Simple extension to PostGIS dialect for Hibernate

PostgisDialectExtensions.java

package com.geomusings.dialect;

//import org.hibernate.dialect.PostgreSQLDialect;
import org.hibernate.dialect.function.StandardSQLFunction;
import org.hibernate.type.CustomType;
import org.hibernate.type.StandardBasicTypes;
import org.hibernate.type.Type;
import org.hibernate.spatial.dialect.postgis.PostgisDialect;
import org.hibernate.usertype.UserType;
import org.hibernate.spatial.SpatialAggregate;
import org.hibernate.spatial.SpatialDialect;
import org.hibernate.spatial.SpatialFunction;
import org.hibernate.spatial.SpatialRelation;
/**
 *
 * @author dollinsw
 */
public class PostgisDialectExtensions extends PostgisDialect {
    public PostgisDialectExtensions(){
        super();
        registerFunction("asgeojson", new StandardSQLFunction("st_asgeojson",
                StandardBasicTypes.STRING));
        registerFunction("asgml", new StandardSQLFunction("st_asgml",
                StandardBasicTypes.STRING));
        registerFunction("askml", new StandardSQLFunction("st_askml",
                StandardBasicTypes.STRING));
        registerFunction("srid", new StandardSQLFunction("st_srid",
                StandardBasicTypes.INTEGER));
    }
}