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https://issues.apache.org/jira/browse/UIMA-6153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16987678#comment-16987678
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Richard Eckart de Castilho commented on UIMA-6153:
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For the time being, I have resorted to using this form:
Annotation c = cas.select(myTypeForTokenClass).<Annotation>at(2, 3).get(0);
Note that I am using *Annotation* here instead of *Token* and *CAS* instead of
*JCas* since I don't want to pay the overhead of JCas being initialized.
In an ad-hoc non-scientific situation I was trying out CAS vs JCas and found
that using JCas made the test run ~500ms longer which I would attribute to the
initialization overhead - but note that I didn't yet get around to
systematically investigate this. I'll post when I had more time to figure the
performance difference out.
> select.covering should bind to AnnotationFS
> -------------------------------------------
>
> Key: UIMA-6153
> URL: https://issues.apache.org/jira/browse/UIMA-6153
> Project: UIMA
> Issue Type: Improvement
> Components: UIMA
> Affects Versions: 3.1.1SDK
> Reporter: Richard Eckart de Castilho
> Priority: Major
>
> The following code does not compile because select.covering() uses TOP
> instead of AnnotationFS as the generic type. Consequently, getBegin() and
> getEnd() are not available on the "s" used in the filter expressions. But
> since covering() only makes sense for annotations, binding the generic type
> to TOP doesn't seem to make much sense:
> {{return aCas.select(getType(aCas, Sentence.class)).covering(aBegin1,
> aBegin1)}}
> {{ .filter(s -> s.getBegin() <= aBegin1 && aBegin1 < s.getEnd())}}
> {{ .filter(s -> s.getBegin() <= aBegin2 && aBegin2 <
> s.getEnd()).findFirst()}}
> {{ .isPresent();}}
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