I solved this problem and I figure that nabble might want to record the end
reason for the bug.
Another method entirely, elsewhere on ProductDetailAction, had a
@Transactional annotation. It didn't need one -- I was using injected
transaction management and the OpenEntityManagerInViewFilter. Why the error
message below was generated, instead of "hey dummy, don't use @Transactional
in this context," is beyond me, but at least it's fixed.
jk
On Wed, Apr 30, 2008 at 3:47 PM, Jim Kiley <[EMAIL PROTECTED]> wrote:
> Hi folks,
>
> I've run into a problem with Struts 2 validation annotations.
>
> In short -- I have a VisitorFieldValidator on an action POJO named
> ProductDetailAction. I have RequiredFieldValidator and
> RequiredStringValidator on one field within the "visited" object.
>
> Now -- ProductDetailAction did not (originally) inherit from
> ActionSupport. I could see validation errors cropping up in my log, but my
> save() method was still executing, because , as I understand it, without
> ActionSupport (or ValidationAware) there was no way for Struts to redirect
> my action back to my input() method when it found a validation error.
>
> If I change the hierarchy so that ProductDetailAction DOES inherit,
> indirectly, from ActionSupport, I can't even get to my input() method -- my
> productDetail JSP doesn't render. Instead I get the following exception:
>
> java.lang.IllegalArgumentException: The input() is not defined in action
> class $Proxy99
> at
> com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:412)
> at
> com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:267)
> at
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:229)
> at
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:88)
> (...)
>
> I get the same exception if I simply implement ValidationAware in the same
> way that ActionSupport does.
>
> I'm including relevant snippets of ProductDetailAction, Product, and
> struts.xml below. Does anyone have any insight as to why this might be
> happening? I'm stumped, and so are my coworkers. Thanks.
>
> Jim
>
> -----
> ProductDetailAction.java
> -----
> @Validation
> public class ProductDetailAction extends FormularyDetailAction { // note:
> FormularyDetailAction extends ActionSupport
> // snippery
>
> @Override
> @SkipValidation
> public String input() throws Exception {
> if(id==null || id < 1) {
> this.product = new Product();
> } else {
> this.product = formularyBso.fetchProduct(this.id);
> }
> return Action.INPUT;
> }
>
> @VisitorFieldValidator(message="")
> public Product getProduct() {
> return product;
> }
> // snippery
> }
> -----
> Product.java
> -----
> @Entity
> @Table(name="myrespironics.p_product_versions")
> @Validation
> public class Product extends FormularyProduct {
> //snip
> @RequiredFieldValidator(message="Please enter a value.")
> @RequiredStringValidator(message="Please enter a value.")
> public String getName() {
> return name;
> }
> //snip
> }
> -----
> struts.xml
> -----
> <struts>
> <package name="user" extends="struts-default">
> <interceptors>
> <interceptor-stack name="myInterceptors">
> <interceptor-ref name="exception"/>
> <interceptor-ref name="alias"/>
> <interceptor-ref name="params"/>
> <interceptor-ref name="servletConfig"/>
> <interceptor-ref name="prepare" />
> <interceptor-ref name="i18n"/>
> <interceptor-ref name="chain"/>
> <interceptor-ref name="modelDriven"/>
> <interceptor-ref name="fileUpload"/>
> <interceptor-ref name="checkbox"/>
> <interceptor-ref name="staticParams"/>
> <interceptor-ref name="params"/>
> <interceptor-ref name="conversionError"/>
> <interceptor-ref name="validation">
> <param name="excludeMethods">input,back,cancel</param>
> </interceptor-ref>
> <interceptor-ref name="workflow">
> <param name="excludeMethods">input,back,cancel</param>
> </interceptor-ref>
> </interceptor-stack>
> </interceptors>
>
> <default-interceptor-ref name="myInterceptors"/>
> <global-results>
> <result name="error">/error.jsp</result>
> </global-results>
>
> <action name="productDetail" class="productDetailAction"
> method="input">
> <result name="success"
> type="redirect-action">productList</result>
> <result
> name="input">/WEB-INF/secure/formulary/productDetail.jsp</result>
> <result name="success-subcategory" type="redirect-action">
> <param name="actionName">subcategoryDetail</param>
> <param name="parse">true</param>
> <param name="id">${subcategoryId}</param>
> </result>
> </action>
>
> </package>
> </struts>
> --
> Jim Kiley
> Technical Consultant | Summa
> [p] 412.258.3346 [m] 412.445.1729
> http://www.summa-tech.com
--
Jim Kiley
Technical Consultant | Summa
[p] 412.258.3346 [m] 412.445.1729
http://www.summa-tech.com
