It might have to do with the way I contribute my Translator i.e.:
* @Contribute(TranslatorSource.class)*
* public static void provideTranslators(MappedConfiguration<Class,
Translator> configuration){*
* configuration.add(Postcode.class, new PostcodeTranslator());*
* }*
See how I instanciate the PostcodeTranslator...
I don't know how to get round this...
Can someone please help?
Regards,
Julien.
2011/10/16 Julien Martin <bal...@gmail.com>
> Hello,
> I have the following Translator implementation:
>
> package com.bignibou.web.services;
>
> import com.bignibou.domain.Postcode;
> import com.bignibou.service.BignibouService;
> import org.apache.tapestry5.Field;
> import org.apache.tapestry5.MarkupWriter;
> import org.apache.tapestry5.Translator;
> import org.apache.tapestry5.ValidationException;
> import org.apache.tapestry5.ioc.annotations.Inject;
> import org.apache.tapestry5.services.FormSupport;
>
>
>
>
> public class PostcodeTranslator implements Translator<Postcode> {
>
> @Inject
> BignibouService service;
>
> @Override
> public String getName() {
> return "postcodeTranslator";
> }
>
> @Override
> public String toClient(Postcode value) {
> return value.getPostcode();
> }
>
> @Override
> public Class<Postcode> getType() {
> return Postcode.class;
> }
>
> @Override
> public String getMessageKey() {
> return "postcodeTranslator-parse-exception";
> }
>
> @Override
> public Postcode parseClient(Field field, String clientValue, String
> message) throws ValidationException {
> try {
> String[] postcodesIds = clientValue.split(",");
> int postcodeId = Integer.parseInt(postcodesIds[0]);
> return service.loadPostcodeById(postcodeId);*//NULL POINTER
> EXCEPTION HERE!!!*
> } catch (RuntimeException e) {
> e.printStackTrace();
> throw new ValidationException(message);
> }
> }
>
> @Override
> public void render(Field field, String message, MarkupWriter writer,
> FormSupport formSupport) {
>
> }
> }
>
> Unfortunately it seems that my service is not properly injected by @Inject
> and I get a NPE when I tried to use my service variable.
>
> Note that this does not occur with a ValueEncoder implementation that I use
> elsewhere in the application...
>
> Can anyone help please?
>
> Regards,
>
> Julien.
>
