There is a Default group in javax.validation.groups.Default, which represents the default Bean Validation group. Unless a list of groups is explicitly defined: constraints belong to the Default group validation applies to the Default group You could extends this group: public interface ValidatedOnCreationOnly extends Default {}
You can also use @RequestBody with MultiValueMap e.g. @RequestMapping(value=”/create”, method=RequestMethod.POST, consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE) public String createRole(@RequestBody MultiValueMap<String, String> formData){ // your code goes here } Now you can get parameter names and their values. MultiValueMap is in Spring utils package
After taking a look at SpEL specification and combined with @javaguy’s answer I came up with this: @Value(“${my.list.of.strings:}#{T(java.util.Collections).emptyList()}”) private List<String> myList;
In cdi, Providers are used to inject objects of narrower scope into a more broadly-scoped bean, e.g., if a session-scoped bean needs access to a request scoped object it injects a provider and then a method, which is running in a request, calls provider.get() to obtain a local variable reference to the appropriate request-scoped object. … Read more
Here’s my implementation (Spring OAuth2): @Controller public class OAuthController { @Autowired private TokenStore tokenStore; @RequestMapping(value = “/oauth/revoke-token”, method = RequestMethod.GET) @ResponseStatus(HttpStatus.OK) public void logout(HttpServletRequest request) { String authHeader = request.getHeader(“Authorization”); if (authHeader != null) { String tokenValue = authHeader.replace(“Bearer”, “”).trim(); OAuth2AccessToken accessToken = tokenStore.readAccessToken(tokenValue); tokenStore.removeAccessToken(accessToken); } } } For testing: curl -X GET -H “Authorization: … Read more
Ask yourself the question: “Will I need to reuse the server-side interface with a non-GWT front-end?” If the answer is “no, I’ll just have a GWT client”: You can use GWT-RPC, and take advantage of the fact that you can use your Java objects both on the server and the client-side. This can also make … Read more
Make sure that your Spring form mentions the modelAttribute=”<Model Name”. Example: @Controller @RequestMapping(“/greeting.html”) public class GreetingController { @ModelAttribute(“greeting”) public Greeting getGreetingObject() { return new Greeting(); } /** * GET * * */ @RequestMapping(method = RequestMethod.GET) public String handleRequest() { return “greeting”; } /** * POST * * */ @RequestMapping(method = RequestMethod.POST) public ModelAndView processSubmit(@ModelAttribute(“greeting”) Greeting … Read more
JSF 2.3+ If you’re already on JSF 2.3 or newer, and want to inject CDI-supported artifacts via e.g. @EJB, @PersistenceContext or @Inject, then simply add managed=true to the @FacesValidator annotation to make it CDI-managed. @FacesValidator(value=”emailExistValidator”, managed=true) JSF 2.2- If you’re not on JSF 2.3 or newer yet, then you basically need to make it a … Read more
We are talking about software architecture and as always when we are talking about software architecture there are a thousand ways of doing something and many opinions about what is the best way. But there is no best way, everything has advantages and disadvantages. Keep this in mind! Typically you have different layers: A persistence … Read more