exposed-wiki/DataBase-and-DataSource.md

Working with DataBase and DataSource

Every database access using Expose is starting by obtaining a connection and creating a transaction.

To get a connection:

val db = Database.connect("jdbc:h2:mem:test", driver = "org.h2.Driver")

It is also possible to provide javax.sql.DataSource for advanced behaviors such as connection pooling:

val db = Database.connect(dataSource)

• Note: Starting Exposed 0.10 executing this code more than once per db will create leaks in your application, hence it is recommended to store it for later use.

For example:

object DbSettings {
   val db by lazy { 
       Database.connect(...)
   }
}