public Node CreateSubNode(int key)
{
if (key < 0)
throw new RepositoryException("negative key not allowed");
if (_subNodes == null)
_subNodes = new SubNodeWithListOfSubNodes(this);
return _subNodes.CreateSubNode(key);
}
public Node CreateSubNode(string key)
{
if (string.IsNullOrEmpty(key))
throw new RepositoryException("null string key not allowed");
if (_subNodes == null)
_subNodes = new SubNodeWithDictionaryOfSubNodes(this);
return _subNodes.CreateSubNode(key);
}
