@Override
public void update(int id, String name, String biography, String photo) {
String set = "name = ?, biography = ?, photo = ? ";
String where = "id = ? ";
List<Object> param = Arrays.asList(name, biography, photo, id);
try {
ConnectionManager.begin();
dao.update(set, where, param);
ConnectionManager.commit();
} catch (SQLException e) {
try {
ConnectionManager.rollback();
} catch (SQLException e1) {
e1.printStackTrace();
}
throw new BookAppException(e.getMessage(), false);
}
}
@Override
public void add(Author a) {
if (a.getName() == null || a.getName().isEmpty()) {
throw new BookAppException("Author's name must be entered!", true);
}
try {
ConnectionManager.begin();
dao.insert(a);
ConnectionManager.commit();
} catch (SQLException e) {
try {
ConnectionManager.rollback();
} catch (SQLException e1) {
e1.printStackTrace();
}
throw new BookAppException(e.getMessage(), false);
}
}