Operation (Tapestry API - 5.7.2)

```
@Target(METHOD)
@Retention(RUNTIME)
@Documented
@UseWith({SERVICE,COMPONENT,PAGE})
public @interface Operation
```
Describes a method as one that should be operation tracked. Operation tracking is useful when an exception in deeply nested code occurs, as it is possible to identify (using human readable descriptions) the path to the code that failed.

Since:

5.4

See Also:

OperationTracker

- Required Element Summary
  
  Required Elements
  Modifier and Type Required Element Description
  
  String value
  The message to pass to OperationTracker.invoke(String, org.apache.tapestry5.ioc.Invokable).

- Element Detail
  - value
```
String value
```
    The message to pass to OperationTracker.invoke(String, org.apache.tapestry5.ioc.Invokable). If the message contains the '%' character, it is interpreted to be a format string, passed the method's parameters.
    
    See Also:
    
    OperationAdvisor.createAdvice(String)