/**
* Copyright (c) 2002-2013 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.collections.indexedrelationship;
import static junit.framework.Assert.assertEquals;
import org.junit.Test;
import org.neo4j.collections.Neo4jTestCase;
import org.neo4j.collections.list.UnrolledLinkedList;
import org.neo4j.graphdb.Direction;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.Relationship;
import org.neo4j.graphdb.RelationshipType;
public class TestUnrolledLinkedListRelationshipProperties extends Neo4jTestCase
{
public static class IdComparator implements java.util.Comparator<Node>
{
public int compare( Node n1, Node n2 )
{
return ((Long) n1.getId()).compareTo( n2.getId() );
}
}
public static enum RelTypes implements RelationshipType
{
INDEXED_RELATIONSHIP
}
@Test
public void testIndexRelationshipAttributes()
{
Node indexedNode = graphDb().createNode();
UnrolledLinkedList ull = new UnrolledLinkedList( graphDb(), new IdComparator(), 4 );
IndexedRelationship ir = new IndexedRelationship( indexedNode, RelTypes.INDEXED_RELATIONSHIP,
Direction.OUTGOING, ull );
Node node1 = graphDb().createNode();
node1.setProperty( "name", "node 1" );
Node node2 = graphDb().createNode();
node2.setProperty( "name", "node 2" );
Relationship relationship1 = ir.createRelationshipTo( node1 );
relationship1.setProperty( "rel property", "relationship 1" );
Relationship relationship2 = ir.createRelationshipTo( node2 );
relationship2.setProperty( "rel property", "relationship 2" );
IndexedRelationshipExpander expander = new IndexedRelationshipExpander( graphDb(), Direction.OUTGOING,
RelTypes.INDEXED_RELATIONSHIP );
int count = 0;
for ( Relationship rel : expander.expand( indexedNode ) )
{
if ( rel.getEndNode().equals( node1 ) )
{
assertEquals( "relationship 1", rel.getProperty( "rel property" ) );
}
if ( rel.getEndNode().equals( node2 ) )
{
assertEquals( "relationship 2", rel.getProperty( "rel property" ) );
}
count++;
}
assertEquals( 2, count );
}
@Test
public void testIndexRelationshipAttributesFromDestination()
{
Node indexedNode = graphDb().createNode();
UnrolledLinkedList ull1 = new UnrolledLinkedList( graphDb(), new IdComparator(), 4 );
IndexedRelationship ir = new IndexedRelationship( indexedNode, RelTypes.INDEXED_RELATIONSHIP,
Direction.OUTGOING, ull1 );
Node indexedNode2 = graphDb().createNode();
UnrolledLinkedList ull2 = new UnrolledLinkedList( graphDb(), new IdComparator(), 4 );
IndexedRelationship ir2 = new IndexedRelationship( indexedNode2, RelTypes.INDEXED_RELATIONSHIP,
Direction.OUTGOING, ull2 );
Node destination = graphDb().createNode();
destination.setProperty( "name", "node 1" );
Relationship relationship1 = ir.createRelationshipTo( destination );
relationship1.setProperty( "rel property", "relationship 1" );
Relationship relationship2 = ir2.createRelationshipTo( destination );
relationship2.setProperty( "rel property", "relationship 2" );
IndexedRelationshipExpander expander = new IndexedRelationshipExpander( graphDb(), Direction.INCOMING,
RelTypes.INDEXED_RELATIONSHIP );
int count = 0;
for ( Relationship rel : expander.expand( destination ) )
{
if ( rel.getStartNode().equals( indexedNode ) )
{
assertEquals( rel.getProperty( "rel property" ), "relationship 1" );
}
if ( rel.getStartNode().equals( indexedNode2 ) )
{
assertEquals( rel.getProperty( "rel property" ), "relationship 2" );
}
count++;
}
assertEquals( 2, count );
}
}