Scott M Stark wrote:
You can't define such a minimal container configuration without extending an
existing one. Use:
<jboss>
<container-configurations>
<container-configuration extends="Standard Stateful SessionBean">
<container-name>Stateful Session Bean MasteringEJB</container-name>
Great, my JAR deployed successfully when I copied it into $JBOSS_HOME/server/default/deploy.
I was then able to run a simple client application which uses 3 separate EJB objects (each of which is a simple stateful session bean) and does a simple task. However, what I was trying to do is limit the pool of available stateful session beans to 2, so that the ejbPassivate() and ejbActivate() methods would be called.
I also adjusted my jboss.xml to include an <enterprise-beans> element with a <session> element whose <ejb-name> is the same as the <ejb-name> I have in my ejb-jar.xml, and whose <configuration-name> is the same as the <container-name> element in my <container-configuration>. I have appended the updated contents of the jboss.xml file to the end of this email in case it is of any use.
I am guessing that this is what Brian Wallis was referring to when he said that setting a <container-pool-conf> MaximumSize is not a "hard limit". Does anyone know of another way to constrain the number of session beans? I don't have to do this, but I wanted to see this in action (self-education). Thanks again Brian and Scott for pointing me in the right direction on this.
Erik
(my jboss.xml:)
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE jboss PUBLIC
"-//JBoss//DTD JBOSS 3.0//EN"
"http://www.jboss.org/j2ee/dtd/jboss_3_0.dtd";>
<jboss>
<enterprise-beans>
<session>
<ejb-name>Count</ejb-name>
<configuration-name>
Stateful Session Bean MasteringEJB
</configuration-name>
</session>
</enterprise-beans> <container-configurations>
<container-configuration
extends="Standard Stateful SessionBean"> <container-name>
Stateful Session Bean MasteringEJB
</container-name>
<container-pool-conf>
<MaximumSize>2</MaximumSize>
<feeder-policy>
org.jboss.ejb.plugins.TimedInstancePoolFeeder
</feeder-policy>
<feeder-policy-conf>
<increment>0</increment>
<period>0</period>
</feeder-policy-conf>
</container-pool-conf>
</container-configuration>
</container-configurations>
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