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https://issues.apache.org/jira/browse/UIMA-1245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12677506#action_12677506
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Eddie Epstein commented on UIMA-1245:
-------------------------------------

+1 for Jerry's last proposal also.

As for the parameter name, the behavior is to "complete processing of children 
CASes before any further processing of their parent CAS". A CAS sent to a 
CasMultiplier may not have any children, so a wording referring to ParentCas is 
better than to InputCas. With that in mind, processParentLast is good, and 
processParentAfterChildren is even longer :)

> Processing order of parent CAS different on UIMA and UIMA AS
> ------------------------------------------------------------
>
>                 Key: UIMA-1245
>                 URL: https://issues.apache.org/jira/browse/UIMA-1245
>             Project: UIMA
>          Issue Type: Bug
>          Components: Async Scaleout
>            Reporter: Eddie Epstein
>
> Arron Kaplan raised the question of when parent CASes are processed relative 
> to their children. See http://markmail.org/message/5cop7iv2nshouhgs  As of 
> now, the processing order for a multi-threaded UIMA AS aggregate is different 
> than that for a single-threaded UIMA aggregate.
> A discussion with Burn, Adam, Jerry, Marshall and myself concluded that the 
> default processing order for UIMA AS should be changed to be the same as in 
> UIMA, in order to have the same application behavior for both. This will be 
> done by suspending flow of a parent CAS after it is returned from a 
> CasMultiplier delegate until all its children CASes have finished processing.
> However, there also needs to be a UIMA AS deployment option for CasMultiplier 
> delegates that allows the parent CAS to resume processing immediately after 
> being returned from the CM. This option is needed to enable parallel 
> processing.

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