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public class EmployeeService {
    private static EmployeeDao dao = new EmployeeSimpleDao();

    public static List<Employee> getAllEmployees() {
        return dao.getAllEmployees();
    }

    public static void updateEmployee(Employee emp) {
        dao.update(emp);
    }

    public static void deleteEmployee(Integer id) {
        dao.delete(id);
    }

    public static Employee getEmployee(Integer id) {
        return dao.getEmployee(id);
    }

    public static void insertEmployee(Employee emp) {
        dao.insert(emp);
    }
}

public class EmployeeFacadeBean implements SessionBean {

    private SessionContext sessionCtx;

    public void setSessionContext(SessionContext sessionCtx) throws EJBException {
        this.sessionCtx = sessionCtx;
    }

    public void ejbCreate() throws CreateException {}
    public void ejbRemove() throws EJBException {}
    public void ejbActivate() throws EJBException {}
    public void ejbPassivate() throws EJBException {}

    public List<Employee> getAllEmployees() throws EJBException {
        return EmployeeService.getAllEmployees();
    }

    public void updateEmployee(Employee emp)throws EJBException  {
        EmployeeService.updateEmployee(emp);
    }

    public void deleteEmployee(Integer id) throws EJBException  {
        EmployeeService.deleteEmployee(id);
    }

    public  Employee getEmployee(Integer id) throws EJBException  {
        return EmployeeService.getEmployee(id);
    }

    public void insertEmployee(Employee emp) throws EJBException  {
        EmployeeService.insertEmployee(emp);
    }
}

import java.rmi.RemoteException;
import java.util.List;

public interface EmployeeFacadeRemote extends javax.ejb.EJBObject {
    public List<Employee> getAllEmployees() throws RemoteException;

    public void updateEmployee(Employee emp) throws RemoteException;

    public void deleteEmployee(Integer id) throws RemoteException;

    public Employee getEmployee(Integer id) throws RemoteException;

    public void insertEmployee(Employee emp) throws RemoteException;

}

import javax.ejb.CreateException;
import javax.ejb.EJBHome;

public interface EmployeeFacadeRemoteHome extends EJBHome {
    public static final String COMP_NAME = "java:comp/env/ejb/EmployeeFacade";
    public static final String JNDI_NAME = "ejb/EmployeeFacadeRemote";

    public EmployeeFacadeRemote create() throws CreateException;
}

<?xml version="1.0" encoding="UTF-8"?>

<ejb-jar xmlns="http://java.sun.com/xml/ns/j2ee"
	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>ejb-jar.xml for rr-employee-ejb</description>
	<display-name>ejb-jar.xml</display-name>

	<enterprise-beans>
		<!-- Session Beans -->
		<session>
			<description>EmployeeFacade Session Bean</description>
			<display-name>EmployeeFacade Session Bean</display-name>
			<ejb-name>EmployeeFacade</ejb-name>
			<home>net.reumann.ejb.EmployeeFacadeRemoteHome</home>
			<remote>net.reumann.ejb.EmployeeFacadeRemote</remote>
			<local-home>
				net.reumann.ejb.EmployeeFacadeLocalHome
			</local-home>
			<local>net.reumann.ejb.EmployeeFacadeLocal</local>
			<ejb-class>net.reumann.ejb.EmployeeFacadeBean</ejb-class>
			<session-type>Stateless</session-type>
			<transaction-type>Container</transaction-type>
		</session>
	</enterprise-beans>

	<assembly-descriptor>
		<container-transaction>
			<method>
				<ejb-name>EmployeeFacade</ejb-name>
				<method-intf>Local</method-intf>
				<method-name>getAllEmployees</method-name>
				<method-params></method-params>
			</method>
			<trans-attribute>Required</trans-attribute>
		</container-transaction>
		<container-transaction>
			<method>
				<ejb-name>EmployeeFacade</ejb-name>
				<method-intf>Local</method-intf>
				<method-name>updateEmployee</method-name>
				<method-params>
					<method-param>net.reumann.common.vo.Employee</method-param>
				</method-params>
			</method>
			<trans-attribute>Required</trans-attribute>
		</container-transaction>
		<container-transaction>
			<method>
				<ejb-name>EmployeeFacade</ejb-name>
				<method-intf>Local</method-intf>
				<method-name>deleteEmployee</method-name>
				<method-params>
					<method-param>java.lang.Integer</method-param>
				</method-params>
			</method>
			<trans-attribute>Required</trans-attribute>
		</container-transaction>
	....	
	</assembly-descriptor>

</ejb-jar>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE jboss PUBLIC "-//JBoss//DTD JBOSS 4.0//EN" "http://www.jboss.org/j2ee/dtd/jboss_4_0.dtd">
<jboss>
	<enterprise-beans>
		<session>
			<ejb-name>EmployeeFacade</ejb-name>
			<jndi-name>ejb/EmployeeFacadeRemote</jndi-name>
			<local-jndi-name>EmployeeFacadeLocal</local-jndi-name>
			<method-attributes></method-attributes>
		</session>
	</enterprise-beans>
	<assembly-descriptor></assembly-descriptor>
	<resource-managers></resource-managers>
</jboss>

public class ServiceLocator {
    ...
    public static EJBHome getEjbRemoteHome(String remoteHomeJndiName, Class ejbRemoteHomeClass) throws ServiceLocatorException {
        EJBHome remoteHome = null;

        try {
            /*
            InitialContext will look for a jndi.properties in classpath.
            we defined out jndi.properties in the jndi dir of this project
            and the build puts in the classes dir in the common package
             
            use jndi.properties, but if you wanted to do it with code, you'd do: 
            Properties env = new Properties();
            env.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
            env.put(Context.PROVIDER_URL, "someIP:1099");   
            env.put("java.naming.factory.url.pkgs", "org.jboss.naming:org.jnp.interfaces"); 
            Context ctx = new InitialContext(env);
            */
            Context ctx = new InitialContext();
            Object narrowFromObj = ctx.lookup(remoteHomeJndiName);
            remoteHome = (EJBHome) PortableRemoteObject.narrow(narrowFromObj, ejbRemoteHomeClass);
        } catch (ClassCastException cce) {
            throw new ServiceLocatorException(cce);
        } catch (NamingException ne) {
            throw new ServiceLocatorException(ne);
        }

        return remoteHome;
    }   ...
}

EmployeeFacadeRemoteHome employeeHome = 
    (EmployeeFacadeRemoteHome) ServiceLocator.getEjbRemoteHome(EmployeeFacadeRemoteHome.JNDI_NAME, 
    EmployeeFacadeRemoteHome.class);
EmployeeFacadeRemote employeeEJB = employeeHome.create();
List<Employee> employees = employeeEJB.getAllEmployees();

<?xml version="1.0" encoding="UTF-8"?>
<application xmlns="http://java.sun.com/xml/ns/j2ee"
             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/application_1_4.xsd"
             version="1.4">
    <display-name>rr-employee-ejb EAR</display-name>
    <module>
        conf.jar
    </module>    
    <module>
        <java>common.jar</java>
    </module>
    <module>
        <java>persistence.jar</java>
    </module>
    <module>
        <ejb>employee-ejb.jar</ejb>
    </module>
</application>
</code></pre></div>