Can we log inside a method using AOP?

Question

I want to log some statements in my method using AOP.

I am able to define the pointcuts, advice for method starting, ending, exception scenarios.

Can we log in between the method at some point (after method entry and before execution finishes?) I am using Spring 3.0.

possible duplicate of [Spring: Standard Logging aspect (interceptor)](http://stackoverflow.com/questions/7302090/spring-standard-logging-aspect-interceptor) — Tomasz Nurkiewicz, Oct 28 '11 at 07:28
@Tomasz Nurkiewicz: this is not a duplicate of this question, because the problem is how place some logstatement in the middle of the method. This theme is not discussed in the other question. — Ralph, Oct 28 '11 at 09:32
@java_enthu: My apologies, I misunderstood your question. Unfortunately I can't revert my close vote, but you have my +1 and an answer :-). — Tomasz Nurkiewicz, Oct 28 '11 at 09:52

score 2 · Accepted Answer · answered Oct 28 '11 at 09:50

2

No, it is not possible. Spring is not capable of "looking into" your methods and modifying them. Technically AspectJ weaving can do this, but I would stay away from such approaches.

What you can do is to extract methods, which will not only allow you to provide some finer-grained logging, but you will also improve the overall code quality. However note that by default Spring can only intercept public (proxies) and protected methods (CGLIB).

answered Oct 28 '11 at 09:50

Tomasz Nurkiewicz

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Oh with Spring 3.x versions also not capable ? – java_enthu Oct 28 '11 at 10:01
From what I know, not. Again, Spring itself is not touching your methods, only intercepting calls. With real AspectJ weaving you **can** intercept variables access and private methods. – Tomasz Nurkiewicz Oct 28 '11 at 10:10
Why the downvote? If my answer is not correct please provide a better one and I will modestly delete this one :-). – Tomasz Nurkiewicz Oct 28 '11 at 11:31
@Thomas : by anyway can we mix AspectJ weaving with Spring AOP? and btw: i didn't downvote!! – java_enthu Oct 28 '11 at 11:37
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Of course, you can use Aspectj LTW or CTW with Spring, for instance AspectJ can weave transaction support into your classes. You'll find plenty of resources over the Internet, I am planning to publish something about it today as well. – Tomasz Nurkiewicz Oct 28 '11 at 11:49
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[Here](http://nurkiewicz.blogspot.com/2011/10/spring-pitfalls-proxying.html) it is. – Tomasz Nurkiewicz Oct 31 '11 at 13:47

Can we log inside a method using AOP?

1 Answers1