key
Returns the key of the receiver role for the given transaction.
Return
uid of the role, if the tree of the transaction uses role ids, or the role name otherwise
Parameters
t
the desired transaction
Returns the key of the receiver role for the given tree.
Return
uid of the role, if the tree uses role ids, or the role name otherwise
Parameters
tree
the desired tree
Deprecated
Use .key(INode), .key(IBranch), .key(ITransaction) or .key(ITree)