not

Performs a logical NOT operation on the specified expression and selects the documents that do not match the expression. This includes the elements that do not contain the field.

Example

class User(
    val name: String,
    val age: Int,
)

collection.find {
    User::age {
        not {
            hasType(BsonType.STRING)
        }
    }
}

External resources

• Official documentation

See also