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

Class QueryHitsAdapter

java.lang.Object

org.apache.jackrabbit.core.query.lucene.QueryHitsAdapter

All Implemented Interfaces:

CloseableHits, MultiColumnQueryHits

public class QueryHitsAdapter
extends Object
implements MultiColumnQueryHits

QueryHitsAdapter implements an adapter for QueryHits and exposes them as MultiColumnQueryHits.

Constructor Summary

Constructors

Constructor	Description
QueryHitsAdapter(QueryHits hits, Name selectorName)	Creates a new adapter for hits.

Method Summary

Modifier and Type	Method	Description
void	close()	Releases resources held by this hits instance.
Name[]	getSelectorNames()
int	getSize()
ScoreNode[]	nextScoreNodes()	Returns the next score nodes in this QueryHits or null if there are no more score nodes.
void	skip(int n)	Skips a n score nodes.

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryHitsAdapter

public QueryHitsAdapter(QueryHits hits,
                        Name selectorName)

Creates a new adapter for hits.

Parameters:

hits - the query hits to adapt.

selectorName - the single selector name for the query hits.

Method Detail

nextScoreNodes

public ScoreNode[] nextScoreNodes()
                           throws IOException

Returns the next score nodes in this QueryHits or null if there are no more score nodes.

Specified by:

nextScoreNodes in interface MultiColumnQueryHits

Returns:

the next score nodes in this QueryHits.

Throws:

IOException - if an error occurs while reading from the index.

getSelectorNames

public Name[] getSelectorNames()

Specified by:

getSelectorNames in interface MultiColumnQueryHits

Returns:

the selector names that correspond to the ScoreNodes returned by MultiColumnQueryHits.nextScoreNodes().

close

public void close()
           throws IOException

Releases resources held by this hits instance.

Specified by:

close in interface CloseableHits

Throws:

IOException - if an error occurs while releasing resources.

getSize

public int getSize()

Specified by:

getSize in interface CloseableHits

Returns:

the number of results or -1 if the size is unknown.

skip

public void skip(int n)
          throws IOException

Skips a n score nodes.

Specified by:

skip in interface CloseableHits

Parameters:

n - the number of score nodes to skip.

Throws:

IOException - if an error occurs while skipping.