Package org.apache.jackrabbit.core.query.lucene

Class QueryHitsQuery

java.lang.Object

org.apache.lucene.search.Query

org.apache.jackrabbit.core.query.lucene.QueryHitsQuery

All Implemented Interfaces:

Serializable, Cloneable, JackrabbitQuery

public class QueryHitsQuery
extends org.apache.lucene.search.Query
implements JackrabbitQuery

QueryHitsQuery exposes a QueryHits implementation again as a Lucene Query.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	QueryHitsQuery.QueryHitsQueryScorer	the scorer implementation for this query.
class	QueryHitsQuery.QueryHitsQueryWeight	The Weight implementation for this query.

Constructor Summary

Constructors

Constructor	Description
QueryHitsQuery(QueryHits hits)	Creates a new query based on QueryHits.

Method Summary

Modifier and Type	Method	Description
org.apache.lucene.search.Weight	createWeight(org.apache.lucene.search.Searcher searcher)
QueryHits	execute(JackrabbitIndexSearcher searcher, SessionImpl session, org.apache.lucene.search.Sort sort)	Executes this query and returns QueryHits or null if this query should be executed using the regular Lucene API.
void	extractTerms(Set<org.apache.lucene.index.Term> terms)
String	toString(String field)

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

clone, combine, equals, getBoost, getSimilarity, hashCode, mergeBooleanQueries, rewrite, setBoost, toString, weight

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryHitsQuery

public QueryHitsQuery(QueryHits hits)

Creates a new query based on QueryHits.

Parameters:

hits - the query hits.

Method Detail

createWeight

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

Overrides:

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

Throws:

IOException

toString

public String toString(String field)

Specified by:

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

extractTerms

public void extractTerms(Set<org.apache.lucene.index.Term> terms)

Overrides:

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

execute

public QueryHits execute(JackrabbitIndexSearcher searcher,
                         SessionImpl session,
                         org.apache.lucene.search.Sort sort)
                  throws IOException

Executes this query and returns QueryHits or null if this query should be executed using the regular Lucene API.

Important note: an implementation must not call JackrabbitIndexSearcher.execute(Query, Sort, long, org.apache.jackrabbit.spi.Name) with this query instance as a parameter, otherwise a stack overflow will occur.

Specified by:

execute in interface JackrabbitQuery

Parameters:

searcher - the jackrabbit index searcher.

session - the session that executes the query.

sort - the sort criteria that must be reflected in the returned QueryHits.

Returns:

the query hits or null if the regular Lucene API should be used by the caller.

Throws:

IOException - if an error occurs while executing the query.