Invalidate EJB Caching

Hi
I'm using Sun Application Server 8, where i'm deploying some CMPs
I was wondering how can i Invalidate the Cache SAS8 makes for each of my CMPs
In Caucho i can do this
com.caucho.ejb.admin.EJBAdmin.invalidateCache()
In WebLogic i have
public void invalidate(Object pk) throws RemoteException;
public void invalidate (Collection pks) throws RemoteException;
public void invalidateAll() throws RemoteException;
How can i do it in SAS8 ?
Thanks

Can you explain what use-case you're trying to support? Are you talking about invalidating a cache within a transaction or outisde of a transaction? Our EJB 2.x CMP implementation doesn't use a non-transactional JVM-specific cache so there's no need for the application to invalidate anything. Each new transaction will have the latest view of the database.
The only place in App Server 8 where we use a non-transactional cache is for our Read Only Bean feature.
--ken

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Regards,
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"jak" <[email protected]> wrote in message
news:3f07e7c9$[email protected]..
>
Background: Migrated from 6.1 to 8.1. Using CMP with template.j modified(migrated).
>
Problem:
1. Could not use any Entities which uses Entity Cache. It throwsweblogic.ejb20.cache.CacheFullException
during ejbLoad. My existing Cache parameters are (anyway, it is nodifferent from
6.1 where itz working fine)
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<max-beans-in-free-pool>100</max-beans-in-free-pool>
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<entity-cache>
<max-beans-in-cache>100</max-beans-in-cache>
<idle-timeout-seconds>610</idle-timeout-seconds>
<read-timeout-seconds>60</read-timeout-seconds>
<concurrency-strategy>Database</concurrency-strategy>
</entity-cache>
Is there any new configuration which needs to be set for 8.1? Redirectionto
some checklist for controlling there cache parameter would be helpful?
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specify in weblogic-ejb-jar.xml<weblogic-ejb-jar><disable-warning>BEA-010001
| BEA-010054</disable-warning>..</weblogic-ejb-jar>. I have thousands ofbeans
deployed in the server my warning message dumps my console with thesemessages
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"Marcel Zielinski" <[email protected]> wrote in message
news:[email protected]..
Hello,
I just run into the following problem:
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Vetriselvan wrote:
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Name: exception.doc
exception.doc Type: Microsoft Word Document (application/msword)
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Hi,
In order to gain better performance in our current application
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Regards,
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Ilija <[email protected]> wrote:
Thanks. I have few more questions regarding caching. I am not
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Dimitri Rakitine <[email protected]> wrote:
That's what I did - I wrote my own implementation of JMX timer.
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Ilija <[email protected]> wrote:
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Dimitri Rakitine <[email protected]> wrote:
Schedule a trigger which will invalidate RO bean(s) at midnight ?
Ilija <[email protected]> wrote:
Thank you for your suggestions Rob. I guess read only entity beansare very close
to what we need. The only issue I can see is the fact that we haveto update state
of this bean at midnight. Since we are not supposed to create threadin ejb container
what do you suggest as a way to do that?
Regards,
Ilija
Rob Woollen <[email protected]> wrote:
Ilija wrote:
Hi,
In order to gain better performance in our current application
we need to cache some data in both web and ejb tier. Data that
we need to store is not client specific (global data) and rarely
changes. In web tier we cache this kind of data in
ServletContext.I would suggest that you use the JSP Cache tags and Cache filters
in
WLS for caching in the web tier. They will allow you to cache pages
or
page fragments.
We are trying to find a way to store data in ejb
tier. In our design we use only Stateless Session Beans in which
we have JDBC calls to access DB. In particular case we need to
get some data from DB that is specific to current date. So,
ideally we would like to fetch that data when ejb server starts,
store it and refresh it at midnight. So, if this was not an ejb
application we would probably use Singleton to store this data
and have some thread that will wake up at 0:00 to refresh
state of the singleton object.
Take a look at Read-Only entity beans.
-- Rob
I would really appreciate any suggestion.
Regards,
Ilija
Dimitri--
Dimitri
Dimitri

Invalidate EJB Caching

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