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From "Jerry Cwiklik (JIRA)" <uima-...@incubator.apache.org>
Subject [jira] Closed: (UIMA-1391) Client of a CAS Multiplier should be able to stop processing of a CAS
Date Tue, 04 Aug 2009 15:26:14 GMT

     [ https://issues.apache.org/jira/browse/UIMA-1391?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jerry Cwiklik closed UIMA-1391.

    Resolution: Fixed
      Assignee: Jerry Cwiklik

> Client of a CAS Multiplier should be able to stop processing of a CAS
> ---------------------------------------------------------------------
>                 Key: UIMA-1391
>                 URL: https://issues.apache.org/jira/browse/UIMA-1391
>             Project: UIMA
>          Issue Type: Improvement
>          Components: Async Scaleout
>            Reporter: Burn Lewis
>            Assignee: Jerry Cwiklik
>             Fix For: 2.3S
> Normally the number of CASes generated by a Cas Multiplier is determined by the CM itself,
but with an aggregate CM that number may be hard to anticipate or control.  Some applications
may not need all of the generated CASes ... they may be satisfied once an appropriate amount
of information has been returned.
> Hence it would be convenient for the client to be able to request that the CM stop generating
CASes, and if an aggregate, stop processing any internal CASes generated from the input CAS.
 Such a request is probably only useful for CMs acting as pure segmenters ... if the CM is
merging CASes or resegmenting them then the process could be terminated by the application
upon receiving an end-of-stream CAS.  It might be an acceptable simplification to have the
stop request stop all processing of active CASes, but then again it may be easily handled
by the changes being made to stop an aggregate CM when a generated CAS produces an exception.

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