JPAQuery

public BigInteger countBackInfoTodo(BooleanBuilder builder) {
    QErpSrmBackInfo qErpSrmBackInfo = erpSrmBackInfo;
    QErpSrmInputHeader qErpSrmInputHeader = qErpSrmBackInfo.header;
    JPAQuery<ErpSrmBackInfo> query = new JPAQuery<>(entityManager);
    long result = query
        .distinct()
        .select(qErpSrmInputHeader.id)
        .from(qErpSrmBackInfo)
        .where(builder)
        .fetchCount();
    return BigInteger.valueOf(result);
}