org.bson.codecs

Class BsonValueCodec

java.lang.Object

org.bson.codecs.BsonValueCodec

All Implemented Interfaces:

Codec<BsonValue>, Decoder<BsonValue>, Encoder<BsonValue>

public class BsonValueCodec
extends java.lang.Object
implements Codec<BsonValue>

A codec for unknown BsonValues.

Useful for decoding a mix of differing Bson types.

Since:

3.0

Constructor Summary

Constructors

Constructor and Description
BsonValueCodec() Creates a new instance with a default codec registry that uses the BsonValueCodecProvider.
BsonValueCodec(CodecRegistry codecRegistry) Creates a new instance initialised with the given codec registry.

Method Summary

Modifier and Type	Method and Description
BsonValue	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, BsonValue value, EncoderContext encoderContext) Encode an instance of the type parameter T into a BSON value.
java.lang.Class<BsonValue>	getEncoderClass() Returns the Class instance that this encodes.

Methods inherited from class java.lang.Object

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

Constructor Detail

BsonValueCodec

public BsonValueCodec()

Creates a new instance with a default codec registry that uses the BsonValueCodecProvider.

BsonValueCodec

public BsonValueCodec(CodecRegistry codecRegistry)

Creates a new instance initialised with the given codec registry.

Parameters:

codecRegistry - the CodecRegistry to use to look up the codecs for encoding and decoding to/from BSON

Method Detail

decode

public BsonValue 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<BsonValue>

Parameters:

reader - the BSON reader

decoderContext - the decoder context

Returns:

an instance of the type parameter T.

encode

public void encode(BsonWriter writer,
                   BsonValue 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<BsonValue>

Parameters:

writer - the BSON writer to encode into

value - the value to encode

encoderContext - the encoder context

getEncoderClass

public java.lang.Class<BsonValue> 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<BsonValue>

Returns:

the Class instance that this encodes.