Hello,
I have the same problem, did you find a solution?
My parameter is an ArrayList.
Yaniv.
Stephane Grenier-2 wrote:
>
> Hi all,
>
> I'm trying to create a custom component and I've got it working when the
> input value is a String type parameter from my backend bean. However my
> problem is that it's not working when the parameter is anything but a
> String
> object, say a data model object. I've tried a number of options, and I
> know
> it's possible, but I can't seem to get it. I've even seen a post that said
> to look at the schedule tag, but I can't seem to isolate the right
> snippet.
> Therefore you're assistance would be immensely appreciated. So far here's
> what I have:
>
> public class AddressTag extends UIComponentTag
> {
> private String address;
>
> ... set/getAddress(String address);
>
> @Override
> protected void setProperties(UIComponent component)
> {
> /* you have to call the super class */
> super.setProperties(component);
> ((AddressComponent)component).setValue(address);
>
> FacesContext context = FacesContext.getCurrentInstance();
> Application application = context.getApplication();
> ValueBinding binding = application.createValueBinding(address);
> component.setValueBinding("value", binding);
> }
>
> ... // other methods.
> }
>
> The address component is really simple:
>
> public class AddressComponent extends UIInput
> {
> private String address;
>
> @Override
> public void encodeBegin(FacesContext context) throws IOException
> {
> ResponseWriter writer = context.getResponseWriter();
> writer.startElement("label", this);
> writer.write("test custom component: " + address);
> writer.endElement("label");
> writer.flush();
> }
>
> ... // other methods.
> }
>
> And in the JSP I have:
>
> <cpc:address value="#{backendBean.address}"/>
>
> Now when I try to change the backendBean.address property from String to
> an
> Address object (data model object), there are two issues.
>
> 1. In the AddressTag class the following line:
>
> ValueBinding binding = application.createValueBinding(address);
>
> Only seems to allow a String object, and not a generic Object.
>
> 2. Assuming I remove those lines of code, I get
> jsp.error.beans.property.conversion error.
>
> Now I've also tried to add the <deferred-value> to the tld definition (I
> have to admit I don't yet understand what this property does), but that
> hasn't helped.
>
> You're assistance is greatly appreciated as I've already wracked my brain
> enough on this issue! I'm just trying to send the data model object to the
> custom component because we're continuing to render it over and over and
> over on many screens in a special format.
>
> Regards,
> Steph
>
>
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