Database Reference
In-Depth Information
Location Entity
The
Location
entity, shown in Listing 11-50, has an outgoing relationship to Product that allows a location to have
multiple products. In addition, the entity includes a
@Transient
value. Transient values are not persisted or managed
in the database but contain values that an entity could use for display or other purposes. In this case, you will use the
distanceToLocation
property to display a String value of the location's distance relative to the starting point in the search.
Listing 11-50.
The Location Entity
@NodeEntity
@TypeAlias("Location")
public class Location {
@GraphId
private Long nodeId;
@Indexed
private String locationId;
private String name;
private String address;
private String city;
private String state;
private String zip;
private Double lat;
private Double lon;
@RelatedTo(type = GraphStoryConstants.HAS, direction =
Direction.OUTGOING, elementClass = Product.class)
private Set<Product> products;
@Transient
private String distanceToLocation;
// getters and setters
}
The
User
object also contains a relationship to
Location
via the HAS relationship type.
User
locations are
retrieved through the
getUserLocation
method, shown in Listing 11-51, which is located in the
UserImpl
class.
