Android:Realm + Retrofit - 序列化apiresponse

Question

前言:我正在使用Retrofit处理我的API调用和Realm(realm.io)来存储数据.

API im处理使用以下结构:

阵列响应

{
  "response":
    [
      {
        "objectField1":"abc"
        "objectField2":"abc"
        "objectField3":"abc"
        "objectField4":"abc"
      },
      {
        "objectField1":"abc"
        "objectField2":"abc"
        "objectField3":"abc"
        "objectField4":"abc"
      }
    ]
}

单个对象响应

{
  "response":
    {
      "objectField1":"abc"
      "objectField2":"abc"
      "objectField3":"abc"
      "objectField4":"abc"
    }
}

所有api响应都包含在数组(如果结果大小> 1)或对象(如果结果大小== 1)的响应对象中.

我目前的API调用如下:

@GET("/api/myEndpoint")
void getAllExampleObjects(Callback<MyRealmClass> callback);

如何将API响应(处理数组和单个对象的情况)序列化以将它们放入我的领域？

Answer 1

Christian from Realm here. If you have a single REST API call that can return both a list and a single object, you will have to do something manually. As colriot points out you will have to write your own GSON deserializer. For ideas how to write one see a very good answer in this SO post: How to handle parameters that can be an ARRAY or OBJECT in Retrofit on Android?

To get the objects into Realm you can use realm.copyToRealm(objects) in the following way:

@GET("/api/myEndpoint")
void getAllExampleObjects(Callback<List<MyRealmClass>> callback);

Callback callback = new Callback() {
    @Override
    public void success(List<MyRealmClass> objects, Response response) {
      realm.beginTransaction();
      realm.copyToRealm(objects);
      realm.commitTransaction();
    }

    @Override
    public void failure(RetrofitError retrofitError) {

    }
};