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A spatial engine provides access to a service that can perform spatial operations, such as determining what entities fall within a polygon, but it also provides a spatial perspective to the entities that that the system will use. For example providing details about the coordinate reference system that the entity is stored in.

This will generally be something like ArcSDE, Oracle Spatial, Shapefiles or WFS, and usually at least one will be defined.

Because there are different spatial engines available there are different configuration parameters for each one so the content of this tag is different depending upon the actual spatial engine implementation.

Namespace

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

Tags

spatialengine

Properties

Name

Type

Required

Description

id

string

yes

unique identifier

Sub-tags

Depends on type of spatial engine

Content

Depends on type of spatial engine

Examples

Connecting to ArcSDE

<spatial:spatialengine id="arcsde">
	<dbtype>arcsde</dbtype>
	<server>hostname</server>
	<port>5151</port>
	<user>username</user>
	<password>password</password>
	<pool>
		<minConnections>2</minConnections>
		<maxConnections>5</maxConnections>
		<timeOut>10000</timeOut>
		<testOnBorrow>true</testOnBorrow>
		<testOnReturn>false</testOnReturn>
		<testWhileIdle>false</testWhileIdle>
		<timeBetweenEvictionRunsMillis>5000</timeBetweenEvictionRunsMillis>
		<whenExhaustedAction>block</whenExhaustedAction>
	</pool>
</spatial:spatialengine>

Connecting to Oracle Spatial

<spatial:spatialengine id="oracle">
	<dbtype>oracle</dbtype>
	<host>hostname</host>
	<port>1521</port>
	<user>username</user>
	<passwd>password</passwd>
	<schema>SCHEMA</schema>
	<instance>instance</instance>
</spatial:spatialengine>

Connecting to Microsoft SQL Server

<spatial:spatialengine id="sqlserver">
	<dbtype>sqlserver</dbtype>
    <host>hostname</host>
    <port>1433</port>
    <user>username</user>
    <passwd>password</passwd>
    <database>password</database>
    <schema>SCHEMA</schema>
    <geometrymetadatatable>v_geometry_columns</geometrymetadatatable>
</spatial:spatialengine>

Connecting to Microsoft SQL Server using JNDI

<spatial:spatialengine id="sqlserver">
	<dbtype>sqlserverjndi</dbtype>
    <jndiReferenceName>java:comp/env/jdbc/spatialDS</jndiReferenceName>
</spatial:spatialengine>

Connecting to a Shapefile directory

<spatial:spatialengine id="shapefile">
	<dbtype>shapefiledir</dbtype>
	<url><![CDATA[file:C:/data_dir/data]]></url>
	<memorymapped>true</memorymapped>
</spatial:spatialengine>

Connecting to WFS

<spatial:spatialengine id="wfs">
	<dbtype>wfs</dbtype>
	<url><![CDATA[http://hostname/wfs]]></url>
	<protocol>get</protocol>
	<username>username</username>
	<password>password</password>
	<timeout>5000</timeout>
	<buffersize>100000</buffersize>
	<gzip>true</gzip>
	<lenient>true</lenient>
</spatial:spatialengine>

Connecting to ArcGIS

<spatial:spatialengine id="arcgis">
	<dbtype>arcgis</dbtype>
	<url><![CDATA[https://services.arcgis.com/3vStCH7NDoBOZ5zn/arcgis/rest/services/Potable_Water_Pipe/FeatureServer]]></url>
	<crs>EPSG:28356</crs>
</spatial:spatialengine>
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