Creating EJB object of local interface from servlet

[surajmundada]

Hi,

I am trying to create a object of local interface from a servlet but not getting results.

I am deploying servlet in a WAR file and beans in JAR file, packaging them in a EAR file. For packaging, I am using Deploytool of SUN's J2EESDK 1.3.

Any helps ?

Suraj

--------------------------------------------------------------------------------------

public class UserStampServVar extends HttpServlet
{
// Variable to store the bean instances
EJB.TimeStamp.EJB.UserBMLocalHome homeUserBM;
EJB.TimeStamp.EJB.UserBMLocal theUser;

public void init(ServletConfig config) throws ServletException
{
ServletContext sctx = config.getServletContext();

try
{
InitialContext initialContext = new InitialContext();

homeUserBM = (EJB.TimeStamp.EJB.UserBMLocalHome)initialContext.lookup("java:comp/env/ejb/UserBMBean");
}
catch (Exception)
{
.........
}
}

-----------------------------------------------------------------------------------

Error is
" ejb not bound"

-----------------------------------------------------------------------------------

UserBMBean.java contains the implementation
UserBMLocalHome is local home interface
UserBMLocal is local interface

[snavjot]

can you post you web.xml and jboss-web.xnl here?

in short do you have ejb-local-ref tag in web.xml and the correponding jndi mapping in jboss-web.xml and if they present. are they right?

navjot singh

[john_anderson_ii]

public void init(ServletConfig config) throws ServletException
{
ServletContext sctx = config.getServletContext();

try
{
InitialContext initialContext = new InitialContext();

homeUserBM = (EJB.TimeStamp.EJB.UserBMLocalHome)initialContext.lookup("java:comp/env/ejb/UserBMBean");
}

It looks like you are trying to lookup a local reference from a remote object (servlet). I don't know if this is possible because I haven't ever tried before. I've always defined a Home and a Remote interface for the EJB, then use the javax.rmi.PortableRemoteObject.narrow() method on the reference context.lookup returns.


All this depends on the type of EJB you are trying to reference. If you are trying to reference entity EJBs, they should only have Local and LocalHome interfaces. If at all possible, create a Session EJB with a Home and Remote interface through which you can access the entity EJBs.

[surajmundada]

Thanks for the reply........ here are both the files:

web.xml:


<web-app>
<display-name>TestLocalWar</display-name>
<context-param>
<param-name>USERBEAN_JNDINAME</param-name>
<param-value>UserBMBean</param-value>
</context-param>

<servlet-name>UserStampServVar</servlet-name>
<display-name>UserStampServVar</display-name>
<servlet-class>EJB.TimeStamp.Servlets.UserStampServVar</servlet-class>

<servlet-mapping>
<servlet-name>UserStampServVar</servlet-name>
<url-pattern>/TestLocal</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>30</session-timeout>
</session-config>
</web-app>

--------------------------------------------------------------------------------------

ejb-jar.xml



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

<!DOCTYPE ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN' 'http://java.sun.com/dtd/ejb-jar_2_0.dtd'>

<ejb-jar>
<display-name>TestLocalJar</display-name>
<enterprise-beans>

<display-name>UserBMBean</display-name>
<ejb-name>UserBMBean</ejb-name>
EJB.TimeStamp.EJB.UserBMHome
EJB.TimeStamp.EJB.UserBM
<local-home>EJB.TimeStamp.EJB.UserBMLocalHome</local-home>
EJB.TimeStamp.EJB.UserBMLocal
<ejb-class>EJB.TimeStamp.EJB.UserBMBean</ejb-class>
<persistence-type>Bean</persistence-type>
<prim-key-class>EJB.TimeStamp.EJB.UserPK</prim-key-class>
False
<security-identity>

<use-caller-identity></use-caller-identity>
</security-identity>
<resource-ref>
<res-ref-name>java:jdbc/PostgresDS</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>

</enterprise-beans>
<assembly-descriptor>
<method-permission>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getHandle</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserOnline</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserOnline</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>isIdentical</method-name>
<method-params>
<method-param>javax.ejb.EJBLocalObject</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Home</method-intf>
<method-name>getHomeHandle</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserPwd</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserPwd</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserId</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserId</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserAdmin</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserAdmin</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserIp</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserIp</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserPwd</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserPwd</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Home</method-intf>
<method-name>getEJBMetaData</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserImage</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserImage</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>LocalHome</method-intf>
<method-name>findByPrimaryKey</method-name>
<method-params>
<method-param>EJB.TimeStamp.EJB.UserPK</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>remove</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Home</method-intf>
<method-name>findByPrimaryKey</method-name>
<method-params>
<method-param>EJB.TimeStamp.EJB.UserPK</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>remove</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getEJBLocalHome</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserOverridePwd</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserOverridePwd</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserUpdateTimestamp</method-name>
<method-params>
<method-param>java.sql.Timestamp</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserUpdateTimestamp</method-name>
<method-params>
<method-param>java.sql.Timestamp</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserAdmin</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserAdmin</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Home</method-intf>
<method-name>create</method-name>
<method-params>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>boolean</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>LocalHome</method-intf>
<method-name>create</method-name>
<method-params>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>boolean</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getPrimaryKey</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getPrimaryKey</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserIp</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserIp</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Home</method-intf>
<method-name>remove</method-name>
<method-params>
<method-param>javax.ejb.Handle</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>isIdentical</method-name>
<method-params>
<method-param>javax.ejb.EJBObject</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Home</method-intf>
<method-name>remove</method-name>
<method-params>
<method-param>java.lang.Object</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>LocalHome</method-intf>
<method-name>remove</method-name>
<method-params>
<method-param>java.lang.Object</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserName</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getEJBHome</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserName</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getAccountId</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getAccountId</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserName</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserName</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserOverridePwd</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserOverridePwd</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserUpdateTimestamp</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserUpdateTimestamp</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserOnline</method-name>
<method-params>
<method-param>boolean</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserOnline</method-name>
<method-params>
<method-param>boolean</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>LocalHome</method-intf>
<method-name>getAllUsers</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Home</method-intf>
<method-name>getAllUsers</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>


<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserImage</method-name>
<method-params />


<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserImage</method-name>
<method-params />

</method-permission>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserOnline</method-name>
<method-params>
<method-param>boolean</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserOnline</method-name>
<method-params>
<method-param>boolean</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getAccountId</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getAccountId</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>remove</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>remove</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserOverridePwd</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserOverridePwd</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Home</method-intf>
<method-name>remove</method-name>
<method-params>
<method-param>javax.ejb.Handle</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserOverridePwd</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserOverridePwd</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserIp</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserIp</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Home</method-intf>
<method-name>create</method-name>
<method-params>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>boolean</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>LocalHome</method-intf>
<method-name>create</method-name>
<method-params>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>boolean</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserId</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserId</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserImage</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserImage</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserImage</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserImage</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Home</method-intf>
<method-name>getAllUsers</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>LocalHome</method-intf>
<method-name>getAllUsers</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getHandle</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserOnline</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserOnline</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Home</method-intf>
<method-name>findByPrimaryKey</method-name>
<method-params>
<method-param>EJB.TimeStamp.EJB.UserPK</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>LocalHome</method-intf>
<method-name>findByPrimaryKey</method-name>
<method-params>
<method-param>EJB.TimeStamp.EJB.UserPK</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserPwd</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserPwd</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Home</method-intf>
<method-name>remove</method-name>
<method-params>
<method-param>java.lang.Object</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserUpdateTimestamp</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserUpdateTimestamp</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserPwd</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserPwd</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Home</method-intf>
<method-name>getHomeHandle</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserAdmin</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserAdmin</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserUpdateTimestamp</method-name>
<method-params>
<method-param>java.sql.Timestamp</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserName</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserName</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserUpdateTimestamp</method-name>
<method-params>
<method-param>java.sql.Timestamp</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserAdmin</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserAdmin</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>getUserName</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>getUserName</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Home</method-intf>
<method-name>getEJBMetaData</method-name>
<method-params />

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Remote</method-intf>
<method-name>setUserIp</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
<container-transaction>

<ejb-name>UserBMBean</ejb-name>
<method-intf>Local</method-intf>
<method-name>setUserIp</method-name>
<method-params>
<method-param>java.lang.String</method-param>
</method-params>

<trans-attribute>Never</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>


--------------------------------------------------------------------------------------

I am using entity beans and my client would always be a servlet. So, I can't use Session bean instead of servlet.

May be, I will have to insert Session bean as a intermediate layer between servlet and entity bean. But in that case also, I will have deal with session bean as remote object and I want to avoid that.

Please suggest.

Thanks,

Suraj

[surajmundada]

Hi,

I just came across a web-page which supports John's view that servlet can't access a EJB locally. It has to be a remote call. What we can do is wrap all the entity/session beans with a single session bean.

This session bean can be called remotely by servlet and then session bean calls other required beans locally.

see Figure5: Wrap entity bean with session bean to reduce network calls on http://www.precisejava.com/javaperf/j2ee/EJB.htm

If you guys have any other solution than this, please post it.

Regards,

Suraj

Thanks .....

[darranl]

I just came across a web-page which supports John's view that servlet can't access a EJB locally. It has to be a remote call. What we can do is wrap all the entity/session beans with a single session bean.

Within JBoss it is possible to use the local interface from the servlet.

However as there are no performance gains and it will prevent you migrating to other architectures / application servers it is a good idea to wrap your entities behind session beans that are accessed remotely.