org.bson.codecs

Class UuidCodec

java.lang.Object

org.bson.codecs.UuidCodec

All Implemented Interfaces:

Codec<java.util.UUID>, Decoder<java.util.UUID>, Encoder<java.util.UUID>

public class UuidCodec
extends java.lang.Object
implements Codec<java.util.UUID>

Encodes and decodes UUID objects.

Since:

3.0

Field Summary

Fields

Modifier and Type	Field and Description
private UuidRepresentation	decoderUuidRepresentation
private UuidRepresentation	encoderUuidRepresentation

Constructor Summary

Constructors

Constructor and Description
UuidCodec() The constructor for UUIDCodec, default is JAVA_LEGACY
UuidCodec(UuidRepresentation uuidRepresentation) The default UUIDRepresentation is JAVA_LEGACY to be compatible with existing documents

Method Summary

Modifier and Type	Method and Description
java.util.UUID	decode(BsonReader reader, DecoderContext decoderContext) Decodes a BSON value from the given reader into an instance of the type parameter T.
void	encode(BsonWriter writer, java.util.UUID value, EncoderContext encoderContext) Encode an instance of the type parameter T into a BSON value.
java.lang.Class<java.util.UUID>	getEncoderClass() Returns the Class instance that this encodes.
private static long	readLongFromArrayBigEndian(byte[] bytes, int offset)
private static void	writeLongToArrayBigEndian(byte[] bytes, int offset, long x)

Methods inherited from class java.lang.Object

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

Field Detail

encoderUuidRepresentation

private final UuidRepresentation encoderUuidRepresentation

decoderUuidRepresentation

private final UuidRepresentation decoderUuidRepresentation

Constructor Detail

UuidCodec

public UuidCodec(UuidRepresentation uuidRepresentation)

The default UUIDRepresentation is JAVA_LEGACY to be compatible with existing documents

Parameters:

uuidRepresentation - the representation of UUID

See Also:

UuidRepresentation

UuidCodec

public UuidCodec()

The constructor for UUIDCodec, default is JAVA_LEGACY

Method Detail

encode

public void encode(BsonWriter writer,
                   java.util.UUID value,
                   EncoderContext encoderContext)

Description copied from interface: Encoder

Encode an instance of the type parameter T into a BSON value.

Specified by:

encode in interface Encoder<java.util.UUID>

Parameters:

writer - the BSON writer to encode into

value - the value to encode

encoderContext - the encoder context

decode

public java.util.UUID decode(BsonReader reader,
                             DecoderContext decoderContext)

Description copied from interface: Decoder

Decodes a BSON value from the given reader into an instance of the type parameter T.

Specified by:

decode in interface Decoder<java.util.UUID>

Parameters:

reader - the BSON reader

decoderContext - the decoder context

Returns:

an instance of the type parameter T.

getEncoderClass

public java.lang.Class<java.util.UUID> getEncoderClass()

Description copied from interface: Encoder

Returns the Class instance that this encodes. This is necessary because Java does not reify generic types.

Specified by:

getEncoderClass in interface Encoder<java.util.UUID>

Returns:

the Class instance that this encodes.

writeLongToArrayBigEndian

private static void writeLongToArrayBigEndian(byte[] bytes,
                                              int offset,
                                              long x)

readLongFromArrayBigEndian

private static long readLongFromArrayBigEndian(byte[] bytes,
                                               int offset)