This class can be implemented by application developers, although this is not always necessary, as PayloadRootQNameEndpointMapping and SoapActionEndpointMapping are included.

HandlerMapping implementations can support mapped interceptors but do not have to. An endpoint will always be wrapped in a EndpointExecutionChain instance, optionally accompanied by some EndpointInterceptor instances. The MessageDispacher will first call each EndpointInterceptor's handlerRequest method in the given order, finally invoking the endpoint itself if all handlerRequest methods have returned true.