return mcf.gds.isc_get_segment(blob, len);
try { return mcf.gds.isc_get_segment(blob, len); } catch (GDSException ge) { checkFatal(ge); throw ge; }
    public byte[] getBlobSegment(isc_blob_handle blob, int len) throws GDSException {        return mcf.gds.isc_get_segment(blob, len);    }