Major Description
It shall be possible to execute statements like
SELECT * FROM table1, (SELECT * FROM table2 WHERE xxx) t2 WHERE table1.id = t2.id
(I know this example can be rewritten as a simple join, the actual use case is more complicated)
In the case of the Criteria object, this would suggest a call sequence like
criteria.addAlias("t2", subCriteria);
criteria.addJoin("t2.id", Table1Peer.ID);