gistfile1.swift

import Foundation

public struct Row {
  private let valuesByColumnNames = [String: Bindable]()
  internal init(valuesByColumnNames:[String: Bindable]) {
    self.valuesByColumnNames = valuesByColumnNames
  }
}

// General
extension Row {
  public var allColumnNames:[String] {
    return Array(self.valuesByColumnNames.keys)
  }
}

// Extracting Values
extension Row {
  public func stringValue(columnName:String) -> String? {
    return value(columnName)
  }
  
  public func intValue(columnName:String) -> Int? {
    return value(columnName)
  }
  
  public func doubleValue(columnName:String) -> Double? {
    return value(columnName)
  }

  private func value<T>(columnName:String) -> T? {
    return self.valuesByColumnNames[columnName] as? T
  }
}