Transaction Contract
The Info*Engine Java EE connector contains LocalTransaction support only. Transactions are only supported if the connector is deployed against Windchill. When using the Info*Engine Java EE connector from a Java EE SOAP client, it is possible to have the application server manage transactions for you. When deployed, each EJB method can declare its transaction requirements. When using Windchill and a transacted delegate is invoked from an EJB, the @FORM context group contains information that the task must use to be enclosed within the transaction. The @FORM attributes are:
• session_instance — The Windchill instance the transaction is started against. This must be used as the value of the INSTANCE parameter to Windchill adapter webjects that are part of a transaction.
• session_id — The session identifier. This must be used as the value of the SESSION_ID parameter to Windchill adapter webjects that are part of a transaction.
Transactions can be demarcated manually if you are executing either from a standalone Java SOAP client or from an EJB that wants to control a transaction itself. For example:
Connection cx = cxFactory.getConnection ();
LocalTransaction tx = cx.getLocalTransaction ();
...
tx.begin ();
...
tx.commit ();