org.hibernate.search.annotations

Annotation Type Spatial

@Retention(value=RUNTIME)
 @Target(value={METHOD,FIELD,TYPE})
 @Documented
 @Repeatable(value=Spatials.class)
public @interface Spatial

Defines a spatial property. Spatial coordinates can be indexed as latitude / longitude fields and queried via range queries. This is known as the SpatialMode.RANGE approach. Otherwise, they can be indexed using a spatial hash index. This is known as the SpatialMode.HASH approach. The size of the grid can be adjusted with topSpatialHashLevel and bottomSpatialHashLevel. For more information on which model to use, read the Hibernate Search reference documentation. If your longitude and latitude information are hosted on free properties, Add @Spatial on the entity (class-level). The Latitude and Longitude annotations must mark the properties.

 @Entity
 @Spatial(name="home")
 public class User {
     @Latitude(of="home")
     public Double getHomeLatitude() { ... }
     @Longitude(of="home")
     public Double getHomeLongitude() { ... }
 }
 

Alternatively, you can put the latitude / longitude information in a property of type Coordinates.

 @Entity
 public class User {
     @Spatial
     public Coordinates getHome() { ... }
 }
 

Author:

Nicolas Helleringer

Experimental

Spatial support is still considered experimental

Field Summary

Fields

Modifier and Type	Fields and Description
static String	COORDINATES_DEFAULT_FIELD Prefix used to generate field names for a default Spatial annotation

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
Boost	boost
int	bottomSpatialHashLevel
String	name The name of the field prefix where spatial index information is stored in a Lucene document.
SpatialMode	spatialMode
Store	store
int	topSpatialHashLevel

Field Detail

COORDINATES_DEFAULT_FIELD

public static final String COORDINATES_DEFAULT_FIELD

Prefix used to generate field names for a default Spatial annotation

Element Detail

name

public abstract String name

The name of the field prefix where spatial index information is stored in a Lucene document. If @Spatial is hosted on a property, defaults to the property name.

Returns:

the field name

Default:

""

store

public abstract Store store

Returns:

Returns an instance of the Store enum, indicating whether the value should be stored in the document. Defaults to Store.NO

Default:

org.hibernate.search.annotations.Store.NO

boost

public abstract Boost boost

Returns:

Returns a Boost annotation defining a float index time boost value

Default:

@org.hibernate.search.annotations.Boost(1.0f)

spatialMode

public abstract SpatialMode spatialMode

Returns:

the mode used for Spatial indexing

Default:

org.hibernate.search.annotations.SpatialMode.RANGE

topSpatialHashLevel

public abstract int topSpatialHashLevel

Returns:

top range spatial hash level for spatial indexing

Default:

0

bottomSpatialHashLevel

public abstract int bottomSpatialHashLevel

Returns:

bottom spatial hash level for spatial indexing

Default:

16