Obtain a String in Json format from a Vertex instance

Question

In a Java application with an OrientDB database, after I have a Vertex object, I need to extract its properties in a String object. This object must be in Json format. An example of expected result is:

 {"@type":"d","@rid":"#13:1093","@version":1,"@class":"V_Notification","lastUpdateDate":"2016-07-20 16:45:31","lastUpdateUser":"#12:41","creationDate":"2016-07-20 16:45:31","creationUser":"#12:41","type":"user_added_to_share_made_upload","description":"user_added_to_share_made_upload","sphereId":"#16:18","out_E_NotificationUser":["#45:1091"],"deleted":false,"version":0,"isRead":false,"@fieldTypes":"lastUpdateDate=t,lastUpdateUser=x,creationDate=t,creationUser=x,out_E_NotificationUser=g"}

Answer 1

You could use

OrientVertex v=g.getVertex("#9:0");
ODocument d=v.getRecord();
String json=d.toJSON();

Hope it helps

Answer 2

You can try gson library and than use something like:

Gson gson = new Gson(); String jsonInString = gson.toJson(yourOrientObj);

Ref.: mkyong.com

Answer 3

I made an example to try your case:

@class: V_Notification

Property: description

Vertex v = graph.getVertex("#17:0");
Gson gson = new Gson();
String jsonInString = gson.toJson(v.getProperty("description").toString());
System.out.println("STAMPO = " + jsonInString);

This is my output:

PRINTED = "user_added_to_share_made_upload"

Hope it helps.

Regards.