@Transactional
public void setupReferenceRelationship() {
Node referenceNode = template.getReferenceNode();
Actor bacon = actorRepository.findByPropertyValue("name", "Bacon, Kevin");
if (bacon == null) throw new NoSuchElementException("Unable to find Kevin Bacon actor");
referenceNode.createRelationshipTo(bacon.getPersistentState(), RelTypes.IMDB);
}
public List<?> getBaconPath(final Actor actor) {
if (actor == null) throw new IllegalArgumentException("Null actor");
Actor bacon = actorRepository.findByPropertyValue("name", "Bacon, Kevin");
Path path =
GraphAlgoFactory.shortestPath(
(PathExpander) StandardExpander.DEFAULT.add(RelTypes.ACTS_IN), 10)
.findSinglePath(bacon.getPersistentState(), actor.getPersistentState());
if (path == null) return Collections.emptyList();
return convertNodesToActorsAndMovies(path);
}
public Actor getActor(final String name) {
Actor actor = actorRepository.findByPropertyValue("name", name);
if (actor != null) return actor;
return searchEngine.searchActor(name);
}
