The Messaging Endpoints EIPs are related to endpoints in a Camel route. Camel supports them implicitly by using the different features provided by the endpoints.
The Messaging Mapper EIP is actually the same thing as the Message Translator EIP, just located at the endpoint level.
In Camel, it just means that you use a bean or a processor in the same way that you do to implement the Message Translator EIP.
The Event Driven Consumer EIP describes an endpoint that listens for incoming messages. The endpoint reacts when it gets a message.
Camel supports this EIP by providing the components' bootstrapping endpoints that can work this way. It's the case for the CXF or JMS components, for instance.
This EIP is supported implicitly by Camel (you don't have to use any special notation).