If you are willing to do some DIY-ing, using finance-like encodings may be for you: See "Simple Binary Encoding" (https://www.fixtrading.org/standards/sbe/ http

If you are willing to do some DIY-ing, using finance-like encodings may be for you: See "Simple Binary Encoding" (https://www.fixtrading.org/standards/sbe/ https://www.fixtrading.org/standards/sbe/). The encoding scheme basically just uses structs with version numbering and IDs. There may be some Java code out there for SBE if you want to pull it off-the-shelf.