code: public static <T extends Geometry> JTSGeometryExpression<T> setSRID(Expression<T> expr, int srid) {
          return geometryOperation(expr.getType(), SpatialOps.SET_SRID,
                  expr, ConstantImpl.create(srid));
      }
docs: Sets the SRID on a geometry to a particular integer value.
  
  @param expr geometry
  @param srid SRID
  @param <T>
  @return geometry