EJB Clustering in JBOSS as 7
agas_4 Jan 30, 2013 12:59 AMI want to cluster EJB2.1 in Jboss 7. But the annotation @Clustered doesnt work for EJB2.1. So I have made a work around in which I use 2 xml files. 1) ejb-jar.xml (which is standard for EJB2.1) and 2) jboss-ejb3.xml (which is introduced in Jboss 7).
1) ejb-jar.xml
<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd"
version="2.1">
<description>HelloWorld deployment descriptor</description>
<display-name>HelloWorld</display-name>
<enterprise-beans>
<session>
<description> HelloWorld deployment descriptor</description>
<display-name>X</display-name>
<ejb-name>Y</ejb-name>
<home>com.ejb.HelloWorldHome</home>
<remote>com.ejb.HelloWorld</remote>
<ejb-class>com.ejb.HelloWorldBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
</session>
</enterprise-beans>
<assembly-descriptor>
<container-transaction>
<method>
<ejb-name>Y</ejb-name>
<method-name>*</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>
2) jboss-ejb3.xml
<?xml version="1.0" encoding="UTF-8"?>
<jboss:ejb-jar xmlns:jboss="http://www.jboss.com/xml/ns/javaee"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:c="urn:clustering:1.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.jboss.com/xml/ns/javaee http://www.jboss.org/j2ee/schema/jboss-ejb3-2_0.xsd
http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_1.xsd"
version="3.1"
impl-version="2.0">
<assembly-descriptor>
<c:clustering>
<ejb-name>Y</ejb-name>
<c:clustered>true</c:clustered>
</c:clustering>
</assembly-descriptor>
</jboss:ejb-jar>
In the ejb-jar.xml i have defined an EJB named "Y" and in jboss-ejb3.xml i have made this EJB "Y" clustered.
Using this the clustering for EJB2.1 is working fine.
I want to know is this the correct way to implement clustering for EJB 2.1 in Jboss as 7?