EJB Adapter

How the EJB Adapter Works

Implementing Communications with a Remote Application Server

Configuring the EJB Adapter Listener Service

To configure the EJB Adapter Listener service, you must specify field settings in Sterling B2B Integrator. There are no fields that must be defined in the Graphical Process Modeler (GPM).

Sterling B2B Integrator Configuration

The following table describes the fields used to configure the EJB Adapter Listener service in Sterling B2B Integrator:

Deploying Sterling B2B Integrator Adapter EJB on a WebSphere Application Server

Deploying Sterling B2B Integrator Adapter EJB on a WebLogic Application Server

See EJB Client Program Example for a sample Context Holder Object and a list of methods you can use in a client program and the properties they correspond to in Sterling B2B Integrator.

InitialContext env = (InitialContext) ctx.lookup("java:comp/env"); 
ctx.rebind("host","hostname"); 
ctx.rebind("port","listenerPort");

Deploying Sterling B2B Integrator Adapter EJB on a JBoss Application Server

See EJB Client Program Example for a sample Context Holder Object and a list of methods you can use in a client program and the properties they correspond to in Sterling B2B Integrator.

InitialContext env = (InitialContext) ctx.lookup("java:comp/env"); 
ctx.rebind("host","hostname"); 
ctx.rebind("port","listenerPort");

EJB Client Program Example

The following lists Sterling B2B Integrator-specific methods you can use in the client program:

ContextHolder rch = ejb.submitContext(ch,"login","password");

int wf_status = ejb.getState(rch,"admin","password");

ContextHolder con = ejb.retrieveContext(rch,"login","password");

The following is an example of a program you could create on your application server that would work with Sterling B2B Integrator.

{\rtf1\ansi\ansicpg1252\deff0\deflang1033{\fonttbl{\f0\fswiss\fcharset0 Arial;}} 
\viewkind4\uc1\pard\f0\fs20\par 
import javax.ejb.*;\par 
import javax.naming.*;\par 
import java.rmi.*;\par 
import java.util.*;\par 
import java.io.*;\par 
\par 
public class TestEJBAdapter \{\par 
\par 
public static void main(String arg[]) \{\par 
\par 
if(arg[0] == null || arg[1] == null || arg[2] ==null || arg[3] == null)\par 
\{\par
       System.out.println("Missing arguemnts : testwl BPName , JNDI , GIS Host , 
       GIS Port");\par
       System.exit(0);\par 
\}\par 
\par 
\par 
try\{\par 
\par 
FileInputStream jndicfg = new FileInputStream(arg[1]);\par 
\par 
Properties p = new Properties();\par 
p.load(jndicfg);\par 
\par 
// Obtain the Initial Context from Application Server\par 
InitialContext ctx = new InitialContext(p);\par 
\par 
// doing lookup for GIS EJB adapter\par 
Object obj = ctx.lookup("com.sterlingcommerce.GISInvoker");\par 
\par 
// Create  EJB home\par 
\par 
GISInvokerHome home = (GISInvokerHome)javax.rmi.PortableRemoteObject.narrow(obj, 
    Class.forName("com.sterlingcommerce.woodstock.services.ejb.client.GISInvokerHome"));\par 
\par 
GISInvoker ejb = home.create();\par 
\par
// Creating Context Holder object to launch Work flow in EJB\par 
\par
         ContextHolder ch = new ContextHolder();\par
         ch.setName(arg[0]);\par
         ch.setMaxBPWaitTime(30000);\par
         ch.setWorkFlowDataOnError(true);\par
         ch.setBody("My body".getBytes("UTF-8"));\par
         ch.setBPName(arg[0]);\par
          System.out.println(ch.toString());\par 
\par 
// Executing Business Process\par
 ContextHolder rch = ejb.submitContext(ch,"admin","password");\par
  System.out.println("Executed BP "+rch);\par 
\par 
// Obtaining the Businss Process status  \par
  \par
  ejb.getState(rch,"admin","password");\par
  \par
 // Obtain the Context \par 
ContextHolder con=  ejb.retrieveContext(rch,"admin","password");\par 
\par 
\}catch(Exception e) \{\par
    e.printStackTrace();\par
  \}\par 
\par 
\}\par 
\par 
\par 
}