fire a callback when a job configuration is updated.

core/src/main/java/hudson/model/Job.java

@@ -35,6 +35,7 @@ import hudson.model.Descriptor.FormException;
 import hudson.model.Fingerprint.Range;
 import hudson.model.Fingerprint.RangeSet;
 import hudson.model.PermalinkProjectAction.Permalink;
+import hudson.model.listeners.ItemListener;
 import hudson.search.QuickSilver;
 import hudson.search.SearchIndex;
 import hudson.search.SearchIndexBuilder;
@@ -989,6 +990,7 @@ public abstract class Job<JobT extends Job<JobT, RunT>, RunT extends Run<JobT, R
             submit(req, rsp);
 
             save();
+            ItemListener.fireOnUpdated(this);
 
             String newName = req.getParameter("name");
             final ProjectNamingStrategy namingStrategy = Jenkins.getInstance().getProjectNamingStrategy();

core/src/main/java/hudson/model/listeners/ItemListener.java

@@ -94,6 +94,14 @@ public class ItemListener implements ExtensionPoint {
     public void onRenamed(Item item, String oldName, String newName) {
     }
 
+    /**
+     * Called after a job has its configuration updated.
+     *
+     * @since 1.460
+     */
+    public void onUpdated(Item item) {
+    }
+
     /**
      * @since 1.446
      *      Called at the begenning of the orderly shutdown sequence to
@@ -128,4 +136,9 @@ public class ItemListener implements ExtensionPoint {
         for (ItemListener l : all())
             l.onCreated(item);
     }
+
+    public static void fireOnUpdated(Item item) {
+        for (ItemListener l : all())
+            l.onUpdated(item);
+    }
 }