PostGIS Plugin

Supports direct access to the PostGIS database.

References:

Related

Maven

<dependency>
   <groupId>org.geotools.jdbc</groupId>
   <artifactId>gt-jdbc-postgis</artifactId>
   <version>${geotools.version}</version>
 </dependency>

Note that the groupId is org.geotools.jdbc for this and other JDBC plugin modules.

Connection Parameters

Parameter

Description

dbtype

Must be the string postgis

host

Machine name or IP address to connect to

port

Port number to connect to, default 5432

schema

The database schema to access

database

The database to connect to

user

User name

passwd

Password

Creation

Connect using DataStore finder:

        Map<String, Object> params = new HashMap<>();
        params.put("dbtype", "postgis");
        params.put("host", "localhost");
        params.put("port", 5432);
        params.put("schema", "public");
        params.put("database", "database");
        params.put("user", "postgres");
        params.put("passwd", "postgres");

        DataStore dataStore = DataStoreFinder.getDataStore(params);

Advanced

Parameter

Description

loose bbox

Flag controlling loose bbox comparisons, default is true

preparedStatements

Flag controlling whether prepared statements are used, default is false

Example use:

params.put(PostgisDataStoreFactory.LOOSEBBOX, true );
params.put(PostgisDataStoreFactory.PREPARED_STATEMENTS, true );

Configuration Flags

An optimization on spatial queries can be applied, to avoid a bug with PostGIS query planner with big geometries and small bounding boxes, setting a system property.

This optimization can be enabled using a system-wide default from the command line:

java -Dorg.geotools.data.postgis.largeGeometriesOptimize=true