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From "Marshall Schor (JIRA)" <...@uima.apache.org>
Subject [jira] [Resolved] (UIMA-4392) subiterator edge case needs correction - begin value with multiple instances
Date Fri, 15 May 2015 14:25:00 GMT

     [ https://issues.apache.org/jira/browse/UIMA-4392?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Marshall Schor resolved UIMA-4392.
    Resolution: Fixed

> subiterator edge case needs correction - begin value with multiple instances
> ----------------------------------------------------------------------------
>                 Key: UIMA-4392
>                 URL: https://issues.apache.org/jira/browse/UIMA-4392
>             Project: UIMA
>          Issue Type: Bug
>            Reporter: Marshall Schor
>            Assignee: Marshall Schor
>            Priority: Minor
>             Fix For: 2.7.1SDK
> The definition of a subiterator requires that the FSs returned by strictly greater than
the bounding FS (greater-than is with respect to the sort order for Annotations).  The current
implementation makes two mistakes - it uses the "equal" method on the FeatureStructure - which
returns true only for the indentical FS (same heap address in same heap), and doesn't allow
for multiple occurances of annotation-index-ordering-equals items.  For example, if there
were multiple "Tokens" each of which had different non-indexed field "lemma" which were set
to different values, and one of these FSs was used as the bounds, then the iterator incorrectly
currently skips over that one but only if it happens to be the first one in the sort order,
and never skips the others which would also compare equal (using the annotator comparator).
The correct behavior is to skip over all until an item is found which would compare as not-equal-using-standard-annotator

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