How to convert arraylist of custom object in to json in javascript

Question

I have a (java.util.List) List returned to the jag. That should be printed as a json .

   var storeForum = Packages.org.wso2.carbon.forum.registry.RegistryForumManager;

   var forum = new storeForum();

   var start = request.getParameter('start');
   var count = request.getParameter('count');

   var array =forum.fetchForumTopics(start,count, tenantDomainsArr, -1234, user.username);

forum.fetchForumTopics method returns

    List<customOjbect>

How to print it as a json. Didn't find anything useful on net.

You'll have to decide what you want, JSON is a dataformat for strings, an object is a native javascript structure of data, they are in no way the same thing. — adeneo, May 01 '14 at 14:53
http://stackoverflow.com/questions/558518/how-can-i-serialise-an-object-to-json-in-javascript. Your question appears to be answered here — dops, May 01 '14 at 14:54

score 1 · Answer 1 · answered May 01 '14 at 14:55

1

i'm not quite sure what a jag is - but you can use JSON.stringify() to convert an array of pairs or values into a JSON object

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify

JSON.stringify(array)

answered May 01 '14 at 14:55

eskimomatt

195
9

This doesn't work. It only gives "{}" as the output even though returned list is not empty. – Asiri Liyana Arachchi May 01 '14 at 16:26

score 0 · Answer 2 · answered May 01 '14 at 15:40

0

Since this is a java object, can you try this conversion using a java module that can convert the respective Object to JSON?.. You may have to import that module to the .jag (jaggery) file.

answered May 01 '14 at 15:40

Malintha

419
5
13

That'll work.But I wonder if there's a way to do this conversion with out having to import any java module. – Asiri Liyana Arachchi May 01 '14 at 16:23

How to convert arraylist of custom object in to json in javascript

2 Answers2