org.mongodb.morphia.geo

Class GeometryShapeConverter

java.lang.Object

org.mongodb.morphia.converters.TypeConverter

org.mongodb.morphia.geo.GeometryShapeConverter

All Implemented Interfaces:

SimpleValueConverter

Direct Known Subclasses:

GeometryShapeConverter.LineStringConverter, GeometryShapeConverter.MultiLineStringConverter, GeometryShapeConverter.MultiPointConverter, GeometryShapeConverter.MultiPolygonConverter, GeometryShapeConverter.PointConverter, GeometryShapeConverter.PolygonConverter

public class GeometryShapeConverter
extends TypeConverter
implements SimpleValueConverter

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.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GeometryShapeConverter.LineStringConverter Defines a new LineStringConverter.
static class	GeometryShapeConverter.MultiLineStringConverter Defines a new MultiLineStringConverter.
static class	GeometryShapeConverter.MultiPointConverter Defines a new MultiPointConverter.
static class	GeometryShapeConverter.MultiPolygonConverter Extends and therefore configures GeometryShapeConverter to provide the specific configuration for converting MultiPolygon objects to and from MongoDB representations of the GeoJson.
static class	GeometryShapeConverter.PointConverter Defines a new PointConverter.
static class	GeometryShapeConverter.PolygonConverter Defines a new PolygonConverter.

Method Summary

Modifier and Type	Method and Description
Geometry	decode(Class<?> targetClass, Object fromDBObject, MappedField optionalExtraInfo) decode the DBObject and provide the corresponding java (type-safe) object NOTE: optionalExtraInfo might be null
Object	encode(Object value, MappedField optionalExtraInfo) encode the (type-safe) java object into the corresponding DBObject

Methods inherited from class org.mongodb.morphia.converters.TypeConverter

decode, encode, equals, getMapper, getSupportTypes, hashCode, isSupported, oneOf, oneOfClasses, setMapper, setSupportedTypes, setSupportTypes

Methods inherited from class java.lang.Object

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

Method Detail

decode

public Geometry decode(Class<?> targetClass,
                       Object fromDBObject,
                       MappedField optionalExtraInfo)

Description copied from class: TypeConverter

decode the DBObject and provide the corresponding java (type-safe) object
NOTE: optionalExtraInfo might be null

Specified by:

decode in class TypeConverter

Parameters:

targetClass - the class to create and populate

fromDBObject - the DBObject to use when populating the new instance

optionalExtraInfo - the MappedField that contains the metadata useful for decoding

Returns:

the new instance

encode

public Object encode(Object value,
                     MappedField optionalExtraInfo)

Description copied from class: TypeConverter

encode the (type-safe) java object into the corresponding DBObject

Overrides:

encode in class TypeConverter

Parameters:

value - The object to encode

optionalExtraInfo - the MappedField that contains the metadata useful for decoding

Returns:

the encoded version of the object