Functions

[parivero]

I am trying to use a function and I'm not making it work.

This is the code I'm implementing:

Config

@Bean
    public ViewResolver getViewResolver(ResourceLoader resourceLoader) {
        MustacheViewResolver mustacheViewResolver = new MustacheViewResolver();
        mustacheViewResolver.setPrefix("/WEB-INF/views/");
        mustacheViewResolver.setSuffix(".html");
        mustacheViewResolver.setCache(false);
        mustacheViewResolver.setContentType("text/html;charset=utf-8");
        MustacheJTemplateFactory factory = new MustacheJTemplateFactory();
        factory.setResourceLoader(resourceLoader);
        mustacheViewResolver.setTemplateFactory(factory);
        return mustacheViewResolver;
    }

template

{{#upper}}{{name}}{{/upper}}

controller

model.addAttribute("name","pablo");
model.addAttribute("upper",new Object() {
            Callable<Function> upper = new Callable<Function>() {
                @Override
                public Function call() throws Exception {
                    return new Function() {
                        @Override
                        public Object apply(Object o) {
                            return o.toString().toUpperCase();
                        }
                    };
                }
            };
        });

and the result is pablo instead of PABLO.

Thanks in advance.