DbConnection.scala

trait DbConnection {
  def readOnly(): Connection
  def readWrite(): Connection
}

class PostgresDbConnection extends DbConnection {
  def readOnly() = PostgresDbHandler.getReadOnlyConnection()
  def readWrite() = PostgresDbHandler.getReadWriteConnection()
}

class InMemoryDbConnection extends DbConnection {
  def readOnly() = H2DbHandler.getReadOnlyConnection()
  def readWrite() = H2DbHandler.getReadWriteConnection()
}