Spatial Engine PostGIS

A spatial engine provides access to a service that can perform spatial operations, one of the available spatial engines is for PostGIS.

Namespace

urn:com.cohga.server.spatial.geotools#1.0

Tags

spatialengine

Properties

Name	Type	Required	Description
id	string	yes	Unique identifier
dbtype	'postgis'	yes	The name of the driver to use, in this case PostGIS
host	string	yes	The hostname or ip address of the server
port	number	yes	The port number that the instance is running on
database	string	yes	The database to connected to
schema	string	no	The default schema to connected to, default is 'public'
user	string	no	The userid used when connecting to the database
passwd	string	no	The password used when connecting to the database
minconnections	integer	no	The minimum number of connections to open to the database
maxconnections	integer	no	The maximum number of connections to open to the database
validateconnections	boolean	no	Should database connections be checked on each access to see if they're still valid
namespace	string	no	The namespace prefix
wkbenabled	boolean	no	Should Well Known Binary be used to read MqSQL data (experimental)
loosebox	boolean	no	If set to 'true' if the Bounding Box should be 'loose', faster but not as deadly accurate
estimatedextent	boolean	no	set to true if the bounds for a table should be computed using the 'estimated_extent' function, but beware that this function is less accurate, and in some cases * far* less accurate if the data within the actual bounds does not follow a uniform distribution. It also relies on the fact that you have accurate table stats available. So it is a good idea to 'VACUUM ANALYZE' the postgis table

Sub-tags

None

Content

None

Primary Key Table

For specifying primary key columns when Weave/GeoTools can not determine it directly

CREATE TABLE gt_pk_metadata (
 table_schema VARCHAR(32),
 table_name VARCHAR(32) NOT NULL,
 pk_column VARCHAR(32) NOT NULL,
 pk_column_idx INTEGER,
 pk_policy VARCHAR(32),
 pk_sequence VARCHAR(64),
 unique (table_schema, table_name, pk_column),
 check (pk_policy in ('sequence', 'assigned', 'autoincrement'))
)

Examples

<spatial:spatialengine id="postgis">
	<dbtype>postgis</dbtype>
	<host>mysqlhost</host>
	<port>5432</port>
	<database>spatial</database>
	<user>gis</user>
	<passwd>hak0rz</passwd>
</spatial:spatialengine>