Error channel for executor channel - spring-integration

Question

I am using an executor channel since I want to switch threads to finish the transaction at this point. The only other way to do this is a poller and I think the executor channel is a much nicer solution. The only problem is that I cannot find a way to define an error channel for this dispatcher. Errors are always published on the global errorChannel.
Here is my config:
<task:executor id="routingExec" pool-size="10"/>
<int:channel id="baseFlow.route">
<int:dispatcher failover="false" task-executor="routingExec"/>
</int:channel>
And I want to have something like this (like in the poller):
<task:executor id="routingExec" pool-size="10"/>
<int:channel id="baseFlow.route">
<int:dispatcher error-channel="myErrorChannel" failover="false" task-executor="routingExec"/>
</int:channel>

Answer 1

Errors are handled in the ExecutorChannel via ErrorHandlingTaskExecutor:
if (!(this.executor instanceof ErrorHandlingTaskExecutor)) {
ErrorHandler errorHandler = new MessagePublishingErrorHandler(
new BeanFactoryChannelResolver(this.getBeanFactory()));
this.executor = new ErrorHandlingTaskExecutor(this.executor, errorHandler);
}
Where defaultErrorChannel is really like IntegrationContextUtils.ERROR_CHANNEL_BEAN_NAME.
So, to use your own channel for error from that ExecutorChannel, you should use errorChannel header for each message to send, or just inject your own ErrorHandlingTaskExecutor with MessagePublishingErrorHandler and defaultErrorChannel configured to your expectations.