how to compare user input data with my firestore record

问题

I want to compare the input data of a user, with my firestore record (data that is already stored in my Firebase.

Task<QuerySnapshot> pLJava = CoRef
            .whereEqualTo("ProgrammingLanguages", "Java")
            .get()
            .addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
                @Override
                public void onComplete(@NonNull Task<QuerySnapshot> task) {
                    if (task.isSuccessful()) {
                        for (QueryDocumentSnapshot document : task.getResult()) {
                            // document.getData();
                            id = document.getId();
                            if (id.contains("Java")) {

                            }

I already wrote an algorithm to query the input data. Now I want to compare the input data with my Firebase record.

Thanks for all the help in forward!

回答1:

Simply convert the document into a POJO. There's a method toObject(Class<T> valueType) in Firestore API which resolves that.

YourClass foo = document.toObject(YourClass.class);

Then, you may compare the object data with the user's input data.

来源：https://stackoverflow.com/questions/61588740/how-to-compare-user-input-data-with-my-firestore-record