MongoDB: Search Nested Value With Java API

Let's say we have an object with structure like this:

{   "name" : John,   "contactInformation" : {         email : “john@gmail.com”,         phone: "12341621"    } }

We can query for the e.g. email field which is a nested field as follows with the Java API:

BasicDBObject searchCriteria = new BasicDBObject(); searchCriteria.put("contactInformation.email", emailToSearchFor); DBObject result = collection.findOne(searchCriteria);