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2013881276V2EX 第 388476 号会员，加入于 2019-03-01 23:45:18 +08:00 |
2013881276 最近回复了
2023-06-20 16:40:18 +08:00 回复了 TWorldIsNButThis 创建的主题 › Java › 一个 Java Optional + Stream 重构的小例子 |
@anonydmer 补充完整了点：public Optional<MyLog> lastLog(final Collection<Long> shopIds) {
return Optional.ofNullable(CollectionUtil.isEmpty(shopIds) ? null : shopIds)
.map(shopIdList -> Pair.of(shopIdList, appDao.findAllId()))
.map(pair -> pair.getFirst()
.stream()
.flatMap(shopId -> {
final LocalDate end = LocalDate.now().plusDays(1);
return pair.getSecond().stream().flatMap(appId -> logDao.findLast(appId, shopId, end).stream());
})
.max(Comparator.comparing(MyLog::getTime)))
.orElse(Optional.empty());
}
return Optional.ofNullable(CollectionUtil.isEmpty(shopIds) ? null : shopIds)
.map(shopIdList -> Pair.of(shopIdList, appDao.findAllId()))
.map(pair -> pair.getFirst()
.stream()
.flatMap(shopId -> {
final LocalDate end = LocalDate.now().plusDays(1);
return pair.getSecond().stream().flatMap(appId -> logDao.findLast(appId, shopId, end).stream());
})
.max(Comparator.comparing(MyLog::getTime)))
.orElse(Optional.empty());
}
2023-05-18 10:08:11 +08:00 回复了 celo 创建的主题 › 信息安全 › 1Password 值得买吗？ |
enpass 也挺不错的可以买断，之前咸鱼 70 可买断
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