Install or remove an {@link ExecutorChannelInterceptor} that invokes a
completion task once the message is handled.
@param channel the channel to configure
@param preservePublishOrder whether preserve order is on or off based on
which an interceptor is either added or removed.
Install or remove an {@link ExecutorChannelInterceptor} that invokes a completion task once the message is handled. @param channel the channel to configure @param preservePublishOrder whether preserve order is on or off based on which an interceptor is either added or removed.