* @param fieldName именя поля
* @return
* @throws JIException
*/
public OCVariant getValue(String fieldName) throws JIException {
OCTypeDescription description = null;
if (stringTypeCache.containsKey(fieldName)) {
description = stringTypeCache.get(fieldName);
} else {
description = getColumns().getColumn(fieldName).getValueType();
stringTypeCache.put(fieldName, description);