7

I'm using postgresql, hibernate-spatial and postgis and expected to be able to use a SqlQuery to retrieve a Geometry object.

However whenever I try to query a Point, Polygon or Geometry eg

List list = session.createSQLQuery(
    "select geomfromewkt('SRID=1;POINT(1 1)')").list();

I get the exception:

Caused by: org.hibernate.MappingException: No Dialect mapping for JDBC type: 1111
    at org.hibernate.dialect.TypeNames.get(TypeNames.java:78)
    at org.hibernate.dialect.TypeNames.get(TypeNames.java:103)
    at org.hibernate.dialect.Dialect.getHibernateTypeName(Dialect.java:328)
    at org.hibernate.loader.custom.CustomLoader$Metadata.getHibernateType(CustomLoader.java:590)
    at org.hibernate.loader.custom.CustomLoader$ScalarResultColumnProcessor.performDiscovery(CustomLoader.java:516)
    at org.hibernate.loader.custom.CustomLoader.autoDiscoverTypes(CustomLoader.java:532)
    at org.hibernate.loader.Loader.getResultSet(Loader.java:1962)
    at org.hibernate.loader.Loader.doQuery(Loader.java:802)
    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
    at org.hibernate.loader.Loader.doList(Loader.java:2533)
    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)
    at org.hibernate.loader.Loader.list(Loader.java:2271)
    at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:316)
    at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1842)
    at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:165)
    at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:157)

hibernate.cfg.xml:

<property name="dialect">org.hibernatespatial.postgis.PostgisDialect</property>

Is this not part of the hibernate-spatial offering or am i doing something wrong?

Thanks, Paul.

Relevant libraries/versions:

  • hibernate-core-3.6.0.Final.jar
  • postgresql-9.0-801.jdbc4.jar
  • hibernate-spatial-postgis-1.1.1.jar
  • hibernate-spatial-1.1.1.jar
  • postgis-jdbc-1.3.3.jar
  • jts-1.12.jar
Chris Travers
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pstanton
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  • Is the DB spatially enabledand have the correct privileges? From the client, try `select * from geometry_columns` – Mike T Jan 21 '13 at 20:59
  • Yes the DB is all fine. I can retrieve geometries via hibernate if using mapped classes and non-native-sql type queries (criteria/hsql). – pstanton Jan 21 '13 at 21:04
  • I'm sure I have to apply the 'org.hibernatespatial.GeometryUserType' to the column somehow... – pstanton Jan 21 '13 at 22:57

2 Answers2

6

I've figured it out. I need to apply the 'GeometryUserType' to the column via a scalar.

SQLQuery qry = session.createSQLQuery("select geomfromewkt('SRID=1;POINT(1 1)') as geom");
qry.addScalar("geom", GeometryUserType.TYPE);
List<Geometry> list = qry.list();
pstanton
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  • According to [this answer](http://stackoverflow.com/a/10256646/1228324) some types were deprecated and thus removed in Hibernate 4+. Instead of `GeometryUserType.TYPE` I had to use `org.hibernate.spatial.GeometryType.INSTANCE` in Hibernate 4.1.4. – der Michi Sep 03 '15 at 16:33
1

I'm using Hibernate 5.1.0 Final, 

dao.getSession().createSQLQuery("select buffer from puntosdeinteres where puntoid = 13193")
                        .addScalar("buffer", new GeolatteGeometryType(PGGeometryTypeDescriptor.INSTANCE))
                        .uniqueResult();

And it works, but right now I find that long statement uncomfortable.

Jimmy
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