Patch for ShingleFilter.coterminalPositionIncrement
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Key: LUCENE-1380
URL: https://issues.apache.org/jira/browse/LUCENE-1380
Project: Lucene - Java
Issue Type: Improvement
Components: contrib/analyzers
Reporter: Michael Semb Wever
Fix For: 2.4
Make it possible for *all* words and shingles to be placed at the same position.
Default is to place each shingle at the same position as the unigram (or first
shingle if outputUnigrams=false). That is, each coterminal token has
positionIncrement=1 and every other token a positionIncrement=0.
This leads to a MultiPhraseQuery where at least one word/shingle must be
matched from each word/token. This is not always desired.
See http://comments.gmane.org/gmane.comp.jakarta.lucene.user/34746 for mailing
list thread.
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