Class Boot {

...

 def boot {

    if (!DB.jndiJdbcConnAvailable_?) DB.defineConnectionManager(DefaultConnectionIdentifier, DBVendor)

    ...
  }

}

object DBVendor extends ConnectionManager with Logger {
  def newConnection(name: ConnectionIdentifier): Box[Connection] = {
    try {
      Class.forName("com.mysql.jdbc.Driver")
      val jdbcurl= (Props.get("db.url") openOr "") +
        "?user=" + (Props.get("db.user") openOr "") +
        "&password=" + (Props.get("db.password") openOr "") +
        "&" + Props.get("additionalurlparam").openOr("")
      debug( jdbcurl)


      val dm = DriverManager.getConnection(jdbcurl)
      Full(dm)
    } catch {
      case e : Exception => e.printStackTrace; Empty
    }
  }
  def releaseConnection(conn: Connection) {conn.close}
}