org.apache.lucene.search.payloads
Class PayloadNearQuery.PayloadNearSpanWeight

java.lang.Object
  extended by org.apache.lucene.search.Weight
      extended by org.apache.lucene.search.spans.SpanWeight
          extended by org.apache.lucene.search.payloads.PayloadNearQuery.PayloadNearSpanWeight
All Implemented Interfaces:
Serializable
Enclosing class:
PayloadNearQuery

public class PayloadNearQuery.PayloadNearSpanWeight
extends SpanWeight

See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.apache.lucene.search.spans.SpanWeight
idf, query, queryNorm, queryWeight, similarity, terms, value
 
Constructor Summary
PayloadNearQuery.PayloadNearSpanWeight(SpanQuery query, Searcher searcher)
           
 
Method Summary
 Scorer scorer(IndexReader reader, boolean scoreDocsInOrder, boolean topScorer)
          Returns a Scorer which scores documents in/out-of order according to scoreDocsInOrder.
 
Methods inherited from class org.apache.lucene.search.spans.SpanWeight
explain, getQuery, getValue, normalize, sumOfSquaredWeights
 
Methods inherited from class org.apache.lucene.search.Weight
scoresDocsOutOfOrder
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

PayloadNearQuery.PayloadNearSpanWeight

public PayloadNearQuery.PayloadNearSpanWeight(SpanQuery query,
                                              Searcher searcher)
                                       throws IOException
Throws:
IOException
Method Detail

scorer

public Scorer scorer(IndexReader reader,
                     boolean scoreDocsInOrder,
                     boolean topScorer)
              throws IOException
Description copied from class: Weight
Returns a Scorer which scores documents in/out-of order according to scoreDocsInOrder.

NOTE: even if scoreDocsInOrder is false, it is recommended to check whether the returned Scorer indeed scores documents out of order (i.e., call Weight.scoresDocsOutOfOrder()), as some Scorer implementations will always return documents in-order.
NOTE: null can be returned if no documents will be scored by this query.

Overrides:
scorer in class SpanWeight
Parameters:
reader - the IndexReader 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.
Returns:
a Scorer which scores documents in/out-of order.
Throws:
IOException


Copyright © 2000-2010 Apache Software Foundation. All Rights Reserved.