Flavia Rainone [
http://community.jboss.org/people/flavia.rainone%40jboss.com] created the
discussion
"Re: The reuse&&JBoss AOP"
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http://community.jboss.org/message/583686#583686
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loupi loupi wrote:
*Question N=°1 how JBoss AOP defines an abstract aspect? and how it makes the
reuse?(example in AspectJ we find Abstarct aspect)*
JBoss AOP does not define an
abstract aspect, you can however write an abstract class that will be the superclass of
your aspect, or define a common interface to more than one aspects in your system. The
reason for this is that JBoss AOP, differently from AspectJ, is not an AOP language, it is
an AOP tool. It will weave code that has been previously compiled with javac.
loupi loupi wrote:
*Question N=°2 how can we access to variable with the mixin mechanism?because I followed
your example*
See the previous paragraph. As JBoss AOP is a Java tool, your code
needs to compile first, using a plain Java compiler.
Still, what you want to do can be achieved. There is a very good example in our dist, in
the examples dir. The
http://http://docs.jboss.org/jbossaop/docs/2.0.0.GA/docs/aspect-framework...
introductions example contains the POJO2ExternalizableMixin, that acquires access to the
class it is applied to, POJO2, in its constructor. You would have to do the same, i.e.,
FooMixin will receive Foo in its constructor, initialize a private field with foo, and use
that to get access to fooMethod2 value:
public clas FooMixin implements FooInt {
private Foo target;
public FooMixin (Foo foo) {
target = foo;
}
public String fooMethod2 (int i) {
return Integer.toString (target.fooField - i);
}
}
Check out introductions example code to see the details (it is in the
docs/aspect-framework/examples/introductions path of your JBoss AOP installation dir).
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