/*
* public static bool operator<(MXRecord record1, MXRecord record2)
* {
* if (record1._preference > record2._preference) return false;
* if (record1._domainName > record2._domainName) return false;
* return false;
* }
*
* public static bool operator>(MXRecord record1, MXRecord record2)
* {
* if (record1._preference < record2._preference) return false;
* if (record1._domainName < record2._domainName) return false;
* return false;
* }
*/
public override bool Equals(object obj)
{
// this object isn't null
if (obj == null)
{
return(false);
}
// must be of same type
if (this.GetType() != obj.GetType())
{
return(false);
}
MXRecord mxOther = (MXRecord)obj;
// preference must match
if (mxOther._preference != _preference)
{
return(false);
}
// and so must the domain name
if (mxOther._domainName != _domainName)
{
return(false);
}
// its a match
return(true);
}
/// <summary>
/// Implements the IComparable interface so that we can sort the MX records by their
/// lowest preference
/// </summary>
/// <param name="other">the other MxRecord to compare against</param>
/// <returns>1, 0, -1</returns>
public int CompareTo(object obj)
{
MXRecord mxOther = (MXRecord)obj;
// we want to be able to sort them by preference
if (mxOther._preference < _preference)
{
return(1);
}
if (mxOther._preference > _preference)
{
return(-1);
}
// order mail servers of same preference by name
return(-mxOther._domainName.CompareTo(_domainName));
}
