 |
When an OTFT is posted the routines are triggered to determine if roles are optional or not. We assume the roles are non optional, until we find an expression which lacks that role in it. Additionally the NOT NULL flag should overrule this optionality. |
|
|
Drawing of OP for optional roles remains the same, though is determined by the role being in the expression or not. Additionally the NOT NULL flag on roles overrules the optional role state. And the diagram drawing of OP/NN is made consistent. |
- Anonymous
