android - 如何一次组合多个解析查询

Question

我有两个解析查询，我想通过单击按钮对其进行评估。我在 Parse 中有两个类(class)。我想同时检查这两件事。我的查询是:

                ParseQuery<ParseObject> query =ParseQuery.getQuery("Login");
                query.whereEqualTo("x",X);
                query.whereEqualTo("y",Y);

在登录的同时，我正在检查两个实体之间的关系。我的第二个查询是:

                ParseQuery<ParseObject> query1 =ParseQuery.getQuery("UserData");
                query.whereEqualTo("entity1",entity1);
                query.whereEqualTo("entity2",entity2);

现在，如果两个查询都成功，则用户可以处理该应用程序。我怎样才能组合这两个查询，以便两个查询都必须成功

Answer 1

使用复合查询。下面的示例取自 www.parse.com 上的 Parse Docs

ParseQuery<ParseObject> lotsOfWins = ParseQuery.getQuery("Player");
lotsOfWins.whereGreaterThan(150);

ParseQuery<ParseObject> fewWins = ParseQuery.getQuery("Player");
fewWins.whereLessThan(5);

List<ParseQuery<ParseObject>> queries = new ArrayList<ParseQuery<ParseObject>>();
queries.add(lotsOfWins);
queries.add(fewWins);

ParseQuery<ParseObject> mainQuery = ParseQuery.or(queries);
mainQuery.findInBackground(new FindCallback<ParseObject>() {
  public void done(List<ParseObject> results, ParseException e) {
    // results has the list of players that win a lot or haven't won much.
  }
});