Module org.apache.lucene.suggest

Package org.apache.lucene.search.suggest.document

Class ContextQuery.ContextCompletionWeight

java.lang.Object

org.apache.lucene.search.Weight

org.apache.lucene.search.suggest.document.CompletionWeight

org.apache.lucene.search.suggest.document.ContextQuery.ContextCompletionWeight

All Implemented Interfaces:

SegmentCacheable

Enclosing class:

ContextQuery

private static class ContextQuery.ContextCompletionWeight
extends CompletionWeight

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.search.Weight

Weight.DefaultBulkScorer

Field Summary

Fields

Modifier and Type	Field	Description
private final int[]	contextLengths
private final Map<IntsRef,Float>	contextMap
private float	currentBoost
private CharSequence	currentContext
private final CompletionWeight	innerWeight
private final BytesRefBuilder	scratch

Fields inherited from class org.apache.lucene.search.Weight

parentQuery

Constructor Summary

Constructors

Constructor	Description
ContextCompletionWeight(CompletionQuery query, Automaton automaton, CompletionWeight innerWeight, Map<IntsRef,Float> contextMap, int[] contextLengths)

Method Summary

Modifier and Type	Method	Description
protected float	boost()	Returns the boost of the partial path set by CompletionWeight.setNextMatch(IntsRef)
protected CharSequence	context()	Returns the context of the partial path set by CompletionWeight.setNextMatch(IntsRef)
private void	setInnerWeight(IntsRef ref, int offset)
protected void	setNextMatch(IntsRef pathPrefix)	Set for every partial path in the index that matched the query automaton.

Methods inherited from class org.apache.lucene.search.suggest.document.CompletionWeight

bulkScorer, explain, getAutomaton, isCacheable, scorer

Methods inherited from class org.apache.lucene.search.Weight

count, getQuery, matches, scorerSupplier

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

contextMap

private final Map<IntsRef,Float> contextMap

contextLengths

private final int[] contextLengths

innerWeight

private final CompletionWeight innerWeight

scratch

private final BytesRefBuilder scratch

currentBoost

private float currentBoost

currentContext

private CharSequence currentContext

Constructor Details

ContextCompletionWeight

public ContextCompletionWeight(CompletionQuery query,
 Automaton automaton,
 CompletionWeight innerWeight,
 Map<IntsRef,Float> contextMap,
 int[] contextLengths)
                        throws IOException

Throws:

IOException

Method Details

setNextMatch

protected void setNextMatch(IntsRef pathPrefix)

Description copied from class: CompletionWeight

Set for every partial path in the index that matched the query automaton.

Subclasses should override CompletionWeight.boost() and CompletionWeight.context() to return an appropriate value with respect to the current pathPrefix.

Overrides:

setNextMatch in class CompletionWeight

Parameters:

pathPrefix - the prefix of a matched path

setInnerWeight

private void setInnerWeight(IntsRef ref,
 int offset)

context

protected CharSequence context()

Description copied from class: CompletionWeight

Returns the context of the partial path set by CompletionWeight.setNextMatch(IntsRef)

Overrides:

context in class CompletionWeight

Returns:

suggestion context

boost

protected float boost()

Description copied from class: CompletionWeight

Returns the boost of the partial path set by CompletionWeight.setNextMatch(IntsRef)

Overrides:

boost in class CompletionWeight

Returns:

suggestion query-time boost