ModelAttribute caching?

[FireEnigmaX]

Hi Guys,

I'm new to the Spring MVC side of things and I'm currently trying to learn how to develop a portlet (hosted within liferay). So far everything seems to work - but I have one snag which I'm stuck on, and would be grateful if someone could shed some light on it for me please?...

basically, I have a portlet page which displays a "search" form - when the user completes the form and searches - I return a list of "cases" the user can select from - However, if they then go back to the search screen and change their search criteria - the new results are returned BUT so are the previous search results (this list gets added to continually)...

My (untrained) eye is telling me that I need to reset the contents of the Model attribute to null or remove it before re-populating it with the new data - but I'm not sure what way I should do this (hence my call for help!)

My code is below (apologies if it's badly written but I am still only learning as I go - so any improvement comments would be great also)

package com.test.portlets.controller;

...imports removed to shorten code...


@Controller(value="searchCaseController")
@RequestMapping(value = "VIEW")
public class CaseSearchController {
	@Autowired
	@Qualifier("myCaseServiceImpl")
	private CaseService caseService;
	
	List<Case> caseSearchResults;
	private Logger logger = Logger.getLogger(CaseSearchController.class);
	
	public void setCaseService(CaseService caseService) {
		this.caseService = caseService;
	}

	@ModelAttribute("caseSearch")
	public CaseSearch getCommandObject() {
		logger.info("Creating Case command object");
		return new CaseSearch();
	}

	@RenderMapping(params = "myaction=searchCase")
	public String showAddCaseForm(RenderResponse response) {
		return "caseSearch";
	}

	@ActionMapping(params = "myaction=searchCase")
	public void searchCase(@ModelAttribute CaseSearch aCaseSearch,
			BindingResult bindingResult, ActionResponse response, Model model) {

		logger.info("Inside searchCase action method");
		if (!bindingResult.hasErrors()) {		
			String caseStatus = aCaseSearch.getStatus();			
			logger.info("About to get cases with [" + "caseRef: "+ aCaseSearch.getcaseRef() + ", Status: " + caseStatus + ", Limit: 20]");
			caseSearchResults = caseService.getCases(aCaseSearch.getcaseRef(),caseStatus , 20);			
			
			model.addAttribute("caseSearchResults", caseSearchResults);			
			response.setRenderParameter("myaction", "searchCase");			
		} else {
			response.setRenderParameter("myaction", "searchCase");
		}
	}
		
	@ModelAttribute("caseStatus")
		public Map<String, String> populateCaseStatusList(){
			Map<String, String> status = new LinkedHashMap<String, String>();
			status.put("Open", "Open");
			status.put("Closed", "Closed");			
			return status;	
	}	
}

Any help would be great..
Thanks

[audiobrian]

I'm having the same problem. Any news??
Thanks!