identifier for the null codec.

NullCodecHash

const int Avro.File.DataFileConstants.NullCodecHash = 2

static

Hash code for the null codec.

See also

NullCodec.GetHashCode()

SnappyCodec

const string Avro.File.DataFileConstants.SnappyCodec = "snappy"

static

Identifier for the Snappy codec.

SyncSize

const int Avro.File.DataFileConstants.SyncSize = 16

static

Size of a sync token in bytes.

Version

const int Avro.File.DataFileConstants.Version = 1

static

Avro specification version.

XZCodec

const string Avro.File.DataFileConstants.XZCodec = "xz"

static

Identifier for the XZ codec.

ZstandardCodec

const string Avro.File.DataFileConstants.ZstandardCodec = "zstandard"

static

Identifier for the Zstandard codec.

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The documentation for this class was generated from the following file:

• src/apache/main/File/DataFileConstants.cs