org.apache.solr.search

Class SolrConstantScoreQuery

java.lang.Object

org.apache.lucene.search.Query

org.apache.lucene.search.ConstantScoreQuery

org.apache.solr.search.SolrConstantScoreQuery

All Implemented Interfaces:

Serializable, Cloneable, ExtendedQuery

public class SolrConstantScoreQuery
extends org.apache.lucene.search.ConstantScoreQuery
implements ExtendedQuery

A query that wraps a filter and simply returns a constant score equal to the query boost for every document in the filter. This Solr extension also supports weighting of a SolrFilter. Experimental and subject to change.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	SolrConstantScoreQuery.ConstantScorer
protected class	SolrConstantScoreQuery.ConstantWeight

Field Summary

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

filter, query

Constructor Summary

Constructors

Constructor and Description
SolrConstantScoreQuery(org.apache.lucene.search.Filter filter)

Method Summary

Methods

Modifier and Type	Method and Description
org.apache.lucene.search.Weight	createWeight(org.apache.lucene.search.Searcher searcher)
boolean	equals(Object o) Returns true if o is equal to this.
void	extractTerms(Set terms)
boolean	getCache() Should this query be cached in the query cache or filter cache.
boolean	getCacheSep() If true, the clauses of this boolean query should be cached separately.
int	getCost() Returns the cost of this query, used to order checking of filters that are not cached.
org.apache.lucene.search.Filter	getFilter() Returns the encapsulated filter
int	hashCode() Returns a hash code value for this object.
org.apache.lucene.search.Query	rewrite(org.apache.lucene.index.IndexReader reader)
void	setCache(boolean cache)
void	setCacheSep(boolean cacheSep)
void	setCost(int cost)
String	toString(String field) Prints a user-readable version of this query.

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

getQuery

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

clone, combine, getBoost, getSimilarity, mergeBooleanQueries, setBoost, toString, weight

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SolrConstantScoreQuery

public SolrConstantScoreQuery(org.apache.lucene.search.Filter filter)

Method Detail

getFilter

public org.apache.lucene.search.Filter getFilter()

Returns the encapsulated filter

Overrides:

getFilter in class org.apache.lucene.search.ConstantScoreQuery

setCache

public void setCache(boolean cache)

Specified by:

setCache in interface ExtendedQuery

getCache

public boolean getCache()

Description copied from interface: ExtendedQuery

Should this query be cached in the query cache or filter cache.

Specified by:

getCache in interface ExtendedQuery

setCacheSep

public void setCacheSep(boolean cacheSep)

Specified by:

setCacheSep in interface ExtendedQuery

getCacheSep

public boolean getCacheSep()

Description copied from interface: ExtendedQuery

If true, the clauses of this boolean query should be cached separately. This is not yet implemented.

Specified by:

getCacheSep in interface ExtendedQuery

setCost

public void setCost(int cost)

Specified by:

setCost in interface ExtendedQuery

getCost

public int getCost()

Description copied from interface: ExtendedQuery

Returns the cost of this query, used to order checking of filters that are not cached. If getCache()==false && getCost()>=100 && this instanceof PostFilter, then the PostFilter interface will be used for filtering.

Specified by:

getCost in interface ExtendedQuery

rewrite

public org.apache.lucene.search.Query rewrite(org.apache.lucene.index.IndexReader reader)
                                       throws IOException

Overrides:

rewrite in class org.apache.lucene.search.ConstantScoreQuery

Throws:

IOException

extractTerms

public void extractTerms(Set terms)

Overrides:

extractTerms in class org.apache.lucene.search.ConstantScoreQuery

createWeight

public org.apache.lucene.search.Weight createWeight(org.apache.lucene.search.Searcher searcher)

Overrides:

createWeight in class org.apache.lucene.search.ConstantScoreQuery

toString

public String toString(String field)

Prints a user-readable version of this query.

Overrides:

toString in class org.apache.lucene.search.ConstantScoreQuery

equals

public boolean equals(Object o)

Returns true if o is equal to this.

Overrides:

equals in class org.apache.lucene.search.ConstantScoreQuery

hashCode

public int hashCode()

Returns a hash code value for this object.

Overrides:

hashCode in class org.apache.lucene.search.ConstantScoreQuery