Packages

  • package root
    Definition Classes
    root
  • package doobie

    Top-level import, providing aliases for the most commonly used types and modules from doobie-free and doobie-core.

    Top-level import, providing aliases for the most commonly used types and modules from doobie-free and doobie-core. A typical starting set of imports would be something like this.

    import cats.implicits._
    import doobie._, doobie.implicits._
    Definition Classes
    root
    See also

    The doobie microsite for much more information.

  • package util

    Collection of modules for typeclasses and other helpful bits.

    Collection of modules for typeclasses and other helpful bits.

    Definition Classes
    doobie
  • object transactor
    Definition Classes
    util
  • object Transactor
    Definition Classes
    transactor
  • fromDataSource
  • fromDriverManager
o

doobie.util.transactor.Transactor

fromDriverManager

object fromDriverManager

Module of constructors for Transactor that use the JDBC DriverManager to allocate connections. Note that DriverManager is unbounded and will happily allocate new connections until server resources are exhausted. It is usually preferable to use DataSourceTransactor with an underlying bounded connection pool (as with H2Transactor and HikariTransactor for instance). Blocking operations on DriverManagerTransactor are executed on an unbounded cached daemon thread pool, so you are also at risk of exhausting system threads. TL;DR this is fine for console apps but don't use it for a web application.

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@SuppressWarnings()
Source
transactor.scala
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  4. def apply[M[_]](driver: String, url: String, info: Properties)(implicit arg0: Async[M], arg1: ContextShift[M]): Aux[M, Unit]

    Construct a new Transactor that uses the JDBC DriverManager to allocate connections.

    Construct a new Transactor that uses the JDBC DriverManager to allocate connections.

    driver

    the class name of the JDBC driver, like "org.h2.Driver"

    url

    a connection URL, specific to your driver

    info

    a Properties containing connection information (see DriverManager.getConnection)

  5. def apply[M[_]](driver: String, url: String, user: String, pass: String)(implicit arg0: Async[M], arg1: ContextShift[M]): Aux[M, Unit]

    Construct a new Transactor that uses the JDBC DriverManager to allocate connections.

    Construct a new Transactor that uses the JDBC DriverManager to allocate connections.

    driver

    the class name of the JDBC driver, like "org.h2.Driver"

    url

    a connection URL, specific to your driver

    user

    database username

    pass

    database password

  6. def apply[M[_]](driver: String, url: String)(implicit arg0: Async[M], arg1: ContextShift[M]): Aux[M, Unit]

    Construct a new Transactor that uses the JDBC DriverManager to allocate connections.

    Construct a new Transactor that uses the JDBC DriverManager to allocate connections.

    driver

    the class name of the JDBC driver, like "org.h2.Driver"

    url

    a connection URL, specific to your driver

  7. final def asInstanceOf[T0]: T0
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