Hugo Mougard created UIMA-3913:
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Summary: (J)CasUtil methods could be more generic
Key: UIMA-3913
URL: https://issues.apache.org/jira/browse/UIMA-3913
Project: UIMA
Issue Type: Improvement
Components: uimaFIT
Reporter: Hugo Mougard
Priority: Minor
As an example, the method {{indexCovering}} of {{JCasUtil}} has signature:
{code}
public static <T extends Annotation,S extends Annotation> Map<T,Collection<S>>
indexCovering(
JCas jCas,
Class<T> type,
Class<S> coveringType)
{code}
With this signature, the following code is invalid ({{RevisedSentence}} is a
subclass of {{Sentence}}):
{code}
Map<RevisedWords, Collection<Sentence>> indexRevised
= JCasUtil.indexCovering(
revised,
RevisedWords.class,
RevisedSentence.class);
{code}
This somewhat prevents users of {{JCasUtil}} from benefiting of all the OOP
pluses of the UIMA TS.
Here would be a signature that would maybe better fit the problem:
{code}
public static <U extends Annotation, V extends U, S extends Annotation, T
extends S> Map<S,Collection<U>> indexCovering(
JCas jCas,
Class<T> type,
Class<V> coveringType)
{code}
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