Wijzig uw TypedAggregation
deel naar hieronder en voeg students
toe veld naar StudentResults
TypedAggregation<Student> studentAggregation = Aggregation.newAggregation(Student.class,
Aggregation.group("firstName").
push("$$ROOT").as("students"));
$$ROOT zal het hele document pushen.
Bijwerken:
TypedAggregation<Student> studentAggregation = Aggregation.newAggregation(Student.class,
Aggregation.group("firstName").
push(new BasicDBObject
("_id", "$_id").append
("firstName", "$firstName").append
("lastName", "$lastName")).as("students"));