## Instanceof

You can use $instanceof{} expressions when specify the class of a method, constructor, or field. This is very useful when you want to specify bindings that are driven off of base classes or interfaces.

    <aop>
       <bind pointcut="execution(void $instanceof{SomeInterface}->someMethod())">
           <interceptor class="SimpleInterceptor"/>
       </bind>
    </aop>

#### Running

To compile and run:

      $ ant

It will javac the files and then run the AOPC precompiler to manipulate the bytecode, then finally run the example. The output should read as follows:

    run:
         [java] --- pojo.someMethod(); ---
         [java] <<< Entering SimpleInterceptor type: org.jboss.aop.joinpoint.MethodInvocation
         [java] someMethod
         [java] >>> Leaving SimpleInterceptor