Mailing-List: contact users-help@jackrabbit.apache.org; run by ezmlm
Precedence: bulk
Reply-To: users@jackrabbit.apache.org
Received-SPF: pass (nike.apache.org: domain of jan.grathwohl@kontrast.de
 designates 217.69.78.1 as permitted sender)
Mime-Version: 1.0 (Apple Message framework v752.3)
To: Jackrabbit Users List <users@jackrabbit.apache.org>
Message-Id: <4CB71494-AAD6-4E65-B686-3F3DA593EBE0@kontrast.de>
Content-Type: multipart/alternative; boundary=Apple-Mail-3-137002262
From: Jan Grathwohl <jan.grathwohl@kontrast.de>
Subject: Transaction over multiple workspaces?
Date: Tue, 4 Sep 2007 11:19:59 +0200

--Apple-Mail-3-137002262
Content-Transfer-Encoding: 7bit
Content-Type: text/plain;
	charset=US-ASCII;
	delsp=yes;
	format=flowed

Hi,

is it possible in Jackrabbit to have a transaction that spans  
multiple workspaces? What I would like to do is to start a  
UserTransaction, write changes to several Jackrabbit workspaces (all  
from the same repository) and a Hibernate session, and then commit  
all these changes together. My application modifies several  
workspaces concurrently, and I would like to ensure that all these  
changes are either commited or rolled back completely.

I have set up a JCA deployment of Jackrabbit 1.3.1 in JBoss , and it  
works fine as long as I only use one session per transaction. It  
looks from my tests like it is not possible to open more than one  
session within a transaction, and I also found a thread on the  
mailing list that says something like that.

But if I want to work in multiple workspaces, I have to open multiple  
sessions, because session are always per-workspace, right?

So my code to edit multiple workspaces within one transaction would be

		InitialContext ctx = new InitialContext();

		UserTransaction utx = (UserTransaction)ctx.lookup("java:comp/ 
UserTransaction");
		utx.begin();

		Repository repo = (Repository)ctx.lookup("java:jcr/local");
		Session session1 = repo.login(new SimpleCredentials("admin",  
"admin".toCharArray()), "workspace1");	
		Session session2 = repo.login(new SimpleCredentials("admin",  
"admin".toCharArray()), "workspace2");
		
		// Use session1 to write changes to workspace1
		
		// Use session2 to write changes to workspace2
		
		session1.save();
		session2.save();
		
		utx.commit();

which doesn't work.

Is there any way to include multiple workspaces within the scope of  
one transaction?


Thank you.

Jan


--Apple-Mail-3-137002262--