Setting the Geocoding Dataset Search Order
Default Search Order
The default geocoding dataset search order searches point-level datasets before street-level datasets. This is reflected in the list of configured geocoding datasets.
Changing the Search Order
You can change the search order or remove a geocoding dataset so it is not used in matching
by modifying the preferred geocoding dataset search order in the preferences. The
search order is a List of strings. If a geocoding dataset is left off the list, it
is not used in matching. The geocoding dataset order is written using the string
value of the index in configured geocoding datasets. The default order starts with
an index of "0". Setting the order to
{"2","1","0"} would invert the configured order for a country
with 3 geocoding datasets.
- To set the order of geocoding datasets for single geocode or reverse geocode operations:
| API | Description |
|---|---|
| REST | Send a POST request to the desired service - geocode or reverse geocode. Set the order using the preferredDictionaryOrder element in the preferences object. For more information, see Geocoding POST Request and Reverse Geocoding POST Request. |
- To set the order of geocoding datasets for multiple geocode or reverse geocode operations (geocodeMultiple or reverseGeocodeMultiple):
The multiple geocode/reverse geocode operations may include multiple countries, therefore, you
need to specify the country ISO-3166 3-character country code in the search order
list. For example: {"USA","2","1","0","FRA","0","1"}. Use the
methods specified in the table above to set the preferred geocoding dataset
order.
If the list does not start with a country code, an exception will be generated. If a country is not found in the list, its configured dictionary order is used.
- The USA custom option FIND_DB_ORDER will supersede the set preferred geocoding dataset order setting/method.
- For single or multiple reverse geocoding, the set preferred geocoding dataset order setting/method is not supported in USA and is ignored.