Hi, I have a use case that users need a mechanism that they can play/work with the data in the repository then they decide that they did sth wrong they want to give up all the changes since and start from fresh again. I.e., they want to clean up the whole repository, then import fresh data from a xml file again. This is currently done by calling Node.remove() on the root node of the repository, then calling Workspace().importXML to import data from a xml file which was dumped from the repository previously by Session.exportSystemView(). I expect this will give me a brand new repository. However the newly imported nodes still have version history information from the old repository. A closer look shows that this is because the newly imported nodes still have the same UUID as the nodes in the old repository as the xml dump file contains UUID for every nodes. The VersionHistory is never cleaned thus it always returns uncleaned version information for the same UUID even though that node has been removed and recreated.
I understand for this post [1] that VersionHistory is not designed to be removed completely. However I believe my use case described about is still a valid one, isn't it? Surely I can traverse every nodes in my repository then call VersionHistory.removeVersion() on each versions. But given the fact that I may have thousands of nodes in my repository this does not sound like a practical solution. There must be a way to tell VersionHistory that all history information it contains has become invalid please clean yourself up, right? If playing with VersionHistory is not the way out, I wonder if there is a different way to clean up the whole repository more thoroughly instead of using Node.remove() on the root node? As all I want is to set the repository to an absolute clean stage before Workspace().importXML is called. For example, is Workspace.deleteWorkspace() designed to do this job? However, Workspace.deleteWorkspace() throws UnsupportedRepositoryOperationException with JackRabbit version 2.1. Any comments or suggestions will be highly welcome. Thanks! [1]. http://jackrabbit.510166.n4.nabble.com/Deleting-a-node-also-delete-version-history-of-the-node-td522136.html Jervis Liu
