Spring Data Neo4j - Practical Neo4j - page 289

// create rel bewteen the last content and
// now new next to last content
neo4jTemplate.createRelationshipBetween (
neo4jTemplate.getNode(currentPost.getNodeId()),
neo4jTemplate.getNode(newNextToLastPost.getNodeId()),
GraphStoryConstants.NEXTPOST, null ) ;
// set the next
currentPost.setNext(newNextToLastPost);
// save it
contentRepository.save (currentPost);
}
} else {
Content previousPost = contentRepository.prevpost (content.getNodeId());
// remove the rel between prevpost and content
neo4jTemplate.deleteRelationshipBetween( previousPost, content,
GraphStoryConstants.NEXTPOST ) ;
if (content.getNext().getNodeId() != null) {
Content newNextPost =
contentRepository.findOne (content.getNext().getNodeId());
neo4jTemplate.deleteRelationshipBetween( content, newNextPost,
GraphStoryConstants.NEXTPOST );
neo4jTemplate.createRelationshipBetween(
neo4jTemplate.getNode(previousPost.getNodeId()),
neo4jTemplate.getNode(newNextPost.getNodeId()),
GraphStoryConstants.NEXTPOST, null ) ;
// set the next
previousPost.setNext(newNextPost);
// save it
contentRepository.save (previousPost);
}
}
}
// delete the content
neo4jTemplate.delete (content);
}