Fast vector highlighter: Allow access to start/end offsets
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Key: LUCENE-3007
URL: https://issues.apache.org/jira/browse/LUCENE-3007
Project: Lucene - Java
Issue Type: Improvement
Components: contrib/highlighter
Reporter: Tran Nam Quang
Priority: Minor
Hello everyone,
Apparently, the fast vector highlighter assumes all of its clients want to
highlight HTML. However, there are some people (like me) who would like to
implement highlighting on a text-only document view, so nothing but the
highlighting start/end offsets are needed.
This works quite well with Lucene's standard highlighter. Unfortunately, there
seems to be no officially supported way to access the start/end offsets that
are computed by the fast vector highlighter. More precisely, all the needed
information is stored in the linked list
org.apache.lucene.search.vectorhighlight.FieldPhraseList.phraseList, but
there's no way to access it, except using reflection or modifying the
highlighter source code.
So my proposal is to provide some methods for accessing this particular field,
or any other means to get the highlighting start/end offsets of the fast vector
highlighter. Thanks in advance!
Best regards
Tran Nam Quang
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