org.apache.lucene.search

Class PhraseWildcardQuery.Builder

java.lang.Object

org.apache.lucene.search.PhraseWildcardQuery.Builder

Enclosing class:

PhraseWildcardQuery

public static class PhraseWildcardQuery.Builder
extends Object

Builds a PhraseWildcardQuery.

Field Summary

Fields

Modifier and Type	Field and Description
protected String	field
protected int	maxMultiTermExpansions
protected List<PhraseWildcardQuery.PhraseTerm>	phraseTerms
protected boolean	segmentOptimizationEnabled
protected int	slop

Constructor Summary

Constructors

Constructor and Description
Builder(String field, int maxMultiTermExpansions)
Builder(String field, int maxMultiTermExpansions, boolean segmentOptimizationEnabled)

Method Summary

Modifier and Type	Method and Description
PhraseWildcardQuery.Builder	addMultiTerm(MultiTermQuery multiTermQuery) Adds a multi-term at the next position in the phrase.
PhraseWildcardQuery.Builder	addTerm(BytesRef termBytes) Adds a single term at the next position in the phrase.
PhraseWildcardQuery.Builder	addTerm(Term term) Adds a single term at the next position in the phrase.
PhraseWildcardQuery	build() Builds a PhraseWildcardQuery.
PhraseWildcardQuery.Builder	setSlop(int slop) Sets the phrase slop.

Methods inherited from class java.lang.Object

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

Field Detail

field

protected final String field

phraseTerms

protected final List<PhraseWildcardQuery.PhraseTerm> phraseTerms

slop

protected int slop

maxMultiTermExpansions

protected final int maxMultiTermExpansions

segmentOptimizationEnabled

protected final boolean segmentOptimizationEnabled

Constructor Detail

Builder

public Builder(String field,
               int maxMultiTermExpansions)

Parameters:

field - The query field.

maxMultiTermExpansions - The maximum number of expansions across all multi-terms and across all segments. It counts expansions for each segments individually, that allows optimizations per segment and unused expansions are credited to next segments. This is different from MultiPhraseQuery and SpanMultiTermQueryWrapper which have an expansion limit per multi-term.

Builder

public Builder(String field,
               int maxMultiTermExpansions,
               boolean segmentOptimizationEnabled)

Parameters:

field - The query field.

maxMultiTermExpansions - The maximum number of expansions across all multi-terms and across all segments. It counts expansions for each segments individually, that allows optimizations per segment and unused expansions are credited to next segments. This is different from MultiPhraseQuery and SpanMultiTermQueryWrapper which have an expansion limit per multi-term.

segmentOptimizationEnabled - Whether to enable the segment optimization which consists in ignoring a segment for further analysis as soon as a term is not present inside it. This optimizes the query execution performance but changes the scoring. The result ranking is preserved.

Method Detail

addTerm

public PhraseWildcardQuery.Builder addTerm(BytesRef termBytes)

Adds a single term at the next position in the phrase.

addTerm

public PhraseWildcardQuery.Builder addTerm(Term term)

Adds a single term at the next position in the phrase.

addMultiTerm

public PhraseWildcardQuery.Builder addMultiTerm(MultiTermQuery multiTermQuery)

Adds a multi-term at the next position in the phrase. Any of the terms returned by the provided MultiTermQuery enumeration may match (expansion as a disjunction).

setSlop

public PhraseWildcardQuery.Builder setSlop(int slop)

Sets the phrase slop.

build

public PhraseWildcardQuery build()

Builds a PhraseWildcardQuery.