org.apache.solr.search

Class SolrConstantScoreQuery

java.lang.Object

org.apache.lucene.search.Query

org.apache.solr.search.SolrConstantScoreQuery

All Implemented Interfaces:

ExtendedQuery

Direct Known Subclasses:

FunctionRangeQuery

public class SolrConstantScoreQuery
extends Query
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.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	SolrConstantScoreQuery.ConstantWeight

Constructor Summary

Constructors

Constructor and Description
SolrConstantScoreQuery(Filter filter)

Method Summary

Modifier and Type	Method and Description
Weight	createWeight(IndexSearcher searcher, ScoreMode scoreMode, float boost)
boolean	equals(Object other) Returns true if o is equal to this.
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.
Filter	getFilter() Returns the encapsulated filter
int	hashCode() Returns a hash code value for this object.
void	setCache(boolean cache)
void	setCacheSep(boolean cacheSep)
void	setCost(int cost)
String	toString(String field) Prints a user-readable version of this query.
void	visit(QueryVisitor visitor)

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

classHash, rewrite, sameClassAs, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SolrConstantScoreQuery

public SolrConstantScoreQuery(Filter filter)

Method Detail

getFilter

public Filter getFilter()

Returns the encapsulated filter

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

createWeight

public Weight createWeight(IndexSearcher searcher,
                           ScoreMode scoreMode,
                           float boost)
                    throws IOException

Overrides:

createWeight in class Query

Throws:

IOException

toString

public String toString(String field)

Prints a user-readable version of this query.

Specified by:

toString in class Query

equals

public boolean equals(Object other)

Returns true if o is equal to this.

Specified by:

equals in class Query

hashCode

public int hashCode()

Returns a hash code value for this object.

Specified by:

hashCode in class Query

visit

public void visit(QueryVisitor visitor)

Overrides:

visit in class Query