Overview
This appendix presents some scenarios for typical applications that use Adapter for Enterprise Javabeans. Depending on the complexity of your business function, you could implement one scenario or combine elements of several scenarios to create the necessary functionality.
The scenarios are intended to help you use Adapter for Enterprise Javabeans to create EJB client services and join them together in logical workflows to implement some desired business function.
While considering the scenarios, keep the following points in mind:
Adapter for Enterprise Javabeans supports session and entity beans only. There are no scenarios for message-driven EJBs.
Note:
Entity beans are not supported by the EJB 3.0 standard. They are supported only by EJB 2.1 or earlier standards.
The scenarios illustrate basic event flow with successful results only. No error or exception handling is illustrated.
The scenarios assume that you are an authorized
webMethods user and are familiar with
Software AG Designer and in particular, the Flow Service Editor. For information about creating flow services, see the
webMethods Service Development Help for your release.
For additional information to help you create flow services for use with
Adapter for Enterprise Javabeans, see
Creating Flows for
Adapter for Enterprise Javabeans Services.
Note:
The CreateEJB 2.1, InvokeEJB 2.1, and CreateInvokeEJB 2.1 adapter services are used to access the 2.1 or earlier versions of EJBs. The FetchEJB 3.0, InvokeEJB 3.0, and FetchInvokeEJB 3.0 adapter services are used to access the 3.0 EJBs. The 2.1 adapter services cannot be used with the 3.0 adapter services and vice versa.