artembilan/spring-integration — comment on commit dd9af9055ce05acf4836d95ca45507a4103ab531
File: spring-integration-core/src/main/resources/org/springframework/integration/config/xml/spring-integration-2.1.xsd line 1610
By olegz:

I'd say "...or some valid SpEL expression which returns cannel name or channel reference"