Is it possible to get collection of some ejb`s instances from container?

Scenario: I have some @Statefull bean for user session (not an HTTP session, it is web services session). And I need to manage user's session per user.

Goal: I need to have possibility to get collection of @Statefull UserSess开发者_如何学运维ion instances and control maximum number of session`s per user, and session`s life time.

Question: Is it possible to get Collection of EJB instances from EJB container, instead of storing them in some collection, map, etc?

I am using GlassFish v3, EJB 3.1, JAX-WS.

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Looks like it is not possible..