/
UnmanagedSession.scala
36 lines (28 loc) · 1.04 KB
/
UnmanagedSession.scala
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package scala.slick.jdbc
import java.sql.Connection
import scala.slick.SlickException
/** A JDBC Session which is not managed by Slick. You can use this to wrap an
* existing JDBC Connection. Override 'database' and 'performRollback'
* as needed. */
class UnmanagedSession(val conn: Connection) extends JdbcBackend.SessionDef {
protected var open = true
protected var doRollback = false
protected var inTransaction = false
lazy val metaData = conn.getMetaData()
lazy val capabilities = new JdbcBackend.DatabaseCapabilities(this)
def close() = open = false
def rollback() = doRollback = true
def database: JdbcBackend.Database =
throw new SlickException("No Database available for UnmanagedSession")
def performRollback(): Unit =
throw new SlickException("Cannot roll back UnmanagedSession")
def withTransaction[T](f: => T): T = if(inTransaction) f else {
inTransaction = true
try {
doRollback = false
val res = f
if(doRollback) performRollback()
res
} finally inTransaction = false
}
}