What is an optimal solution to store many versioned XML documents?

Question

I need to store many XML documents identified by a unique name, and keep track of their versions. I need to have an access to every document (read, update, delete) through some RESTful API. I need to maintain access control (read/write permissions) for every document (or groups of them).

Is there any solution on the market for these needs?

Btw, other supplementary features would be welcome, like XSD-validation of every new incoming change.

Answer 1

This is what I've found so far:

• eXist
• xDB
• MarkLogic

Answer 2

You could look into CouchDB: http://www.couch.io/