Treating an SQL ResultSet like a Scala Stream

Question

When I query a database and receive a (forward-only, read-only) ResultSet back, the ResultSet acts like a list of database rows.

I am trying to find some way to trea

Answer 1

This implementation, although longer and clumsier it is in better correspondence with the ResultSet contract. The side-effect has been removed from hasNext(...) and moved into next().

new Iterator[String] {
  private var available = resultSet.next()
  override def hasNext: Boolean = available
  override def next(): String = {
    val string = resultSet.getString(1)
    available = resultSet.next()
    string
  }
}