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
> >>> >
> >>> >
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> >>>
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> >>> 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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> >>
> >
> >
>
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> 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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