Package dev.morphia.geo

Class GeometryShapeConverter<T>

java.lang.Object

dev.morphia.geo.GeometryShapeConverter<T>

Type Parameters:

T - the type

All Implemented Interfaces:

org.bson.codecs.Codec<T>, org.bson.codecs.Decoder<T>, org.bson.codecs.Encoder<T>

public class GeometryShapeConverter<T>
extends Object
implements org.bson.codecs.Codec<T>

Converter that understands most Geometry instances are effectively just lists of either other geometry objects or double coordinates. Recursively encodes and decodes Geometry objects, but needs to be instantiated with a List of GeometryFactory instances that represented the hierarchy of Geometries that make up the required Geometry object.

Overridden by subclasses to define exact behaviour for specific Geometry concrete classes.

Constructor Summary

Constructors

Constructor	Description
GeometryShapeConverter()

Method Summary

Modifier and Type	Method	Description
T	decode(org.bson.BsonReader reader, org.bson.codecs.DecoderContext decoderContext)	Decodes a BSON value from the given reader into an instance of the type parameter T.
void	encode(org.bson.BsonWriter writer, T value, org.bson.codecs.EncoderContext encoderContext)	Encode an instance of the type parameter T into a BSON value.
Class<T>	getEncoderClass()	Returns the Class instance that this encodes.

Methods inherited from class java.lang.Object

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

Constructor Detail

GeometryShapeConverter

public GeometryShapeConverter()

Method Detail

decode

public T decode(org.bson.BsonReader reader,
                org.bson.codecs.DecoderContext decoderContext)

Description copied from interface: org.bson.codecs.Decoder

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

Specified by:

decode in interface org.bson.codecs.Decoder<T>

Parameters:

reader - the BSON reader

decoderContext - the decoder context

Returns:

an instance of the type parameter T.

encode

public void encode(org.bson.BsonWriter writer,
                   T value,
                   org.bson.codecs.EncoderContext encoderContext)

Description copied from interface: org.bson.codecs.Encoder

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

Specified by:

encode in interface org.bson.codecs.Encoder<T>

Parameters:

writer - the BSON writer to encode into

value - the value to encode

encoderContext - the encoder context

getEncoderClass

public Class<T> getEncoderClass()

Description copied from interface: org.bson.codecs.Encoder

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

Specified by:

getEncoderClass in interface org.bson.codecs.Encoder<T>

Returns:

the Class instance that this encodes.