xdoclet for ibatis

[Dodo]

How come there is no hibernate xdoclet equivalent of ibatis xdoclet?   Is it really a bad idea to use xdoclet in POJOs to generate 1 to many, 1 to 1, many to many, many to 1 relationship in sql mapping file?   I am very tempted to write such feature in xDoclet.   Thanks   Sam