org.apache.jackrabbit.core.query.lucene.join

Class SameNodeJoin

java.lang.Object

org.apache.jackrabbit.core.query.lucene.join.AbstractCondition

org.apache.jackrabbit.core.query.lucene.join.SameNodeJoin

All Implemented Interfaces:

Condition

public class SameNodeJoin
extends AbstractCondition

SameNodeJoin implements a same node join condition.

Field Summary

Fields inherited from class org.apache.jackrabbit.core.query.lucene.join.AbstractCondition

inner

Constructor Summary

Constructors

Constructor and Description
SameNodeJoin(MultiColumnQueryHits inner, Name innerSelectorName, org.apache.lucene.index.IndexReader reader) Creates a new same node join.

Method Summary

Modifier and Type	Method and Description
ScoreNode[][]	getMatchingScoreNodes(ScoreNode outer) Returns the matching inner score nodes for the given outer score node sn.

Methods inherited from class org.apache.jackrabbit.core.query.lucene.join.AbstractCondition

close, getIndex, getInnerSelectorNames

Methods inherited from class java.lang.Object

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

Constructor Detail

SameNodeJoin

public SameNodeJoin(MultiColumnQueryHits inner,
                    Name innerSelectorName,
                    org.apache.lucene.index.IndexReader reader)
             throws IOException

Creates a new same node join.

Parameters:

inner - the inner query hits.

innerSelectorName - the selector name for the inner query hits.

reader - the index reader.

Throws:

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

Method Detail

getMatchingScoreNodes

public ScoreNode[][] getMatchingScoreNodes(ScoreNode outer)
                                    throws IOException

Returns the matching inner score nodes for the given outer score node sn.

Parameters:

outer - the current score nodes of the outer source.

Returns:

the matching score nodes in the inner source.

Throws:

IOException - if an error occurs while evaluating the condition.