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Re: [Springframework-developer] Creating CGLib objects in Spring (not Proxies)
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From: Ramnivas L. <ram...@in...> - 2007-10-14 01:58:39
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You should be able to implement this functionality using AspectJ
weaving. Please consult AspectJ documentation for more details.<br>
<br>
-Ramnivas<br>
<br>
Bryant Harris wrote:
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<div><font face="Arial" size="2">Hi,</font></div>
<div><font face="Arial" size="2"> I had an idea for using
annotations to mark various methods in our business tier as
corresponding to various business events (milestones)... ala something
like this.</font></div>
<div> </div>
<div><font face="Courier" size="2">public class MyClass {</font></div>
<div><font face="Courier" size="2"> public void someMethod() {</font></div>
<div><font face="Courier" size="2"> method1();</font></div>
<div><font face="Courier" size="2"> method2();</font></div>
<div><font face="Courier" size="2"> }</font></div>
<div> </div>
<div><font face="Courier" size="2">
@BusinessMilestone(description="...");</font></div>
<div><font face="Courier" size="2"> protected void method1() {</font></div>
<div><font face="Courier" size="2"> ..</font></div>
<div><font face="Courier" size="2"> }</font></div>
<div> </div>
<div><font face="Courier" size="2">
@BusinessMilestone(description="...");</font></div>
<div><font face="Courier" size="2"> protected void method2() {</font></div>
<div><font face="Courier" size="2"> ..</font></div>
<div><font face="Courier" size="2"> }</font></div>
<div><font face="Courier" size="2">}</font></div>
<div> </div>
<div><font face="Arial" size="2">The idea is to use the annotations
to specify the point cuts where I can inject some auditing advice to
record these milestones. I thought this would be a real quick way for
us to specify this sort of thing. My only problem is it won't work
with any sort of proxying mechanism. If you use a proxy, only an
external call to 'someMethod' would go through the proxy. The internal
calls to method1 and method2 (the ones that would need interception to
apply the advice) won't go through the proxy.</font></div>
<div> </div>
<div><font face="Arial" size="2">So what I need is not a CGlib proxy,
but an actual CGLib enhanced object where the point cuts are baked in
to my actual object so that I can apply the advice.</font></div>
<div><font face="Arial" size="2">Is there a way in Spring to
accomplish something like this?</font></div>
<div> </div>
<div><font face="Arial" size="2">Thanks,</font></div>
<div> </div>
<div><font face="Arial" size="2">Bryant</font></div>
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