*/
protected void addPostHook ( Object postHook ) throws Exception {
Interceptor interceptor = (Interceptor) APILocator.getContentletAPIntercepter();
//First we need to be sure we are not adding the same hook more than once
interceptor.delPostHookByClassName( postHook.getClass().getName() );
if ( postHooks == null ) {
postHooks = new ArrayList<String>();
}