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Fix tautology in service-activator.adoc

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JIRA: https://jira.spring.io/browse/INT-2416

See https://github.com/spring-projects/spring-integration/pull/2611
This commit is contained in:
Artem Bilan
2018-10-25 15:09:03 -04:00
committed by GitHub
parent 0c14aa052b
commit 8b54277a34
1 changed files with 1 additions and 1 deletions
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src/reference/asciidoc/service-activator.adoc
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@@ -175,4 +175,4 @@ However keep in mind that, unlike <<transformer, transformers>>, for a Service A
So, if your method parameter is a `Message<?>` and you copy some, but not all, existing headers in your service method, they will reappear in the reply message.
It is not a Service Activator responsibility to remove headers from a reply message and, pursuing the loosely-coupled principle, it is better to add a `HeaderFilter` in the integration flow.
Alternatively, a Transformer can be used instead of a Service Activator but, in that case, when returning a full `Message<?>` the method is completely responsible for the message, including copying request message headers (if needed).
It is important to ensure that important framework headers (e.g. `replyChannel`, `errorChannel`), if present, must be preserved.
You must ensure that important framework headers (e.g. `replyChannel`, `errorChannel`), if present, have to be preserved.