AbstractWizardFormController does not call referenceData

[lnader]

I have a controller that extends AbstractWizardFormController and I have implemented the following methods. But my referenceData method does not get invoked. Shouldn't it be invoked by the showForm() in superclass?

protected Object formBackingObject(HttpServletRequest request) throws Exception
{
long parentId = RequestUtils.getRequiredLongParameter(request, "parentId");
TranDefGroup tranDefGroup = new TranDefGroup();
tranDefGroup.setParentId(parentId);
return tranDefGroup;
}

protected Map referenceData(HttpServletRequest arg0) throws Exception
{
Map model = new HashMap();
ArrayList tranList = configurationService.getTranList();
model.put("tranList", tranList);
return model;
}

[springframework@lordbrook]

Lili,

You are definately correct that this should work. If not solved, could you post the entire controller class?

-mc

[gmatthews]

You're not overriding a framework method.

You need to match the signature of any of the protected/public referenceData methods, of which there are none that just take a request object.

If you're using java 5, you can add the @Override annotation above the method signature and the compiler will check that the method does actually exist in some base class up the hierarchy.

[tikki]

gmatthews,

what did you mean with
"You need to match the signature of any of the protected/public referenceData methods, of which there are none that just take a request object."???

I've got the same problem. I'm using an AbstractWizardFormController and my referenceData() -method seems to be ignored. The same code works in a SimpleFormController. I have Java 1.4.2_05.

class OperationAddController extends AbstractWizardFormController {

    private OperationService operationService;
    private WorkflowService workflowService;
    
    public void afterPropertiesSet() throws Exception {
        if (this.operationService == null)
            throw new IllegalArgumentException("An OperationService is required");
        if (this.workflowService == null)
            throw new IllegalArgumentException("A WorkflowService is required");
    }

    protected void processFinish(
            ActionRequest request, ActionResponse response,
            Object command, BindException errors)
    		throws Exception {
		
    	operationService.addOperation((Operation)command);
		response.setRenderParameter("action","allOperations");
    }

    protected void processCancel(
            ActionRequest request, ActionResponse response,
            Object command, BindException errors)
            throws Exception {
		response.setRenderParameter("action","allOperations");
    }

    protected void validatePage(
            Object command, Errors errors, int page, boolean finish) {
        if (finish) {
            this.getValidator().validate(command, errors);
            return;
        }
		Operation operation = (Operation)command;
		OperationValidator operationValidator = (OperationValidator)getValidator();
		switch (page) {
			case 0: operationValidator.validateName(operation, errors);	break;
		}
    }

    protected Map referenceData(PortletRequest request)throws Exception {
    	Map retval = new HashMap();
    	retval.put("workflows", workflowService.getAllWorkflows());
    	return retval;
	}
    
    protected Object formBackingObject(PortletRequest request)throws Exception {

    	Operation o;
    	o = new Operation();
	
    	return o;
    }
	
    
    protected void initBinder(PortletRequest request, PortletRequestDataBinder binder)
			throws Exception {
    	NumberFormat nf = NumberFormat.getInstance(request.getLocale());
        binder.registerCustomEditor(java.lang.Integer.class,
                new CustomNumberEditor(java.lang.Integer.class, nf, true));
        binder.registerCustomEditor(Workflow.class, new WorkflowSupport());
		   
        binder.setAllowedFields(new String[] {"name","description","critical"});
    }
    
  
	protected ModelAndView renderInvalidSubmit(RenderRequest request, RenderResponse response)
			throws Exception {
	    return null;
	}

	protected void handleInvalidSubmit(ActionRequest request, ActionResponse response)
			throws Exception {
	    response.setRenderParameter("action","allOperations");
	}

	public void setOperationService(OperationService operationService) {
	    this.operationService = operationService;
	}
	public void setWorkflowService(WorkflowService workflowService) {
	    this.workflowService = workflowService;
	}

}

And this is the jsp-code:

<form method="post" action="<portlet:actionURL>
<portlet:param name="action" value="addOperation"/>
<portlet:param name="_page" value="${page}"/>
<portlet:param name="workflowId" value="<%=wfId %>"/>
</portlet:actionURL>">
	<table border="0" cellpadding="4">
		<tr>
		
		</tr>
		<tr>
			<c:choose> 
				<c:when test="${page == 0}" > 
					<th>Name</th>
					<td>
					<spring:bind path="operation.name">
        				<input type="text" name="${status.expression}" value="${status.value}"/>
         				<span>${status.errorMessage}</span>
    				</spring:bind>
					</td>
				</c:when> 
				<c:when test="${page == 1}" > 
					<th>Workflow:</th>
					<td><spring:bind path="operation.workflow">
  						<select name="<c:out value="${status.expression}"/>" size="1">
    						<option value="0">--- bitte wählen ---</option>
    						<c:forEach var="workflow" items="${workflows}">
      							<option value='<c:out value="${workflow.id}"/>' <c:if test="${workflow.id == status.value}">selected</c:if>>
        						<c:out value="${workflow.name}"/>
      							</option>
    						</c:forEach>
  						</select>
    				</spring:bind>
					</td>
					
				</c:when> 
			</c:choose>  
		<tr>
			<th colspan="2">
				<input type="submit" name="_target${nextPage}" ${empty nextPage ? "disabled" : ""} value="Next"/>
				<input type="submit" name="_finish" value="Finish"/>
				<input type="submit" name="_target${prevPage}" ${empty prevPage ? "disabled" : ""} value="Previous"/>
				<input type="submit" name="_cancel" value="Cancel"/>
			</th>
		</tr>
	</table>
</form>

Thanks for your help!

[tikki]

In my referenceData method I forgot to use the parameter "int page"!

Here ist the correct code, now it works

 protected Map referenceData(PortletRequest request, int page)throws Exception {
			Map retval = new HashMap();
			
			switch(page){
				case 0: retval.put("workflows", workflowService.getAllWorkflows()); break;
			}
				
			return retval;
			}

[jkost]

I was wondering where you set you ${nextPage}, ${previousPage} in the controller...