EasyBeans is an open source implementation by ObjectWeb of the EJB3 container specification.
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An interceptor can be defined in the bean class or in another class.
In this example, it will be defined in the bean's class. A business
interceptor is defined by using the @AroundInvoke
annotation.
The following interceptor will print the name of the method that is invoked. Of course, this could be extended to perform more functions.
/** * Dummy interceptor. * @param invocationContext contains attributes of invocation * @return method's invocation result * @throws Exception if invocation fails */ @AroundInvoke public Object intercept(final InvocationContext invocationContext) throws Exception { System.out.println("Intercepting method '" + invocationContext.getMethod().getName() + "'."); try { return invocationContext.proceed(); } finally { System.out.println("End of intercepting."); } }
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Be sure to call the |