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So you can bind parameters of the method to the Exchange, the Message or individual headers, properties, the body or other expressions.

Non registry beans

As of Camel 1.5 the The Bean Language also supports invoking beans that isn't registered in the Registry. This is usable for quickly to invoke a bean from Java DSL where you don't need to register the bean in the Registry such as the Spring ApplicationContext.

Camel can instantiate the bean and invoke the method if given a class or invoke an already existing instance. This is illustrated from the example below:
NOTE This bean DSL is supported since Camel 2.0-M2

        from("activemq:topic:OrdersTopic").
                filter().expression(BeanLanguage(MyBean.class, "isGoldCustomer")).
                to("activemq:BigSpendersQueue");

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