Details
-
Bug
-
Status: Resolved
-
Major
-
Resolution: Fixed
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2.0.0uimaFIT
-
None
Description
selectPreceding() does not return the preceding element for the last element in the CAS if one is looking for a different annotation type than the anchor.
See the test below.
If the anchor is a token and I want the preceding tokens, everything is fine, but when I use a token anchor to get the preceding lemmas, no lemma is returned for the last token in the CAS.
Offset are exactly the same so the behaviour is unexpected.
@Test
public void test()
throws Exception
{
String testDocument = "This is a test document .\nIt is quite short .\n";
AnalysisEngine engine = AnalysisEngineFactory.createEngine(NoOpAnnotator.class);
JCas jcas = engine.newJCas();
TokenBuilder<Token, Sentence> tb = TokenBuilder.create(Token.class, Sentence.class);
tb.buildTokens(jcas, testDocument);
engine.process(jcas);
for (Token token : JCasUtil.select(jcas, Token.class)) {
Lemma lemma = new Lemma(jcas, token.getBegin(), token.getEnd());
lemma.addToIndexes();
}
for (Token token : JCasUtil.select(jcas, Token.class)) {
// try {
// List<Token> previous = JCasUtil.selectPreceding(Token.class, token, 1);
// System.out.println(previous.get(0).getCoveredText());
// }
// catch (IndexOutOfBoundsException e) {
// System.out.println(token);
// }
try {
List<Lemma> previous = JCasUtil.selectPreceding(Lemma.class, token, 1);
System.out.println(previous.get(0).getCoveredText());
}
catch (IndexOutOfBoundsException e) {
System.out.println(token);
}
}
}