SOA - Receive Message From EJB

 We can use EJB service to receive message from locally deployed EJB applications. We can use the following steps to create a SOA application to consume message from an EJB.

• Create a SOA application 
• Create an empty SOA project
• Select the SOA project created above , right click and select New option 
• Select Java class and provide class name and package name and select ok
• If you get a prompt to select the folder then select project_name/src folder
• Overwrite the generated class with below sample interface code. 

        package svn.com.callback;
        import java.util.List;
        import svn.com.model.XxComStatus;  // POJO class representing incoming message structure.
        public interface class_name
            {
              public String exec(XxComStatus status);
            }

• Go to SOA composite add select EJB service
• Provide Service Name - ConsumeEJBMessage
• Provide a meaningful JNDI Name - ConumeCallbackMessageEJB
• Provide Java Interface Name as - svn.com.callback.class_name  // Taken from above Java code. 
• Open the composite SOURCE tab and add the missing values. 

  <service name="ConsumeEJBMessage">

    <interface.java interface="svn.com.callback.class_name"/>

    <binding.ejb uri="ConumeCallbackMessageEJB" ejb-version="EJB3" javaInterface="svn.com.callback.class_name"/>

  </service>

• Create a BPEL process without service definition
• Now wire EJB service and BPEL. This will generate the service WSDL
• Now you can update the SOA composite as per the business requirement. 

Sample Composite:

Reference : https://technology.amis.nl/it/publish-soa-composite-application-as-ejb-to-be-invoked-from-java-applications-using-ejb-binding/