Filling out a Java model's attributes in a generic, clean way.

Model.java

  /**
     * Generic loadData method.  Any parameter that matches a column will
     * have data loaded.
     * @param resultSet The result set from the database query
     * @throws IllegalAccessException The requested field couldn't be accessed
     */
    private void loadData(ResultSet resultSet) throws IllegalAccessException {
        Field[] fields = getClass().getDeclaredFields();

        for (Field f : fields) {
            try {
                String fieldName = sqlDriver.getDatabaseColumn(f.getName());
                f.set(this, resultSet.getObject(fieldName));
            } catch (SQLException e) {
                // Not a field
            }
        }
    }

SQLDriver.java

  /**
  * Manipulate string from Camel Case to underscore
  * @param fieldName The field name to translate
  * @return The translated name
  */
  public String getDatabaseColumn(String fieldName) {
      return fieldName.replaceAll("([A-Z])", "_$1").toLowerCase();
  }