addNewChild
Creates and adds a new child of the given concept to this tree.
Return
tree with changes
Parameters
id of the parent node
child link role within the parent node
index within the child link role
the id to be used for creation
the concept of the new node
Throws
if the childId already exists
Creates and adds a new child of the given concept to this tree.
Return
tree with changes
Parameters
id of the parent node
child link role within the parent node
index within the child link role
concept reference to the concept of the new node