namespace Entities
{
	using System;
	using System.Collections;
	// using System.Diagnostics.Contracts;

	public class PersonValueObject {
		private string[] _columns = { "firstname", "lastname" };
		private Hashtable _values;

		public PersonValueObject () {
			Console.WriteLine("person value object init");

			this._values = new Hashtable();

			for (int x = 0; x < _columns.Length; x++) {
				this[_columns[x]] = "";
			}
		}

		public string this[string key] {
			get {
				// Contract.Requires(key != null);
				// Contract.Requires(_values.ContainsKey(key));

				return (string) _values[key];
			}
			set {
				// Contract.Requires(key != null);
				// Contract.Requires(_values.ContainsKey(key));
				// Contract.Requires(value != null);

				_values[key] = (string) value;
			}
		}

		public void SetValues(Hashtable values) {
			IDictionaryEnumerator enumerator = values.GetEnumerator();

			while (enumerator.MoveNext()) {
				this[(string) enumerator.Key] = (string) enumerator.Value;
			}
		}

		public Hashtable GetValues() {
			return _values;
		}
	}
}