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copied!<p>I don't know why the approach as mentioned in the question didn't work. I didn't make it work but walking through this <a href="http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/validation.html" rel="nofollow">document</a>, I found another approach that worked for me as per my requirements.</p> <p>I set the validator inside a method which was designated by the <code>@InitBinder</code> annotation.</p> <p>From <a href="http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/validation.html#validation-mvc-configuring" rel="nofollow">docs</a></p> <blockquote> <p>The Validator instance invoked when a @Valid method argument is encountered may be configured in two ways. First, you may call binder.setValidator(Validator) within a @Controller's @InitBinder callback. This allows you to configure a Validator instance per @Controller class:</p> </blockquote> <p>Specifically, in my requirements, the validation should only be performed while updating or inserting data into the database i.e when an associated submit button for those operations is pressed (there is a common button for both of these tasks (insert and update) in my application whose name is <code>btnSubmit</code>).</p> <p>The validation should be muted in any other case (for example, when the delete button is pressed). To meet this requirement, I have registered the validator as follows.</p> <pre><code>@InitBinder protected void initBinder(WebDataBinder binder, WebRequest webRequest) { if (webRequest.getParameter("btnSubmit") != null) { binder.setValidator(new TempValidator()); } else { binder.setValidator(null); } } </code></pre> <p>In this situation, the validator - <code>TempValidator</code> would only be set when the submit button whose name attribute is <code>btnSubmit</code> is clicked by the client.</p> <p>There is no need for xml configuration anywhere as well as auto-wiring.</p> <p>The exemplary controller class now looks like the following.</p> <pre><code>@Controller public final class TempController { @Autowired private TempService tempService; @InitBinder protected void initBinder(WebDataBinder binder, WebRequest webRequest) { if (webRequest.getParameter("btnSubmit") != null) { binder.setValidator(new TempValidator()); } else { binder.setValidator(null); } } //Removed the @Valid annotation before TempBean, since validation is unnecessary on page load. @RequestMapping(method = {RequestMethod.GET}, value = {"admin_side/Temp"}) public String showForm(@ModelAttribute("tempBean") TempBean tempBean, BindingResult error, Map model, HttpServletRequest request, HttpServletResponse response) { return "admin_side/Temp"; } @RequestMapping(method = {RequestMethod.POST}, value = {"admin_side/Temp"}) public String onSubmit(@ModelAttribute("tempBean") @Valid TempBean tempBean, BindingResult errors, Map model, HttpServletRequest request, HttpServletResponse response) { if (CustomizeValidation.isValid(errors, tempBean, TempBean.ValidationGroup.class, Default.class) && !errors.hasErrors()) { System.out.println("Validated"); } return "admin_side/Temp"; } } </code></pre> <p>The <code>WebRequest</code> paramenter in the <code>initBinder()</code> method is not meant for handling the entire Http request as obvious. It's just for using general purpose request metadata.</p> <p>Javadocs about <code>WebRequest</code>.</p> <blockquote> <p>Generic interface for a web request. Mainly intended for generic web request interceptors, giving them access to general request metadata, not for actual handling of the request.</p> </blockquote> <p>If there is something wrong that I might be following, then kindly clarify it or add another answer.</p>

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