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git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@6055 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/security/authentication/AuthenticationUtil.java

@@ -241,6 +241,14 @@ public abstract class AuthenticationUtil
         ContextHolder.setContext(null);
     }
 
+    /**
+     * Execute a unit of work as a given user.  The thread's authenticated user will be
+     * returned to its normal state after the call.
+     * 
+     * @param runAsWork     the unit of work to do
+     * @param uid           the user ID
+     * @return              Returns the work's return value
+     */
     public static <R> R runAs(RunAsWork<R> runAsWork, String uid)
     {
         String currentUser = AuthenticationUtil.getCurrentUserName();