package org.neo4j.graphdb;
/**
* An expander of relationships. It's a flexible way of getting relationships
* from a node.
*/
public interface RelationshipExpander
{
/**
* Returns relationships for a node in whatever way the implementation
* likes.
*
* @param node the node to expand.
* @return the relationships to return for the {@code node}.
*/
Iterable<Relationship> expand( Node node );
/**
* Returns a new instance with the exact same {@link RelationshipType}s, but
* with all directions reversed (see {@link Direction#reverse()}).
*
* @return a {@link RelationshipExpander} with the same types, but with
* reversed directions.
*/
RelationshipExpander reversed();
}