Werner Daehn created OLINGO-1523:
------------------------------------
Summary: Reading Geo data from database
Key: OLINGO-1523
URL: https://issues.apache.org/jira/browse/OLINGO-1523
Project: Olingo
Issue Type: Bug
Components: odata4-server
Affects Versions: (Java) V4 4.8.0
Reporter: Werner Daehn
I am reading a column GEODATA of type ST_GEOMETRY datatype from SAP Hana via
JDBC. Obviously what that returns is a byte[] of the Hana internal
representation. Does not help.
So I use the Hana Spatial method GEODATA.ST_AsGeoJSON() to get one of the many
supported standard geo representations.
In the collection processor the value gets assigned:
{code:java}
row.addProperty(new Property(null, propertyname, ValueType.GEOSPATIAL,
value));{code}
The value is of type text and the type is GEOSPATIAL, this results in a cast
exception
{code:java}
class java.lang.String cannot be cast to class
org.apache.olingo.commons.api.edm.geo.Geospatial{code}
All understandable. I would need to parse the GeoJson (or whatever format),
translate that into a olingo native Geometry objects so that the serializer can
then convert that to geojson when the $format=json.
That raises two questions:
# Is there a support for that conversion built in?
# Can't there be a shortcut to assign GeoJson and return GeoJson?
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
