JDBI-Scala
Some handy classes for making JDBI even nicer to use with Scala
Currently it allows you to:
- Bind case classes in SQL statements
- Bind simple scala.Option types to SQL statement arguments
- Return Options from SQL queries
- Use function literal syntax when running code in a DB transaction
Examples
Binding Case Classes
import com.gilt.jdbi.BindCaseClass
@SqlUpdate("""
insert into doo_hickeys (id, label, widget_id)
values (:dh.id, :dh.label, :dh.widgetId)
""")
def insert(@BindCaseClass("dh") dooHickey: DooHickey
Binding Option types
In application setup code:
import com.gilt.jdbi.args.OptionArgumentFactory
db.registerArgumentFactory(OptionArgumentFactory)
In your DAO:
@SqlUpdate("""
insert into widgets (label, description)
values (:label, :desc)
""")
def insert(@Bind("label") label: String, @Bind("desc") desc: Option[String])
Note that since ArgumentFactories are not recursive, your Option must contain a type which is directly compatible with JDBC.
Returning Options from queries
In application setup code:
import com.gilt.jdbi.OptionContainerFactory
db.registerContainerFactory(new OptionContainerFactory)
In your DAO:
@SqlQuery("select * from doo_hickeys where key = :key")
@SingleValueResult(classOf[DooHickey])
def findByKey(@Bind("key") key: String): Option[DooHickey]
Using function literals
import com.gilt.jdbi.Conversions._
db.inTransaction(
(h: Handle, status: TransactionStatus) => {
// transactional code
}
)
