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

java.lang.Object
  org.apache.jackrabbit.core.query.lucene.join.AbstractCondition

All Implemented Interfaces:

Condition

Direct Known Subclasses:

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

public abstract class AbstractCondition
extends Object
implements Condition

AbstractCondition is a base class for join conditions.

Field Summary

protected MultiColumnQueryHits

inner The inner query hits.

Constructor Summary

AbstractCondition(MultiColumnQueryHits inner)
Creates a new join condition with the given inner query hits.

Method Summary

void	close() Closes this join condition and frees resources.
protected static int	getIndex(MultiColumnQueryHits source, Name selectorName) Returns the index of the selector with the given selectorName within the given source.
Name[]	getInnerSelectorNames()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.jackrabbit.core.query.lucene.join.Condition

getMatchingScoreNodes

Field Detail

inner

protected final MultiColumnQueryHits inner

The inner query hits.

Constructor Detail

AbstractCondition

public AbstractCondition(MultiColumnQueryHits inner)

Creates a new join condition with the given inner query hits.

Parameters:

inner - the inner query hits.

Method Detail

getInnerSelectorNames

public Name[] getInnerSelectorNames()

Specified by:

getInnerSelectorNames in interface Condition

Returns:

selector names of the inner query hits.

close

public void close()
           throws IOException

Closes this join condition and frees resources. Namely closes the inner query hits.

Specified by:

close in interface Condition

Throws:

IOException - if an error occurs while closing the inner query hits.

getIndex

protected static int getIndex(MultiColumnQueryHits source,
                              Name selectorName)

Returns the index of the selector with the given selectorName within the given source.

Parameters:

source - a source.

selectorName - a selector name.

Returns:

the index within the source or -1 if the name does not exist in source.