Do Catch — Catches exceptions as part of a try, catch, finally block
The Do Catch pattern specifies a series of steps to take when the specified exception is thrown.
The Do Catch pattern can only occur following a try pattern. It must be followed by either a processor or an endpoint.
Table 34 describes the properties you can specify using the properties editor.
Table 34. Do Catch Properties
| Name | Description |
|---|---|
| Description | Specifies a text description for the node. This description is included in the generated XML file, but it is informational only. It is not used by Apache Camel. |
| Exception | Specifies the list of exceptions caught. The button adds an entry typed in the field. The button removes the selected entry from the list. |
| Language | Specifies the expression language used to process the expression. |
| Id | Specifies a unique identifier for the endpoint. The tooling automatically generates an id for a node when it is created, but you can remove that id or replace it with your own. The Camel debugger requires all nodes with a breakpoint set to have a unique id. You can use the id to refer to endpoints in your Camel XML file. |
| On When | Specifies an additional condition that should be true before the On Catch is triggered. This is used for fine grained controlling of whether thrown exception should be intercepted by this exception type or not. |