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

All Known Implementing Classes:

AbstractCondition, AncestorNodeJoin, AncestorPathNodeJoin, ChildNodeJoin, DescendantNodeJoin, DescendantPathNodeJoin, EquiJoin, ParentNodeJoin, SameNodeJoin

public interface Condition

Condition defines an interface for a join condition.

Method Summary

void	close() Closes this condition and frees resources.
Name[]	getInnerSelectorNames()
ScoreNode[][]	getMatchingScoreNodes(ScoreNode outer) Returns the matching inner score nodes for the given outer score node sn.

Method Detail

getMatchingScoreNodes

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.

getInnerSelectorNames

Name[] getInnerSelectorNames()

Returns:

the selector name of the inner hits.

close

void close()
           throws IOException

Closes this condition and frees resources.

Throws:

IOException - if an error occurs while closing this condition.