public abstract class IndriScorer extends Scorer
Scorable.ChildScorable
Modifier | Constructor and Description |
---|---|
protected |
IndriScorer(Weight weight,
float boost) |
Modifier and Type | Method and Description |
---|---|
abstract int |
docID()
Returns the doc ID that is currently being scored.
|
float |
getBoost() |
abstract float |
getMaxScore(int upTo)
Return the maximum score that documents between the last
target
that this iterator was shallow-advanced to
included and upTo included. |
abstract DocIdSetIterator |
iterator()
Return a
DocIdSetIterator over matching documents. |
abstract float |
score()
Returns the score of the current document matching the query.
|
abstract float |
smoothingScore(int docId)
Returns the smoothing score of the current document matching the query.
|
advanceShallow, getWeight, twoPhaseIterator
getChildren, setMinCompetitiveScore
protected IndriScorer(Weight weight, float boost)
public abstract DocIdSetIterator iterator()
Scorer
DocIdSetIterator
over matching documents.
The returned iterator will either be positioned on -1
if no
documents have been scored yet, DocIdSetIterator.NO_MORE_DOCS
if all documents have been scored already, or the last document id that
has been scored otherwise.
The returned iterator is a view: calling this method several times will
return iterators that have the same state.public abstract float getMaxScore(int upTo) throws
Scorer
target
that this iterator was shallow-advanced
to
included and upTo
included.getMaxScore
in class Scorer
public abstract float score() throws
Scorable
public abstract float smoothingScore(int docId) throws
Scorable
Smoothing scores are described in many papers, including: Metzler, D. and Croft, W. B. , "Combining the Language Model and Inference Network Approaches to Retrieval," Information Processing and Management Special Issue on Bayesian Networks and Information Retrieval, 40(5), pp.735-750.
smoothingScore
in class Scorable
public abstract int docID()
Scorable
public float getBoost()
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