Hi,
I believe Weblogic implements a "Read Only" JNDI service. After server
initialization, you cannot bind anything to the JNDI tree.
Gene
-----Original Message-----
From: A mailing list for Enterprise JavaBeans development
To: [EMAIL PROTECTED]
Sent: 8/26/00 5:13 AM
Subject: Re: How can JNDI be used in EJBs, servlets, etc?
Joel,
I don't believe that the EJB spec specifically precludes writing state
information
to the JNDI tree, in the form of serializable objects. However, if the
application
you are designing uses multiple EJB Server instances (for load balancing
and/or
failover), you may have a portability issue. For example, WebLogic
synchronizes
changes to the JNDI repository across servers in a cluster. BlueStone's
JNDI
service that runs in their UBS does not (they have a different
mechanism, called
a state server that is used to persist serialized objects). I'm not
sure what approach
other vendors take.
So like many other things in EJB, the answer really depends on how
important
portability across EJB vendors is to your applications architecture.
Hope this helps.
> -----Original Message-----
> From: Joel Shellman [mailto:[EMAIL PROTECTED]]
> Sent: Friday, August 25, 2000 11:43 AM
> Subject: How can JNDI be used in EJBs, servlets, etc?
>
>
> Not a strictly EJB question but rather how JNDI can be used for EJBs:
>
> This brings up a question I had. It seems to me I heard somewhere that
> writing to the JNDI environment is either discouraged or disallowed. I
> was thinking using JNDI for some synching and communication would be
> very convenient. I also read just yesterday in a book suggesting using
> JNDI for temporary storage of some information.
>
> Is it okay to use JNDI for temporary information storage/communication
> or should that be avoided? How scalable is using JNDI for such
purposes?
> ie. what's the overhead of say looking up and getting
> "java:comp/env/my/object"? Also, is that location writable by beans
and
> clients (J2EE clients such as servlets and the like)?
>
> Thanks,
> --
> Joel Shellman
> Chief Software Architect
> The virally-driven B2B marketplace for outsourcing projects
> http://www.ants.com/90589781
>
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