MongoDB: Find Subdocument in Array Matching Parameters

Question

In MongoDB I would like to find a document based on the values of a subdocument meeting certain parameters. Specifically I have a document structured like this:

Answer 1

You want to use $elemMatch.

db.foo.findOne({ data: { $elemMatch : {
  start: { $lte: 5 },
  end: { $gte: 5 }
  }}
})

Answer 2

Came across this post thinking of cheating the code which wasn't there ;) So thought of sharing the code snippet in Java using spring-data-mongodb

Mongo mongo = new Mongo("localhost", 27017);
MongoTemplate mongoTemplate = new MongoTemplate(mongo, "db");
Query query = new Query();
query.addCriteria(Criteria.where("data").elemMatch(
         Criteria.where("start").lte(5)
        .andOperator(Criteria.where("end").gte(5))));
Foo foo = mongoTemplate.findOne(query, Foo.class);