##Customize ObjectMapper
If you need to customize Jackson ObjectMapper object used by the client when sending entities to the server you can access and modify its instance:
{CODE:java customize_object_mapper@ClientApi\Configuration\Serialization.java /}
##Numbers (de)serialization
RavenDB client supports out of the box all common numeric value types: int, long, double etc.
Note that although the (de)serialization of decimals is fully supported, there are server side limitations to numbers in that range.
Other number types like BigInteger must be treated using custom (de)serialization.