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From "Koji Sekiguchi (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENE-2603) FastVectorHighlighter: add a method to set an arbitrary char that is used when concatenating multiValued data
Date Mon, 16 Aug 2010 09:38:17 GMT
FastVectorHighlighter: add a method to set an arbitrary char that is used when concatenating
multiValued data
-------------------------------------------------------------------------------------------------------------

                 Key: LUCENE-2603
                 URL: https://issues.apache.org/jira/browse/LUCENE-2603
             Project: Lucene - Java
          Issue Type: Improvement
          Components: contrib/highlighter
    Affects Versions: 3.0.2, 2.9.3
            Reporter: Koji Sekiguchi
            Priority: Trivial
             Fix For: 3.1, 4.0


If the following multiValued names are in authors field:

* Michael McCandless
* Erik Hatcher
* Otis Gospodnetić

Since FragmentsBuilder concatenates multiValued data with a space in BaseFragmentsBuilder.getFragmentSource():

{code}
while( buffer.length() < endOffset && index[0] < values.length ){
  if( index[0] > 0 && values[index[0]].isTokenized() && values[index[0]].stringValue().length()
> 0 )
    buffer.append( ' ' );
  buffer.append( values[index[0]++].stringValue() );
}
{code}

an entire field snippet (using LUCENE-2464) will be "Michael McCandless Erik Hatcher Otis
Gospodnetić". There is a requirement an arbitrary char (e.g. '/') can be set so that client
can separate the snippet easily. i.e. "Michael McCandless/Erik Hatcher/Otis Gospodnetić"

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