public abstract static class FilteredQuery.FilterStrategy extends Object
DocIdSet
) applied during document collection.Constructor and Description |
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FilteredQuery.FilterStrategy() |
Modifier and Type | Method and Description |
---|---|
abstract Scorer |
filteredScorer(AtomicReaderContext context,
boolean scoreDocsInOrder,
boolean topScorer,
Weight weight,
DocIdSet docIdSet)
Returns a filtered
Scorer based on this strategy. |
public abstract Scorer filteredScorer(AtomicReaderContext context, boolean scoreDocsInOrder, boolean topScorer, Weight weight, DocIdSet docIdSet) throws IOException
Scorer
based on this strategy.context
- the AtomicReaderContext
for which to return the Scorer
.scoreDocsInOrder
- specifies whether in-order scoring of documents is required. Note
that if set to false (i.e., out-of-order scoring is required),
this method can return whatever scoring mode it supports, as every
in-order scorer is also an out-of-order one. However, an
out-of-order scorer may not support DocIdSetIterator.nextDoc()
and/or DocIdSetIterator.advance(int)
, therefore it is recommended to
request an in-order scorer if use of these methods is required.topScorer
- if true, Scorer.score(Collector)
will be called; if false,
DocIdSetIterator.nextDoc()
and/or DocIdSetIterator.advance(int)
will
be called.weight
- the FilteredQuery
Weight
to create the filtered scorer.docIdSet
- the filter DocIdSet
to applyIOException
- if an IOException
occursCopyright © 2000-2013 Apache Software Foundation. All Rights Reserved.