java - How to verify criteria.list is empty? -
i've created criteria retrieve list of items. although expected, no result returned if condition not work.
criteria cre = session.createcriteria(name.class,"name); cre.add(restrictions.eq("name.fname","alex"); list<name> names = (list<name>) cre.list();
i used both following 'if' conditions neither works
1) if(names.isempty()) system.err.println("cre empty"); 2) if(names != null) system.err.println("cre empty");
you can use size()
of list. if list's size 0, empty.
if(names.size() == 0){ //it empty } if(names.size() > 0){ //it **not** empty }
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