[Example] Use implementations in examples

Use implementations of custom extensions in examples.
WTD-518.

example/builtins/src/ExampleDirective.js

@@ -8,9 +8,11 @@ define(
     function () {
         "use strict";
 
-        var HAS_EXTENSIONS = "A directive loaded these example extensions.",
+        var HAS_EXTENSIONS = "A directive loaded these message from " +
+                    "example extensions.",
             NO_EXTENSIONS = "A directive tried to load example extensions," +
-                    " but found none.";
+                    " but found none.",
+            MESSAGE = "I heard this from my partial constructor.";
 
         /**
          *
@@ -22,8 +24,14 @@ define(
                     HAS_EXTENSIONS : NO_EXTENSIONS;
 
             template += "<ul>"
-            examples.forEach(function (e) {
+            examples.forEach(function (E) {
-                template += "<li>" + e.text + "</li>";
+                template += "<li>";
+                if (typeof E === 'function') {
+                    template += (new E(MESSAGE)).getText();
+                } else {
+                    template += E.text;
+                }
+                template += "</li>";
             });
             template += "</ul>";
 

example/extensions/bundle.json

@@ -6,6 +6,10 @@
         "examples": [
             {
                 "text": "I came from example/extensions"
+            },
+            {
+                "implementation": "SomeExample.js",
+                "depends": [ "exampleService" ]
             }
         ]
     }

example/extensions/src/SomeExample.js

@@ -0,0 +1,31 @@
+/*global define,Promise*/
+
+/**
+ * Module defining SomeExample. Created by vwoeltje on 11/5/14.
+ */
+define(
+    [],
+    function () {
+        "use strict";
+
+        /**
+         *
+         * @constructor
+         */
+        function SomeExample(exampleService, message) {
+            return {
+                getText: function () {
+                    return [
+                        '"',
+                        exampleService.getMessage(),
+                        '" and "',
+                        message,
+                        '"'
+                    ].join("");
+                }
+            };
+        }
+
+        return SomeExample;
+    }
+);