That is correct and my objection, however andreas pointed out that I was arguing an irrelevant point anyhow, I will forward his email
marcf |-----Original Message----- |From: [EMAIL PROTECTED] |[mailto:[EMAIL PROTECTED]]On Behalf Of David |Jencks |Sent: Tuesday, November 27, 2001 6:44 PM |To: Rickard Oberg |Cc: marc fleury; Andreas Schaefer; |[EMAIL PROTECTED] |Subject: Re: [JBoss-dev] Installer / Deployer Problem | | |On 2001.11.27 17:23:32 -0500 Rickard Oberg wrote: |> marc fleury wrote: |> |> > ok one of us doesn't get it, if you are "open most of the time" how do |> you |> > release the lock in the filesystem for anyone to overwrite the file ? |> I |> > could be missing it :) |> |> |> 1. URLCL wants to access "custom://somejar.jar" |> 2. It uses CustomURLHandler to get a connection to somejar.jar. This |> connection is put in cache and is never let go of. |> 3. The connection retrieved from CustomURLHandler is not a real |> connection, but merely a wrapper to a file connection. Similar to how a |> connection pool provides implementations of Connection that are only |> wrappers for real connections that can be managed by the pool. |> 4. Operations on the connection are passed on to the file connection. |> 5. When redeploy of a JAR is to be done, the wrapper is told to close |> its underlying connection |> 6. At this point there are no open connections to the JAR, so it can be |> replaced with a new file or removed. |> 7. At some point the connection wrapper is called, either by the old |> URLCL or a new one using the same connection. The file connection is |> then re-acquired, only now to the new file. |> |> See? | |So this requires an explicit undeploy of the old jar: it cannot work via an |autodeployer watching for changed timestamps, because you have to undeploy |the file first before you can change it. You sure this is better than |copying? | |david jencks |> |> /Rickard |> |> |> -- |> Rickard Öberg |> |> |> |> _______________________________________________ |> Jboss-development mailing list |> [EMAIL PROTECTED] |> https://lists.sourceforge.net/lists/listinfo/jboss-development |> |> | |_______________________________________________ |Jboss-development mailing list |[EMAIL PROTECTED] |https://lists.sourceforge.net/lists/listinfo/jboss-development _______________________________________________ Jboss-development mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-development
