Richard Eckart de Castilho created UIMA-6286:
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Summary: select following finds zero-width annotation at reference
end position
Key: UIMA-6286
URL: https://issues.apache.org/jira/browse/UIMA-6286
Project: UIMA
Issue Type: Bug
Components: Core Java Framework, uimaFIT
Reporter: Richard Eckart de Castilho
Assignee: Richard Eckart de Castilho
Fix For: 3.2.0uimaFIT, 3.2.0SDK, 2.5.0uimaFIT
The uimaFIT {{selectFollowing}} as well as the UIMA v3 {{SelectFS.following}}
show the following behavior:
* Given two annotations {{X: [0-1]}} and {{Y: [1-1]}}
* performing an operation {{select annotations FOLLOWING X}}, {{Y}} is returned.
So a zero-width annotation at the end of another annotation is treated to be
"following" that other annotation.
However, a zero-width annotation at the beginning of another annotation is NOT
treated to be "preceding" that other annotation.
* Given two annotations {{X: [1-2]}} and {{Y: [1-1]}}
* performing an operation {{select annotations PRECEDING Y}}, {{X}} is not
returned.
Looking at the uimaFIT implementation, the fact that the SelectFS was modelled
after the uimaFIT implementation and a general discussion on the mailing list
regarding the rationales for interval predicates (e.g. following and
preceding), I come to the conclusion that the uimaFIT selectFollowing was
simply not thought to the end when it was implemented. So this seems to be an
edge-case bug that needs to be fixed for a consistent behavior.
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