Storing Objects in a JSONArray with Java

Android Java Source

package com.couchbase.mobile;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;

import com.couchbase.lite.Database;
import com.couchbase.lite.DatabaseConfiguration;
import com.couchbase.lite.MutableDocument;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.util.Map;

public class MainActivity extends AppCompatActivity {
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    
    try {
      String json = "[ { \"id\": \"1\" }, { \"id\": \"2\" }, { \"id\": \"3\" } ]";
      ObjectMapper mapper = new ObjectMapper();
      
      DatabaseConfiguration options = new DatabaseConfiguration(this);
      
      Database database = new Database("example", options);
      
      int cnt = 0;
      
      Map<String, Object>[] maps = mapper.readValue(json, new TypeReference<Map<String, Object>[]>() {});
      
      for (Map<String, Object> map: maps) {
        MutableDocument document = new MutableDocument("map-" + cnt, map);
        database.save(document);
        
        ++cnt;
      }
      
      // or
      
      cnt = 0;
      
      SomeClass[] someClasses = mapper.readValue(json, SomeClass[].class);
      
      for (SomeClass someClass: someClasses) {
        Map properties = mapper.convertValue(someClass, Map.class);
        MutableDocument document = new MutableDocument("class-" + cnt, properties);
        database.save(document);
        
        ++cnt;
      }
      
      for (int nn = 0; nn < cnt; ++nn) {
        Log.d("ArrayStore - map: ", database.getDocument("map-" + nn).toMap().toString());
        Log.d("ArrayStore - class: ", database.getDocument("class-" + nn).toMap().toString());
      }
    } catch (Exception ex) {
      ex.printStackTrace();
    }
  }
  
  static class SomeClass {
    public String id;
    public int val;
  }
}