Versioning

[Ben Short <be...@benshort.co.uk>]

Hi,

I'm using Jackrabbit 2. Is the following scenario possible?

                Node page = testRootNode.addNode("page");
		page.addMixin("mix:versionable");
		page.setProperty("name", "1");
		page.setProperty("published", true);

		session.save();

		session.getWorkspace().getVersionManager().checkin(page.getPath());

		session.getWorkspace().getVersionManager().checkout(page.getPath());
		page.setProperty("name", "2");
		page.setProperty("published", false);

		session.save();

		session.getWorkspace().getVersionManager().checkin(page.getPath());

At this point I would want to get the node that has the published
property set to true.

I can't see how to get the actual node from the version history so I
can query the bodes properties.

How can I proceed?

Ben Short

Re: Versioning

[Alexander Klimetschek <ak...@day.com>]

On Mon, Dec 14, 2009 at 14:53, Ben Short <be...@benshort.co.uk> wrote:
>                        Version version = it.nextVersion();
>
>                        NodeIterator nodeIterator = version.getNodes();
>
>                        while(nodeIterator.hasNext()){
>
>                                Node node = nodeIterator.nextNode();
>
>                                System.out.println(node.getProperty("name").getString() + " " +
> node.getProperty("published").getString());
>                        }
>
> Why do I need to skip passed the first version?

The original node is stored as "jcr:frozenNode" child node below the
version node. This allows the version node to contain its own
metadata, like version tags etc.

See the JCR specs (1.0 [1] and 2.0 [2]). In JCR 2.0, a helper method
Version.getFrozenNode() was added for that [3].

[1] http://www.day.com/specs/jcr/1.0/8.2.2.5_nt_version.html
[2] http://www.day.com/specs/jcr/2.0/3_Repository_Model.html#ntversion
[3] http://www.day.com/maven/jsr170/javadocs/jcr-2.0/javax/jcr/version/Version.html#getFrozenNode()

Regards,
Alex

-- 
Alexander Klimetschek
alexander.klimetschek@day.com

Re: Versioning

[Ben Short <be...@benshort.co.uk>]

OK I have found the solution..

VersionHistory versionHistory =
session.getWorkspace().getVersionManager().getVersionHistory(page.getPath());

		VersionIterator it = versionHistory.getAllVersions();
		it.skip(1);

		while ( it.hasNext()) {
			
			Version version = it.nextVersion();

			NodeIterator nodeIterator = version.getNodes();

			while(nodeIterator.hasNext()){

				Node node = nodeIterator.nextNode();

				System.out.println(node.getProperty("name").getString() + " " +
node.getProperty("published").getString());
			}

		}

Why do I need to skip passed the first version?

2009/12/14 Ben Short <be...@benshort.co.uk>:
> Hi,
>
> I'm using Jackrabbit 2. Is the following scenario possible?
>
>                Node page = testRootNode.addNode("page");
>                page.addMixin("mix:versionable");
>                page.setProperty("name", "1");
>                page.setProperty("published", true);
>
>                session.save();
>
>                session.getWorkspace().getVersionManager().checkin(page.getPath());
>
>                session.getWorkspace().getVersionManager().checkout(page.getPath());
>                page.setProperty("name", "2");
>                page.setProperty("published", false);
>
>                session.save();
>
>                session.getWorkspace().getVersionManager().checkin(page.getPath());
>
> At this point I would want to get the node that has the published
> property set to true.
>
> I can't see how to get the actual node from the version history so I
> can query the bodes properties.
>
> How can I proceed?
>
> Ben Short
>