Greetings,
I need to craft a pointcut to identify code which does not adhere to a
specific design pattern. Here is the pattern:
1. Assume an interface is defined as follows:
public interface MyProcessor{
public void process();
}
2. Assume a marker annotation has been defined called "OkToIgnore".
3. Classes implementing the MyProcessor inteface must follow the these
rules:
A) The process() method must be defined on this class (and each
subclass) individually (cannot rely on superclass to provide
implementation).
B) Every public attribute (defined directly on the class in
question -- the one implementing the interface) as well as every private
attribute with a public or protected accessor method (again, defined
directly on the class implementing the interface) must satisfy one of
the following:
i) The attribute is marked with the "OkToIgnore" annotation.
ii) The attribute (if public) or the public getter must be
called/accessed within the scope of the "process()" method defined on
this class.
If one of (i) or (ii) is not satisfied, then I want to fail compilation
or log a message or some similar action to be implemented in the advice.
The action is not that important at this point - my challenge is with
defining the pointcut.
Note that the same rules must also apply to subclasses of any class
implementing the interface -- but these subclasses must define the
process() method themselves and must "process" their own attributes (the
ones defined directly on themselves) within that process method.
Is this even possible? If so, any help on how to define the best
pointcut for this scenario would be greatly appreciated! I am open to
any reasonable refactoring that might need to be done to enable this
sort of checking as well if that would help. I'd prefer not to have to
refactor or add extra code to the classes if at all possible though.
I look forward to your help with this challenge!!! Thanks in advance!
Peter
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