void addFrom(String name, JoinSequence joinSequence) throws QueryException {
fromTypes.add(name);
addJoin(name, joinSequence);
}
void addFromJoinOnly(String name, JoinSequence joinSequence) throws QueryException {
addJoin(name, joinSequence.getFromPart());
}
void addFromCollection(String name, String collectionRole, JoinSequence joinSequence)
throws QueryException {
// register collection role
addCollection(name, collectionRole);
addJoin(name, joinSequence);
}