public Setor pesquisarSetorPorDescricao(String desc){
Session session = factory.openSession();
SQLQuery query = session.createSQLQuery("SELECT {setor.*} FROM setor {setor} WHERE descricao like '"+desc+"'");
query.addEntity("setor", Setor.class);
Setor st = null;
if(query.list().size() > 0){
st = (Setor) query.list().get(0);
}