Hey All,

Following a guide online I found how to make a class that will query for data and get the results to JSON for me, it's very cool. But I do not understand how it works. It's basically laid out like this

public class getJsonEvents { public JsonObject json {get;set;} /** invoked on an Ajax request */ public void getEvents() { //Code to build json string } // Returns the JSON result string public String getResult() {

  string jsonString = json.ValuetoString();

return jsonString; } }

 The first method is void, and the 2nd returns the string. The visual force page that calls and uses it successfully looks like this.

<apex:page controller="getJsonEvents" action="{!getEvents}" contentType="application/x-JavaScript; charset=utf-8" showHeader="false" standardStylesheets="false" sidebar="false"> {!result} </apex:page>

 So it has the class set as it's controller, and it calls getEvents. Makes sense so far, except that it never calls getResult().

Nowhere is getResult invoked that I can find, yet the results get printed. More confusing is that this {!result} variable comes out of seemingly nowhere. I never created it, I never named it, but somehow it's there. I guess that is the default name of the return contents of the controller?

When uses this way does all code in a class just run sequentially until it hits a return statment or what? Also, how can I test this?I tried using code like this

//Create page reference PageReference opsCalendar = Page.OpsCalendar; //Pass start and end timestamps in url opsCalendar.getParameters().put('start','1262332800'); opsCalendar.getParameters().put('end','1263178646'); //initiate page reference Test.setCurrentPageReference(opsCalendar); //create instance of the class getJsonEvents eventsCtlr = new getJsonEvents(); //This fails because getEvents returns null; can't assign that to string myRunResult = eventsCtlr.getEvents(); //log the results System.Debug('get JSON Events result'+myRunResult );

 but it doesn't work, as i end up trying to assing the results of a null method/function to a string. What do I do?

Any help is appreciated. I know these are dumb questions, but at least I'm learning :P Thanks again.