A couple things.
1. Note that the current keepSessions feature is specified as a
property on the redeploy command, such as
asadmin redeploy ... --property=keepSessions=true
not as its own option.
2. Now that multiple containers will support this type of behavior, it
might be more intuitive for users to have a new option (not a
property, an option)
--keepState
which can accept one or more values identifying the container types to
enlist in the state-keeping behavior. For example:
asadmin redeploy ... --keepState=web,ejb
would cause both containers to maintain whatever "state" means to
them. Thus
... --property=keepSessions=true
and
... --keepState=web
would be equivalent.
- Tim
On Jun 9, 2010, at 1:15 PM, Marina Vatkina wrote:
> Bill, Arch team,
>
> EJB enhancement for GlassFish 3.1 proposes support for retaining
> SFSB / EJB Timer state across redeployment (see section 4.1.5 in http://wiki.glassfish.java.net/Wiki.jsp?page=GlassFishv3.1EJBOnePager)
> .
>
> The original proposal was to add a new CLI option to 'asadmin
> redeploy' for this purpose called 'keepEjbState' in addtion to the
> existing 'keepSession' option.
>
> While having two separate options clearly identifies the intent of
> the operation, it can be confusing to the user who has both, a web
> component and an ejb component in their application (in particular
> with Java EE 6 allowing to combine both in a single WAR). On the
> other hand, eusing 'keepSession' option for both purposes can be
> confusing for applications that do not have a web component.
>
> One more question: would it make sense to rename 'keepEjbState' to
> 'keepState' for future (non-EJB) extensions? If yes, would it be
> even more confusing to have both options around?
>
> Here are the choices that we are looking at:
> 1. Add 'keepEjbState' in addtion to 'keepSession'
> 2a. Add 'keepState' in addtion to 'keepSession'
> 2b. Deprecate 'keepSession', and use 'keepState' instead
> 3. Reuse 'keepSession' for any 'keep' option.
>
> Please advice.
>
> thanks,
> -marina
Tim Quinn | Principal Member of Technical Staff | +1.847.604.9475
Oracle GlassFish Engineering
Lake Forest, IL