For ease of use and testing this module provide a wrapper to the
var srv = new Neo4jServer assert srv.start_quiet
In order to connect to Neo4j you need a connector:
var client = new Neo4jClient("http://localhost:7474") assert client.is_ok
The fundamental units that form a graph are nodes and relationships.
Nodes are used to represent entities stored in base:
var andres = new NeoNode andres["name"] = "Andres" # Connect the node to Neo4j client.save_node(andres) assert andres.is_linked # Create a second node var kate = new NeoNode kate["name"] = "Kate" client.save_node(kate) assert kate.is_linked
Relationships between nodes are a key part of a graph database. They allow for finding related data. Just like nodes, relationships can have properties.
var loves = new NeoEdge(andres, "LOVES", kate) client.save_edge(loves) assert loves.is_linked
Nodes can also be loaded fron Neo4j:
var url = andres.url.to_s var from = client.load_node(url) assert from["name"].to_s == "Andres" var to = from.out_nodes("LOVES").first # follow the first LOVES relationship assert to["name"].to_s == "Kate"
For more details, see http://docs.neo4j.org/chunked/milestone/rest-api.html