org.apache.lucene.search.uhighlight

Class MultiTermHighlighting.AutomataCollector

java.lang.Object

org.apache.lucene.search.QueryVisitor

org.apache.lucene.search.uhighlight.MultiTermHighlighting.AutomataCollector

Enclosing class:

MultiTermHighlighting

private static class MultiTermHighlighting.AutomataCollector
extends QueryVisitor

Field Summary

Fields

Modifier and Type	Field and Description
(package private) java.util.function.Predicate<java.lang.String>	fieldMatcher
(package private) boolean	lookInSpan
(package private) java.util.List<CharacterRunAutomaton>	runAutomata

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

EMPTY_VISITOR

Constructor Summary

Constructors

Modifier	Constructor and Description
private	AutomataCollector(boolean lookInSpan, java.util.function.Predicate<java.lang.String> fieldMatcher)

Method Summary

Modifier and Type	Method and Description
boolean	acceptField(java.lang.String field) Whether or not terms from this field are of interest to the visitor Implement this to avoid collecting terms from heavy queries such as TermInSetQuery that are not running on fields of interest
QueryVisitor	getSubVisitor(BooleanClause.Occur occur, Query parent) Pulls a visitor instance for visiting child clauses of a query The default implementation returns this, unless occur is equal to BooleanClause.Occur.MUST_NOT in which case it returns QueryVisitor.EMPTY_VISITOR
void	visitLeaf(Query query) Called by leaf queries that do not match on terms

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

consumeTerms, termCollector

Methods inherited from class java.lang.Object

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

Field Detail

runAutomata

java.util.List<CharacterRunAutomaton> runAutomata

lookInSpan

final boolean lookInSpan

fieldMatcher

final java.util.function.Predicate<java.lang.String> fieldMatcher

Constructor Detail

AutomataCollector

private AutomataCollector(boolean lookInSpan,
                          java.util.function.Predicate<java.lang.String> fieldMatcher)

Method Detail

acceptField

public boolean acceptField(java.lang.String field)

Description copied from class: QueryVisitor

Whether or not terms from this field are of interest to the visitor Implement this to avoid collecting terms from heavy queries such as TermInSetQuery that are not running on fields of interest

Overrides:

acceptField in class QueryVisitor

getSubVisitor

public QueryVisitor getSubVisitor(BooleanClause.Occur occur,
                                  Query parent)

Description copied from class: QueryVisitor

Pulls a visitor instance for visiting child clauses of a query The default implementation returns this, unless occur is equal to BooleanClause.Occur.MUST_NOT in which case it returns QueryVisitor.EMPTY_VISITOR

Overrides:

getSubVisitor in class QueryVisitor

Parameters:

occur - the relationship between the parent and its children

parent - the query visited

visitLeaf

public void visitLeaf(Query query)

Description copied from class: QueryVisitor

Called by leaf queries that do not match on terms

Overrides:

visitLeaf in class QueryVisitor

Parameters:

query - the query