I\'m using CXF 2.2.12 library for my Web Services.
Is it possible to use MTOM (Message Transmission Optimization Mechanism
MTOM is specific to SOAP so I would argue that it is incompatible with a RESTful architecture. However, HTTP supports multi-part content naturally, so you can do everything that MTOM does in HTTP directly.
If you really wanted you could use XOP for packaging your multi-part content like MTOM does, but it really isn't necessary.
MTOM is solving a problem that HTTP already solved.