org.elasticsearch.common.lucene.search

Class Queries

java.lang.Object

org.elasticsearch.common.lucene.search.Queries

public class Queries
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.lucene.search.Filter	MATCH_ALL_FILTER A match all docs filter.
static org.apache.lucene.search.Filter	MATCH_NO_FILTER

Constructor Summary

Constructors

Constructor and Description
Queries()

Method Summary

Modifier and Type	Method and Description
static void	applyMinimumShouldMatch(org.apache.lucene.search.BooleanQuery query, String minimumShouldMatch)
static int	calculateMinShouldMatch(int optionalClauseCount, String spec)
static org.apache.lucene.search.Query	fixNegativeQueryIfNeeded(org.apache.lucene.search.Query q)
static boolean	isConstantMatchAllQuery(org.apache.lucene.search.Query query)
static boolean	isNegativeQuery(org.apache.lucene.search.Query q)
static org.apache.lucene.search.Query	newMatchAllQuery()
static org.apache.lucene.search.Query	newMatchNoDocsQuery() Return a query that matches no document.
static org.apache.lucene.search.Filter	wrap(org.apache.lucene.search.Query query, QueryParseContext context) Wraps a query in a filter.

Methods inherited from class java.lang.Object

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

Field Detail

MATCH_ALL_FILTER

public static final org.apache.lucene.search.Filter MATCH_ALL_FILTER

A match all docs filter. Note, requires no caching!.

MATCH_NO_FILTER

public static final org.apache.lucene.search.Filter MATCH_NO_FILTER

Constructor Detail

Queries

public Queries()

Method Detail

newMatchAllQuery

public static org.apache.lucene.search.Query newMatchAllQuery()

newMatchNoDocsQuery

public static org.apache.lucene.search.Query newMatchNoDocsQuery()

Return a query that matches no document.

isNegativeQuery

public static boolean isNegativeQuery(org.apache.lucene.search.Query q)

fixNegativeQueryIfNeeded

public static org.apache.lucene.search.Query fixNegativeQueryIfNeeded(org.apache.lucene.search.Query q)

isConstantMatchAllQuery

public static boolean isConstantMatchAllQuery(org.apache.lucene.search.Query query)

applyMinimumShouldMatch

public static void applyMinimumShouldMatch(org.apache.lucene.search.BooleanQuery query,
                                           @Nullable
                                           String minimumShouldMatch)

calculateMinShouldMatch

public static int calculateMinShouldMatch(int optionalClauseCount,
                                          String spec)

wrap

public static org.apache.lucene.search.Filter wrap(org.apache.lucene.search.Query query,
                                                   QueryParseContext context)

Wraps a query in a filter. If a filter has an anti per segment execution / caching nature then @CustomQueryWrappingFilter is returned otherwise the standard QueryWrapperFilter is returned.