spring-projects/spring-integration — pull request #930 by garyrussell (2013-10-23 19:24:01+00:00)
Title: INT-2629 Extract Gateway Argument Mapping Strategy

https://jira.springsource.org/browse/INT-2629

Strategy for mapping gateway methods to map method arguments
to a message.

Default strategy works as today, but pluggable using attribute
'mapper' on .

A custom mapper should implement InboundMessageMapper

where the MethodArgsHolder contains the Method object and the argument
values.

When using a custom mapper, the mapper is entirely responsible for
creating the Message - therefore 'payload-expression' attributes
and

elements are not allowed.