@Override
public QueryResult<LibraryBook> findUnread() {
return helper.findByField(
LibraryDatabaseHelper.Field.date_last_read,
null,
LibraryDatabaseHelper.Field.title,
LibraryDatabaseHelper.Order.ASC);
}
@Override
public LibraryBook getBook(String fileName) {
QueryResult<LibraryBook> booksByFile =
helper.findByField(LibraryDatabaseHelper.Field.file_name, fileName, null, Order.ASC);
switch (booksByFile.getSize()) {
case 0:
return null;
case 1:
return booksByFile.getItemAt(0);
default:
throw new IllegalStateException("Non unique file-name: " + fileName);
}
}
