The Java EE 7 Tutorial
14.2 Invoking a Managed Bean
To enable a composite component to handle server-side data, you can invoke a managed bean in one of the following ways.
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Pass the reference of the managed bean to the composite component.
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Directly use the properties of the managed bean.
The example application described in The compositecomponentexample Example Application shows how to use a managed bean with a composite component by passing the reference of the managed bean to the component.