The following steps describe how to define an invoker for a presentation
node to call a Single Action EJB.
- Create an invoker for calling the Single Action EJB. See Creating an invoker for detailed steps.
- Double-click the line that links the presentation node to the Single
Action EJB node. The Properties dialog of link box pops up. Since you have
already defined the presentation node and the business process node, some
fields are already filled with certain values.

- From the Invoker ID field, select an existing invoker ID or type
in a new invoker ID.
- Click OK to close the dialog box and make your settings
effective.
- The properties file and Java™ file of invoker will be generated.
Note: - When you change the invoker files outside the Graphical Builder, you must
keep the resource consistency.
- If you want to restore a invoker, you must backup the invoker property
file and the invoker class files.