public Pattern getFieldTypePattern() {
      if (StringUtil.isEmpty(fieldType)) {
        return null;
      }
      if (fieldTypePattern ==  null) {
        try {
          fieldTypePattern = Pattern.compile(fieldType);
        } catch (PatternSyntaxException e) {
          fieldType = null;
          LOG.warn(e.getMessage());
        }
      }
      return fieldTypePattern;
    }
public Pattern getFieldTypePattern()