command1.execute();
if(!command1.isExist())
throw new KeyNotExistException(id, db, key);
ListList command = new ListList(id, db, key);
command.execute();
return command.getValues();
}
public void insert(int id, int db, String key, boolean beforeAfter, String pivot, String value){
InsertList command = new InsertList(id, db, key, beforeAfter, pivot, value);