This storage implementation is very interesting in electronic document management application.

When manipulating a workflow of a content stored into a JCR repository, it may be interesting to store the workflow state in the JCR repository as well. Indeed, the integrity of the content and the workflow is ensured unlike storing the workflow state in a database. Furthermore, it is possible to query a content on both his metadatas and his workflow state.

This is a generic JCR implementation of workflow store.
A Jackrabbit implementation is also provided with a junit test.