The Connector Architecture supports importing transactions from an EIS to a Java EE server. The architecture specifies how to propagate the transaction context from the EIS. For example, a transaction can be started by the EIS, such as the Customer Information Control System (CICS). Within the same CICS transaction, a connection can be made through a resource adapter to an enterprise bean on the application server. The enterprise bean does its work under the CICS transaction context and commits within that transaction context.
The Connector Architecture also specifies how the container participates in transaction completion and how it handles crash recovery to ensure that data integrity is not lost.