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From "Richard Eckart de Castilho (JIRA)" <...@uima.apache.org>
Subject [jira] [Commented] (UIMA-5102) auto set missing AnnotationBase sofaRef feature
Date Fri, 09 Sep 2016 18:33:20 GMT

    [ https://issues.apache.org/jira/browse/UIMA-5102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15477907#comment-15477907
] 

Richard Eckart de Castilho commented on UIMA-5102:
--------------------------------------------------

In that case, I'd revert to my original suggestion: addressing this during ingestion of legacy
data within the ingestion code to avoid long-ranging architectural dependencies into the core.

> auto set missing AnnotationBase sofaRef feature
> -----------------------------------------------
>
>                 Key: UIMA-5102
>                 URL: https://issues.apache.org/jira/browse/UIMA-5102
>             Project: UIMA
>          Issue Type: Improvement
>          Components: Core Java Framework
>    Affects Versions: 2.9.0SDK
>            Reporter: Marshall Schor
>            Assignee: Marshall Schor
>            Priority: Minor
>             Fix For: 3.0.0SDKexp, 2.9.1SDK
>
>
> This Jira describes a possible approach to automatically recovering from an error condition,
which might be implemented.
> Sometimes, the sofa feature of a FS which is a subtype of AnnotationBase is missing (is
null) when the FS is being added to the indexes of some particular CAS View.  One way this
can happen is during (lenient) deserialization of XMI or XCAS CASes, after some update has
occurred to the type system, which changes a type from not being a subtype of AnnotationBase,
to having that as a supertype.
> In this case (where the sofa reference is null), instead of throwing an exception, set
the sofa reference to the likely proper value - the sofa that corresponds to the view it is
being indexed in.  If there is no sofa for that view (unlikely but possible), throw an exception.
> If this recovery is done, output a diminishing frequency log message about it.  



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