How to update value of specific embedded document, inside an array, of a specific document in MongoDB?

Question

I have the following structure in my document:

{
  _id : ObjectId(\"43jh4j343j4j\"), 
  array : [
            { 
              _arrayId : ObjectId(\"dsd87ds         


        

Answer 1

...and this is how to do it with mongo-driver version >= 3.1 (mine is 3.2.2):

final MongoClient mongoClient = new MongoClient(new MongoClientURI(mongoURIString));
final MongoDatabase blogDatabase = mongoClient.getDatabase("yourDB");
MongoCollection postsCollection = blogDatabase.getCollection("yourCollection");

ObjectId _id = new ObjectId("4e71b07ff391f2b283be2f95");
ObjectId arrayId = new ObjectId("4e639a918dca838d4575979c");

Bson filter = Filters.and(Filters.eq( "_id", id ), Filters.eq("array._arrayId", arrayId));
Bson setUpdate = Updates.set("array.$.someField", "updated");
postsCollection.updateOne(postFilter, setUpdate);