com.yammer.metrics.annotation

Annotation Type ExceptionMetered

@Retention(value=RUNTIME)
@Target(value=METHOD)
public @interface ExceptionMetered

An annotation for marking a method of an annotated object as metered.

Given a method like this:

     \@ExceptionMetered(name = "fancyName", cause=IllegalArgumentException.class)
     public String fancyName(String name) {
         return "Sir Captain " + name;
     }
 

A meter for the defining class with the name fancyName will be created and each time the #fancyName(String) throws an exception of type cause (or a subclass), the meter will be marked.

A name for the metric can be specified as an annotation parameter, otherwise, the metric will be named based on the method name.

For instance, given a declaration of

     \@ExceptionMetered
     public String fancyName(String name) {
         return "Sir Captain " + name;
     }
 

A meter named fancyName.exceptions will be created and marked every time an exception is thrown.

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
boolean	absolute If true, use the given name an as absolute name.
Class<? extends Throwable>	cause The type of exceptions that the meter will catch and count.
String	name The name of the meter.

Element Detail

name

public abstract String name

The name of the meter. If not specified, the meter will be given a name based on the method it decorates and the suffix "Exceptions".

Default:

""

absolute

public abstract boolean absolute

If true, use the given name an as absolute name. If false, use the given name relative to the annotated class.

Default:

false

cause

public abstract Class<? extends Throwable> cause

The type of exceptions that the meter will catch and count.

Default:

java.lang.Exception.class