Define the target type the result should be mapped to.
Skip this step if you are anyway fine with the default conversion.
Object
(the default)
- Result is mapped according to the
BsonType
converting eg. BsonString
into
plain String
, BsonInt64
to Long
, etc. always picking the most concrete type with
respect to the domain types property.
Any BsonType.DOCUMENT
is run through the EntityReader
to obtain the domain type.
Using Object
also works for non strictly typed fields. Eg. a mixture different types like fields using
String
in one Document
while Long
in another.
- Any Simple type like
String
, Long
, ...
- The result is mapped directly by the MongoDB Java driver and the
Codecs
in
place. This works only for results where all documents considered for the operation use the very same type for
the field.
- Any Domain type
- Domain types can only be mapped if the if the result of the actual
distinct()
operation returns
BsonType.DOCUMENT
.
BsonValue
- Using
BsonValue
allows retrieval of the raw driver specific format, which returns eg.
BsonString
.