object transactor
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- transactor.scala
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- type Interpreter[M[_]] = FunctionK[ConnectionOp, [γ$0$]Kleisli[M, Connection, γ$0$]]
- final case class Strategy(before: free.connection.ConnectionIO[Unit], after: free.connection.ConnectionIO[Unit], oops: free.connection.ConnectionIO[Unit], always: free.connection.ConnectionIO[Unit]) extends Product with Serializable
Data type representing the common setup, error-handling, and cleanup strategy associated with an SQL transaction.
Data type representing the common setup, error-handling, and cleanup strategy associated with an SQL transaction. A
Transactor
uses aStrategy
to wrap programs prior to execution.- before
a program to prepare the connection for use
- after
a program to run on success
- oops
a program to run on failure (catch)
- always
a program to run in all cases (finally)
- sealed abstract class Transactor[M[_]] extends AnyRef
A thin wrapper around a source of database connections, an interpreter, and a strategy for running programs, parameterized over a target monad
M
and an arbitrary wrapped valueA
.A thin wrapper around a source of database connections, an interpreter, and a strategy for running programs, parameterized over a target monad
M
and an arbitrary wrapped valueA
. Given a stream or program inConnectionIO
or a program inKleisli
, aTransactor
can discharge the doobie machinery and yield an effectful stream or program inM
.- M
a target effect type; typically
IO
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- object Strategy extends Serializable
- object Transactor