loupi loupi [
http://community.jboss.org/people/hsma] created the discussion
"The reuse&&JBoss AOP"
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http://community.jboss.org/message/583176#583176
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*Hello,*
*First, i really need someone to answer me, because I have many questions, but in this
forum only a few people answer*
*Question N=°1 how JBoss AOP defines an abstract aspect? and how it makes the
reuse?(example in AspectJ we find Abstarct aspect)*
*Question N=°2 how can we access to variable with the mixin mechanism?because I followed
your example*
|| *MixIN example* ||
| package Fooo;
public class Foo {
public int fooField;
public Foo () {
fooField = 0;
}
public String fooMethod (int i) {
return Integer.toString (fooField + i);
}
} |
| package Fooo;
public interface FooMixinInt {
public String fooMethod2 (int i);
} |
| package Fooo;
public class FooMixin implements FooMixinInt {
public String fooMethod2 (int i) {
return Integer.toString (fooField - i);
}
} |
| package Fooo;
public class Main {
public static void main(String[] args) {
// TODO Auto-generated method stub
Foo foo = new Foo ();
FooMixinInt fooint = (FooMixinInt) foo;
String s = fooint.fooMethod2 (-2);
}
} |
<?xml version="1.0" encoding="UTF-8"
standalone="yes"?>
<aop>
<introduction class="Fooo.Foo">
<mixin>
<interfaces>Fooo.FooMixinInt</interfaces>
<class>Fooo.FooMixin</class>
<construction>new Fooo.FooMixin()</construction>
</mixin>
</introduction>
</aop>
*and I often find this error:*
Exception in thread "main" java.lang.Error: Unresolved compilation problem:
fooField cannot be resolved
at Fooo.FooMixin.fooMethod2(FooMixin.java:6)
at Fooo.Foo.Fooo$Foo$fooMethod2$aop(Foo.java)
at Fooo.Foo$FooAdvisor.fooMethod24106554489332185313(Foo$FooAdvisor.java)
at Fooo.Foo.fooMethod2(Foo.java)
at Fooo.Main.main(Main.java:12)
*Thank you :)*
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