Getting ttable's columns info

I'm writing an application using C++ and OCCI driver.

try
{
  MetaData tabInfo = conn->getMetaData( tab_name, MetaData::PTYPE_TABLE );

  if(tabInfo.getInt(tabInfo.ATTR_PTYPE) != MetaData::PTYPE_TABLE)   {
error_msg = tab_name + ". Invalid table.";

			return false;
		}

		vector<MetaData> colsInfo =
tabInfo.getVector( MetaData::ATTR_LIST_COLUMNS );
		for( unsigned int i=0; i<colsInfo.size(); i++ )
		{
			cout << colsInfo[i].getString( MetaData::ATTR_NAME ) << endl;
			cout << colsInfo[i].getInt( MetaData::ATTR_PRECISION ) << endl;
			cout << colsInfo[i].getInt( MetaData::ATTR_SCALE ) << endl;
			cout << colsInfo[i].getString( MetaData::ATTR_TYPE_NAME ) << endl;
			cout << colsInfo[i].getBoolean( MetaData::ATTR_IS_NULL ) << endl;
		}


	}

	catch( SQLException & e )
	{
		retval = false;
		string str = e.getMessage();


	}

I can't get the type table's column Received on Fri Jul 18 2008 - 11:01:11 CDT