You could use the resource-ref entry: ejb-jar.xml: <enterprise-beans> | | <session> | <ejb-name>ABC</ejb-name> | ... | <resource-ref> | <res-ref-name>myDataSource</res-ref-name> | <res-type>javax.sql.DataSource</res-type> | </resource-ref> | ... | </session> | ... | | ... | jboss.xml (for other servers, they would have their own deployment descriptor): | <enterprise-beans> | | <session> | <ejb-name>ABC</ejb-name> | ... | <resource-ref> | <res-ref-name>myDataSource</res-ref-name> | <jndi-name>java:DefaultDS</jndi-name> | </resource-ref> | ... | </session> | ... | EJB code: @Resource (name="myDataSource") | private DataSource myDS; View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4230057#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...