Android Room_第2页-阿里云

Android Room onDelete级联无法正常工作

所以我有一个带有Deck表，Card表和DeckCard表的数据库，因为这两者之间存在多对多的关系...当我尝试删除卡片组时，我删除了ID匹配的DeckCard行并且我已经将外键设置为onDelete = CASCADE，但是它没有删除任何提示吗？这是我n对n区别的存储库 public class ...

Android使用Room持久化SQLite

原文链接前言 Android中提供了SQLite数据库进行数据的持久化，并提供了对应API访问数据库，而Room框架提供了SQLite数据访问抽象层，为高效的数据库访问层带来便捷 APP可以缓存用户数据，当APP离线时便从SQLite读取数据，当重新连线时即可完成和服务器数据的同步谷歌官方强烈...

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Android Room联合AsyncListUtil实现RecyclerView分页加载ORM数据

Android Room联合AsyncListUtil实现RecyclerView分页加载ORM数据我之前写了一系列关于AsyncListUtil实现RecyclerView和ListView的分页加载机制和技术路线，见附录文章4,5。同时也写了一些列文章介绍Android官方推出的ORM数据库：...

【原创译文】深入理解Android为什么不允许Room数据库对象间（外键）引用

【原创译文】深入理解Android为什么不允许Room数据库对象间（外键）引用译者zhangphil@csdn注：当我开始使用Android Room技术时候，Room明确禁止对象间外键引用，让我感觉不可思议，也觉得不正常，因为对象间引用几乎是所有ORM数据库技术非常普遍的设计和理念，并且这对开发...

Android官方ORM数据库Room技术解决方案：@Embedded内嵌对象（二）

Android官方ORM数据库Room技术解决方案：@Embedded内嵌对象（二）（一）附录1简介了Android Room的基本使用。在附录1例子中，User对象元素均为普通的Java基本数据类型，但是实际的开发中，通常建立的持久化存储对象复杂，且通常是结构化的Java对象，互相之间存在引用或...

Android官方ORM数据库Room技术解决方案简介（一）

是时候该忘记Android SQLite了！Android官方ORM数据库Room技术解决方案简介（一） Android的Romm是Android官方整合出来的一揽子ORM数据库解决方案。Android Room和历史上的ORM数据库如Android ORMLite（见附录文章1,2），Androi...

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更新时间 2023-08-16 06:35:52

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