/// <summary>
/// Copy function.
/// </summary>
/// <param name="historyValue">HistoryValue.</param>
public void CopyTo(HistoryValue historyValue)
{
if (historyValue == null)
{
throw new ArgumentNullException();
}
historyValue.Value = Value;
historyValue.OldValue = OldValue;
historyValue.Status = Status;
}
/// <summary>
/// Compare objects that derived from HistoryValue.
/// </summary>
/// <param name="obj1">Object 1.</param>
/// <param name="obj2">Object 2.</param>
/// <returns>true for equal
/// (null, null) => equal
/// (null, deleted) => equal
/// (deleted, deleted) => equal.
/// </returns>
public static bool Equals(HistoryValue obj1, HistoryValue obj2)
{
bool equal = false;
if (obj1 != null)
{
if (obj2 != null)
{
equal = obj1.Equals(obj2);
}
else
{
if (obj1.Status == Lexicon.LexiconStatus.Deleted)
{
// deleted == null
equal = true;
}
}
}
else if (obj2 != null)
{
if (obj2.Status == Lexicon.LexiconStatus.Deleted)
{
// null == deleted
equal = true;
}
}
else
{
// null == null
equal = true;
}
return equal;
}
