为必须断开连接的数据库应用程序设计模式

I have to design an application is mostly an interface with a database for data entry. The application must be able to work while it is disconnected from the database with cached data and insert that data when it has connection again. There will be two different modes, connected or disconnected, no need to detect disconnection in the middle of a connected session to switch to disconnected.I have to design an application is mostly an in