// Methods
public void Add(string key)
{
#region Contracts
if (string.IsNullOrEmpty(key) == true)
{
throw new ArgumentNullException();
}
#endregion
// Repository
_repository.Add(key);
}
// Methods
public void Add(string groupName)
{
#region Contracts
if (string.IsNullOrEmpty(groupName) == true)
{
throw new ArgumentNullException();
}
#endregion
lock (_syncRoot)
{
// Cache
_cacheGroupName = null;
_cacheGroupInstance = null;
// Repository
_repository.Add(groupName);
}
}