java.lang.Object | ||
↳ | org.apache.lucene.search.Weight | |
↳ | org.apache.lucene.search.BooleanQuery.BooleanWeight |
Expert: the Weight for BooleanQuery, used to normalize, score and explain these queries.
NOTE: this API and implementation is subject to change suddenly in the next release.
Fields | |||||||||||
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similarity | The Similarity implementation. | ||||||||||
weights |
Public Constructors | |||||||||||
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Public Methods | |||||||||||
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An explanation of the score computation for the named document.
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The query that this concerns.
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The weight for this query.
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Assigns the query normalization factor to this.
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Returns a
Scorer which scores documents in/out-of order according
to scoreDocsInOrder . | |||||||||||
Returns true iff this implementation scores docs only out of order.
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The sum of squared weights of contained query clauses.
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[Expand]
Inherited Methods | |||||||||||
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From class
org.apache.lucene.search.Weight
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From class
java.lang.Object
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An explanation of the score computation for the named document.
reader | sub-reader containing the give doc |
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IOException |
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The weight for this query.
Assigns the query normalization factor to this.
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 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.
reader | the IndexReader for which to return the Scorer . |
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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 nextDoc()
and/or advance(int) , therefore it is recommended to
request an in-order scorer if use of these methods is required. |
topScorer | if true, score(Collector) will be called; if false,
nextDoc() and/or advance(int) will
be called. |
Scorer
which scores documents in/out-of order.IOException |
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Returns true iff this implementation scores docs only out of order. This
method is used in conjunction with Collector
's
acceptsDocsOutOfOrder
and
scorer(org.apache.lucene.index.IndexReader, boolean, boolean)
to
create a matching Scorer
instance for a given Collector
, or
vice versa.
NOTE: the default implementation returns false
, i.e.
the Scorer
scores documents in-order.
The sum of squared weights of contained query clauses.
IOException |
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