package org.neo4j.kernel.impl.traversal;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.RelationshipExpander;
import org.neo4j.graphdb.traversal.TraversalBranch;
import org.neo4j.kernel.impl.traversal.TraverserImpl.TraverserIterator;
class StartNodeExpansionSource extends ExpansionSourceImpl
{
StartNodeExpansionSource( TraverserIterator traverser, Node source,
RelationshipExpander expander )
{
super( traverser, source, expander );
}
@Override
public TraversalBranch next()
{
if ( !hasExpandedRelationships() )
{
if ( traverser.uniquness.type == PrimitiveTypeFetcher.RELATIONSHIP
|| traverser.okToProceed( this ) )
{
expandRelationships( false );
return this;
}
else
{
return null;
}
}
return super.next();
}
}