Initializing the ORB

To initialize the ORB and retrieve a reference to the CosTransactions::Current interface, specify the TransactionCurrent ObjectId, which identifies the CosTransactions::Current interface, to the resolve_initial_references method, and narrow it (using the _narrow method) to the CosTransactions::Current interface. Use the is_nil method to verify that the reference to the CosTransactions::Current interface is valid.

For clients

The following code fragment shows how to initialize the ORB from a client. ORB_init must take the argumentList array that specifies the ORBNameServiceURL parameter. You can also set the ORBNameServiceURL using the JAG_NAMESERVICEURL environment variable.

int  argumentCnt = 1;
char *argumentList[] = {
   { "-ORBNameServiceURL iiop://<hostnamehere>:2000" },
   { "" }
   };
try {

  CORBA::ORB_var  orb = CORBA::ORB_init(argumentCnt,     argumentList, 0);
  cerr << "Orb init" << endl;

  CORBA::Object_var  crntObj =
    orb->resolve_initial_references
      ("TransactionCurrent");
  CosTransactions::Current_var CurrentIntf =
    CosTransactions::Current::_narrow(crntObj);
  if( CORBA::is_nil(CurrentIntf) )
  {
    cerr << "Error getting Current" << endl;
    exit(-1);
  }
cerr << "Got Current" << endl;

For components

The following code fragment shows how to initialize the ORB from a component. ORB_init does not need to take any parameters.

orb = CORBA::ORB_init(argumentCnt, NULL, 0);
cerr << "Orb init" << endl;

CORBA::Object_var  crntObj =
  orb->resolve_initial_references
    ("TransactionCurrent");
CurrentIntf =   CosTransactions::Current::_narrow(crntObj);
if( CORBA::is_nil(CurrentIntf) )
{
  cerr << "Error getting Current" << endl;
  /* could be due to:
  **   1. Component not BeanManaged/OTS Style
  **   2. Already in a Txn
  ** 3. not running under OTS
  */
  return CS_FAIL;
}
cerr << "Got Current" << endl;