Grafy

Project Settings

1. Download Neo4j Download
2. Install sbt Instruction
3. Make eclipse project

sumit@sumeet:~/workspace/Grafy$ sbt
> eclipse

How To Use

Build Connection

//Execution Context
implicit val context = play.api.libs.concurrent.Execution.Implicits.defaultContext
//Wsclient
implicit val system = ActorSystem()
implicit val materializer = ActorMaterializer()
implicit val ws = AhcWSClient()
//Build Connection with only user name and password
implicit val connection = Connection("neo4j", "farmer")
//Build connection with details (protocol: String,serverName: String,port:String,userName: String,password: String)
implicit val connectionWithDetails = Connection("http","localhost","7474","neo4j","farmer")

Create node

val nodeLabel = "Person"
//node property
val property = Map("name" -> "Steve Jobs", "email" -> "stevejobs@apple.com", "mobile" -> "9403586847")
Node.create(label, prop).onComplete { x => println(x.get)}   //Returns Node Id(Long)

Get node info

val node = Node(5) //Node(strlable:String, id: String)
val resultFuture = node.getInfo(List("email","mobile"))
for (info <- resultFuture) yield println(info) //Prints Map[key,value]

Update Node

//Property to update
val map = Map("email"-> "'sumit@nevitus.in'")
Node(22).update(map) 

Delete Node

//If a node is connected to another node, it can't delete
Node(22).delete

Find Node

//Build find query
val strCQL = "MATCH (node:Person) WHERE node.friend='sumit' return node.name"
Node.find(strCQL) 
//return  List(Map(node.name -> Some(Ramdas)),Map(node.name -> Some(Prashant)),Map(node.name -> Some(Mohanish)))
//Note key of map is return of node

Connect Nodes With Relation

val node = Node(5)
val strRelId: Future[Long]= connect("Friend", 8, true, Map()) //(relLabel: String, nodeId: String, from: Boolean, relProperties: Map[String, String])

Delete Relation

val rel = Relation(7)
rel.delete()