Oracle ADF Real World Developer's Guide

Adding an exception handler

An exception handler is the central place for handling unexpected exceptions in an application. For example, a method activity defined in a task flow may throw some business or runtime exceptions when specific conditions are not met at runtime. ADF allows you to handle such erroneous scenarios in a more user friendly way by designating one activity in a bounded or unbounded task flow as an exception handler.

To mark an activity as an exception handler, right-click on the desired activity in the task flow and select Mark Activity | Exception Handler.

An exception handler can be specified for a bounded or unbounded task flow. At runtime, when an error is thrown from some activity inside a bounded task flow, the framework ...