MongoTemplate Criteria Query

Question

I\'m generating a complicated Mongo query depending on multiple parameters. One of criterion that I want to make with Criteria helper class is:

Answer 1

Query query = new Query(Criteria.where("field1").exists(true).ne(false));

Or, if field1 is always a boolean value when present:

Query query = new Query(Criteria.where("field1").is(true));

Answer 2

Since you can’t use Criteria.and() to add multiple criteria into the same field, use Criteria.andOperator() as follows:

Query query = new Query();
query.addCriteria(
    new Criteria().andOperator(
        Criteria.where("field1").exists(true),
        Criteria.where("field1").ne(false)
    )
);

List<Foo> result = mongoTemplate.find(query, Foo.class);
System.out.println("query - " + query.toString());

for (Foo foo : result) {
    System.out.println("result - " + foo);
}