That looks fine. I think the problem is more likely to be in the registering
of the PropertyEditor in the Spring layer (it only knows about your object
graph, and nothing at all about your database mappings). I have had a quick
peek in the code, and it looks as if you have not implemented the
getAsText() method for your editor?
Mike
On 10/17/07, George.Francis <[EMAIL PROTECTED]> wrote:
>
>
> Application.getCustomer() returns a Customer instance. The reason
> equals()
> is being passed a
> Long (I believe) is because I am mapping Application.customer to a
> Customer
> instance by it's id
> in the Customer database table, i.e:
>
> @OneToOne(cascade = CascadeType.ALL)
> @JoinColumn(name="customer_fk")
> public Customer getCustomer()
> {
> return customer;
> }
>
> where the customer_fk column is of type int8. Isn't this correct
> procedure?
>
>
> Mike Horwitz wrote:
> >
> > Looks like the Application.getCustomer() method is returning a Long? Is
> > this
> > possible? Spring MVC encourages the use of domain objects in the form,
> so
> > customers + Application.getCustomer() should both return Customer
> objects.
> >
> > Mike
> >
> > On 10/16/07, George.Francis <[EMAIL PROTECTED]> wrote:
> >>
> >>
> >> Do I have to change the equals() method too? Now I get the following
> on
> >> the
> >> ApplicationForm:
> >>
> >> [ismid] ERROR [http-8080-Processor25] OptionsTag.doStartTag(84) |
> >> java.lang.Long cannot be cast to com.ism.ismid.model.Customer
> >> java.lang.ClassCastException: java.lang.Long cannot be cast to
> >> com.ism.ismid.model.Customer
> >> at com.ism.ismid.model.Customer.equals(Customer.java:35)
> >> at
> >> org.springframework.util.ObjectUtils.nullSafeEquals(ObjectUtils.java
> :170)
> >> at
> >>
> >>
> org.springframework.web.servlet.tags.form.SelectedValueComparator.isSelected
> >> (SelectedValueComparator.java:90)
> >> at
> >> org.springframework.web.servlet.tags.form.OptionWriter.isSelected(
> >> OptionWriter.java:184)
> >> at
> >> org.springframework.web.servlet.tags.form.OptionWriter.renderOption(
> >> OptionWriter.java:172)
> >>
> >>
> >>
> >> George.Francis wrote:
> >> >
> >> > Would that be ApplicationFormController's initBinder method?
> >> > This is my setAsText method:
> >> >
> >> > public void setAsText(String text) throws
> >> IllegalArgumentException
> >> > {
> >> > Customer obj;
> >> > if (text == null || text.length() == 0) {
> >> > setValue(null);
> >> > } else {
> >> > obj = new Customer();
> >> > obj.setId(Long.parseLong(text));
> >> > setValue(obj);
> >> > }
> >> > }
> >> >
> >> >
> >> >
> >> > Mike Horwitz wrote:
> >> >>
> >> >> On 10/15/07, George.Francis <[EMAIL PROTECTED]> wrote:
> >> >>>
> >> >>>
> >> >>> OK, after reading this I assume I need to define a class
> >> >>> ApplicationBeanInfo
> >> >>> which extends SimpleBeanInfo, whose getPropertyDescriptors() method
> >> uses
> >> >>> a
> >> >>> class CustomerEditor (which I also have to write) which extends
> >> >>> PropertyEditor?
> >> >>
> >> >>
> >> >> Not quite. You only need to write a CustomerEditor (easiest way is
> by
> >> >> extending PropertyEditorSupport and overriding the getAsText() and
> >> >> setAsText() methods) which you register in your controller using the
> >> >> initBinder() method: http://tinyurl.com/2sutrm
> >> >>
> >> >> Mike
> >> >>
> >> >> mraible wrote:
> >> >>> >
> >> >>> > You need a PropertyEditor to translate the "id" that's coming for
> >> >>> > Customer to a real customer object from your database.
> >> >>> >
> >> >>> > http://www.springframework.org/docs/reference/validation.html
> >> >>> >
> >> >>> > Matt
> >> >>> >
> >> >>> > On 10/12/07, George.Francis <[EMAIL PROTECTED]> wrote:
> >> >>> >>
> >> >>> >> Hi, I have two entities in my Spring MVC app, 'Application' and
> >> >>> >> 'Customer'.
> >> >>> >> The Application edit form has a drop-down list of Customers so
> >> that
> >> >>> one
> >> >>> >> can
> >> >>> >> be associated with the Application. THis is done via the
> >> following
> >> >>> tags
> >> >>> >> in
> >> >>> >> the JSP;
> >> >>> >>
> >> >>> >> <form:select path="customer">
> >> >>> >> <form:options items="${customers}"
> itemValue="id"
> >> >>> >> itemLabel="name"/>
> >> >>> >> </form:select>
> >> >>> >>
> >> >>> >> When I submit the form I get a validation error:
> >> >>> >> "Failed to convert property value of type [java.lang.String] to
> >> >>> required
> >> >>> >> type [com.ism.ismid.model.Customer] for property customer;
> nested
> >> >>> >> exception
> >> >>> >> is java.lang.IllegalArgumentException: Cannot convert value of
> >> type
> >> >>> >> [java.lang.String] to required type [
> com.ism.ismid.model.Customer]
> >> >>> for
> >> >>> >> property customer: no matching editors or conversion strategy
> >> found"
> >> >>> >>
> >> >>> >> Can someone see why this is happening?
> >> >>> >>
> >> >>> >>
> >> >>> >> --
> >> >>> >> View this message in context:
> >> >>> >>
> >> >>>
> >>
> http://www.nabble.com/Problemn-associating-entities-via-form-tf4616135s2369.html#a13183354
> >> >>> >> Sent from the AppFuse - User mailing list archive at Nabble.com.
> >> >>> >>
> >> >>> >>
> >> ---------------------------------------------------------------------
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> >> >>> >>
> >> >>> >>
> >> >>> >
> >> >>> >
> >> >>> > --
> >> >>> > http://raibledesigns.com
> >> >>> >
> >> >>> >
> >> ---------------------------------------------------------------------
> >> >>> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> >> >>> > For additional commands, e-mail: [EMAIL PROTECTED]
> >> >>> >
> >> >>> >
> >> >>> >
> >> >>>
> >> >>> --
> >> >>> View this message in context:
> >> >>>
> >>
> http://www.nabble.com/Problemn-associating-entities-via-form-tf4616135s2369.html#a13214827
> >> >>> Sent from the AppFuse - User mailing list archive at Nabble.com.
> >> >>>
> >> >>>
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> >> >>>
> >> >>>
> >> >>
> >> >>
> >> >
> >> >
> >>
> >> --
> >> View this message in context:
> >>
> http://www.nabble.com/Problemn-associating-entities-via-form-tf4616135s2369.html#a13242743
> >> Sent from the AppFuse - User mailing list archive at Nabble.com.
> >>
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> >>
> >>
> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/Problemn-associating-entities-via-form-tf4616135s2369.html#a13254127
> Sent from the AppFuse - User mailing list archive at Nabble.com.
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