SCA service EJB binding

[lili]

Hello,
   I encountered a problem when I use SCA service ejb-binding. The detail is as 
follows:
    In the composite file, I want to make a service bind as ejb,but I don't 
know how to write the attributes of the binding.ejb element,and another 
question is that when I have binded a service as ejb,how can I use it?
For example,I use weblogic as the ejb container,how can I deploy the binded ejb 
service into J2EE environment?
  Also a question,what I need to write to make the service in SCA can be binded 
to ejb?The beanInterface? The homeInterface? The implementation of the bean? Or 
what others need I write?
   The composite file is as follows:
 
<?xml version="1.0" encoding="UTF-8"?>
<sca:composite xmlns="http://www.osoa.org/xmlns/sca/1.0"; 
xmlns:sca="http://www.osoa.org/xmlns/sca/1.0";
               
xmlns:dbsdo="http://tuscany.apache.org/xmlns/sca/databinding/sdo/1.0"; 
               name="serviceejb" 
targetNameSpace="http://com.comtop/demo/general";>
  <sca:component name="GeneralServiceEJBComponent">
  <sca:implementation.java 
class="com.comtop.general.ejbbinding.GeneralServiceEJBImpl"/>
    <sca:service name="GeneralServiceEJB">
    <sca:interface.java interface="com.comtop.general.ejbbinding.GeneralEJB"/>
    </sca:service>
  </sca:component>
  <sca:service name="ServiceEJB" 
promote="GeneralServiceEJBComponent/GeneralServiceEJB">
  <sca:interface.java interface="com.comtop.general.ejbbinding.GeneralEJB"/>
    <sca:binding.ejb
     uri="corbaname:iiop:localhost:7001#GeneralEJB"
     homeInterface="com.comtop.general.ejbbinding.GeneralEJBHome"/>
  </sca:service>
</sca:composite>
 
 Hope your good news! Thanks a lot!!!