Visualforce Developer Guide
jNote: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.
Remote Methods and Inheritance
You can call remote actions on your Apex controller that are inherited methods. When
a @RemoteAction method is looked up or called, Visualforce inspects the page
controller’s inheritance hierarchy and finds @RemoteAction methods in the controller’s ancestor classes.
Here’s an example demonstrating this capability. The following Apex classes form a
three-tier inheritance
hierarchy:
1global with sharing class ChildRemoteController
2 extends ParentRemoteController { }
3global virtual with sharing class ParentRemoteController
4 extends GrandparentRemoteController { }
5
6global virtual with sharing class GrandparentRemoteController {
7 @RemoteAction
8 global static String sayHello(String helloTo) {
9 return 'Hello ' + helloTo + ' from the Grandparent.';
10 }
11}This Visualforce page simply calls
the sayHello remote
action.
1<apex:page controller="ChildRemoteController" >
2 <script type="text/javascript">
3 function sayHello(helloTo) {
4 ChildRemoteController.sayHello(helloTo, function(result, event){
5 if(event.status) {
6 document.getElementById("result").innerHTML = result;
7 }
8 });
9 }
10 </script>
11
12 <button onclick="sayHello('Jude');">Say Hello</button><br/>
13 <div id="result">[Results]</div>
14
15</apex:page>