setting session bean's pool size for jbossjboss-4.0.3RC1

[jinesh parikh]

Is it possible to define a pool size of stateless session beans instances for jboss-4.0.3RC1 application server? if yes in which jboss configuration file i have to made that change and what change i have to make?

if somebody has good pdf regarding the jboss-4.0.3RC1 please send me the link

[Jaikiran Pai]

There's a file named standardjboss.xml in %JBOSS_HOME%/server/default/conf folder which has the following entry. Try changing the value to whatever pool size you want. I havent tried this before and am not sure whether this is going to work. Give it a try.

<container-configuration>
      <container-name>Standard Stateless SessionBean</container-name>
      <call-logging>false</call-logging>
      <invoker-proxy-binding-name>stateless-rmi-invoker</invoker-proxy-binding-name>
      <container-interceptors>
        <interceptor>org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor</interceptor>
        <interceptor>org.jboss.ejb.plugins.LogInterceptor</interceptor>
        <interceptor>org.jboss.ejb.plugins.SecurityInterceptor</interceptor>
        <!-- CMT -->
        <interceptor transaction="Container">org.jboss.ejb.plugins.TxInterceptorCMT</interceptor>
        <interceptor transaction="Container">org.jboss.ejb.plugins.CallValidationInterceptor</interceptor>
        <interceptor transaction="Container">org.jboss.ws.server.ServiceEndpointInterceptor</interceptor>
        <interceptor transaction="Container">org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor</interceptor>
        <!-- BMT -->
        <interceptor transaction="Bean">org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor</interceptor>
        <interceptor transaction="Bean">org.jboss.ejb.plugins.TxInterceptorBMT</interceptor>
        <interceptor transaction="Bean">org.jboss.ejb.plugins.CallValidationInterceptor</interceptor>
        <interceptor transaction="Bean">org.jboss.ws.server.ServiceEndpointInterceptor</interceptor>
        <interceptor>org.jboss.resource.connectionmanager.CachedConnectionInterceptor</interceptor>
      </container-interceptors>
      <instance-pool>org.jboss.ejb.plugins.StatelessSessionInstancePool</instance-pool>
      <instance-cache></instance-cache>
      <persistence-manager></persistence-manager>
      [B]<container-pool-conf>
        <MaximumSize>100</MaximumSize>
      </container-pool-conf>[/B]   
 </container-configuration>

[ May 01, 2007: Message edited by: Jaikiran Pai ]

[jinesh parikh]

thanks for the reply kiran.

i want to know if i want to create certain session beans objects when the application server starts up which jboss file should i changed ?i am using the jboss4.0.3

[Jaikiran Pai]

I havent tried that before. Could you explain more about your usecase? Why are you trying to create session beans when the server is starting?

[jinesh parikh]

thanks kiran for your reply.
currently i am learing ejb so i am doing various kinds of r&d.i am trying to create an example,in which i could create 10 session beans on startup of application server(jboss-4.0.3.RC1)

[Mark Spritzler]

See the thing is, that is what an EJB Container is there for, and that a developer should not ever want or need to deal with. The Container is responsible for creating instances of EJBs, not the developer. You cannot instantiate a Bean and get all the hooks that is needed for things like Security, and Proxy object, and such.

So, as to your question, no you cannot create "10" session beans at startup. If you set your min size of the pool to 10, then you will have 10 session beans created at App Server startup, all created for you without any extra coding needed.

Mark