I'm writing a simple auditing framework which allows me to audit the fields of a class which are annotated with an @Audit annotation.
Example of possible annotations
class User {
@Audit
private String phoneNumber;
private String name;
@Audit
public getName(){
return name;
};
public setName(String name){
this.name=name;
}
}
So far I was only able to define a simple pointcut that watches calls to setters annotated with the @Audit annotation:
@Pointcut("call(* @Audit set*(*))")
How does a pointcut look that watches the assignment of fields that are annotated like in the above example?
Unfortunately, it is not possible with SpringAOP at the moment,
Spring AOP currently supports only method execution join points
(advising the execution of methods on Spring beans). Field
interception is not implemented, although support for field
interception could be added without breaking the core Spring AOP APIs.
If you need to advise field access and update join points, consider a
language such as AspectJ.
If You were to use AspectJ, you can use set(FieldPattern) pointcut. There are some examples in The AspectJTM 5 Development Kit Developer's Notebook
set(@Audit * *) seems to work, as for set(* @Audit * . *) - I'm not sure, perhaps AspectJ recognizes first wildcard as field modifiers but according to docs first element is annotation, second is modifier...
