In CDI we have the Vetoed annotation[1] that vetoes the class, but we can't use expression to represent exclude this class. This feature would useful to many things, for example, an internationalization of payment[2] or just have a class that should not run when is in production. In Delta Spike[3], already there are this improvement. [1]http://docs.jboss.org/cdi/api/1.2/javax/enterprise/inject/Vetoed.html [2] public interface Payment { void pay(); } @Vetoed(onExpression = "instance eq brazil", interpretedBy = PaymentInterpreter.class) class BrazilianPayment implements Payment { ... } @Vetoed(onExpression = "instance eq mexico", interpretedBy = PaymentInterpreter.class) class MexicanPayment implements Payment { ... } [3]https://deltaspike.apache.org/documentation/core.html#__exclude -- Otávio Gonçalves de Santana twitter: http://twitter.com/otaviojava site: _http://about.me/otaviojava_ 55 (11) 98255-3513 _______________________________________________ cdi-dev mailing list cdi-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/cdi-dev Note that for all code provided on this list, the provider licenses the code under the Apache License, Version 2 (http://www.apache.org/licenses/LICENSE-2.0.html). For all other ideas provided on this list, the provider waives all patent and other intellectual property rights inherent in such information.