Hi
Can you share the page/component where you are using this annotation. May be
you are not initializing the list that you are
annotating.
I have a similar worker and it works perfectly.
regards
Taha
On Fri, Feb 25, 2011 at 10:23 PM, Tibo23 <thibault.malbra...@gmail.com>wrote:
>
> Hello all,
>
> Here is my Tapestry 5.2 code for InjectSelectionModelWorker.
> Its aim is to add these 2 methods
>
> public GenericSelectionModel<Menu> getEntitiesSelectionModel () {
> return (new GenericSelectionModel<Menu>(getEntities (),
> "label",
> _access));
> }
>
> public GenericValueEncoder<Menu> getEntitiesValueEncoder () {
> return (new GenericValueEncoder<Menu>(getEntities (), "id",
> _access));
> }
>
> thanks to the annotation
> @InjectSelectionModel(fieldId = "id", fieldLabel = "label")
>
> The problem is that lList is null.
>
>
>
> public class InjectSelectionModelWorker implements
> ComponentClassTransformWorker {
>
> private PropertyAccess mPropertyAccess;
>
> public InjectSelectionModelWorker (PropertyAccess pPropertyAccess) {
> mPropertyAccess = pPropertyAccess;
> }
>
> public void transform (ClassTransformation pClassTransformation,
> MutableComponentModel pMutableComponentModel) {
> for (TransformField lTransformField :
> matchInjectSelectionModelFields
> (pClassTransformation)) {
> addCodeMethodsForInjectSelectionModelField
> (pClassTransformation,
> pMutableComponentModel, lTransformField);
> }
> }
>
> private void addCodeMethodsForInjectSelectionModelField
> (ClassTransformation pClassTransformation, MutableComponentModel
> pMutableComponentModel, TransformField pTransformField) {
> InjectSelectionModel lAnnotation =
> pTransformField.getAnnotation
> (InjectSelectionModel.class);
> String lInjectSelectionModelFieldName =
> InternalUtils.stripMemberName
> (pTransformField.getName ());
> String lInjectSelectionModelFieldId = lAnnotation.fieldId
> ();
> String lInjectSelectionModelFieldLabel =
> lAnnotation.fieldLabel ();
> addGetValueEncoderMethod (pClassTransformation,
> pTransformField,
> lInjectSelectionModelFieldName, lInjectSelectionModelFieldId);
> addGetSelectionModelMethod (pClassTransformation,
> pTransformField,
> lInjectSelectionModelFieldName, lInjectSelectionModelFieldLabel);
> }
>
> private void addGetValueEncoderMethod (ClassTransformation
> pClassTransformation, TransformField pTransformField, String
> pInjectSelectionModelFieldName, final String pInjectSelectionModelFieldId)
> {
> String lMethodName = "get" + InternalUtils.capitalize
> (InternalUtils.stripMemberName (pInjectSelectionModelFieldName)) +
> "ValueEncoder";
> TransformMethodSignature lTransformMethodSignature = new
> TransformMethodSignature (Modifier.PUBLIC,
> (GenericValueEncoder.class).getName (), lMethodName, null, null);
> ensureNotOverride (pClassTransformation,
> lTransformMethodSignature);
> final FieldAccess lFieldAccess = pTransformField.getAccess
> ();
> pClassTransformation.getOrCreateMethod
> (lTransformMethodSignature).addAdvice (new ComponentMethodAdvice () {
> public void advise (ComponentMethodInvocation
> lComponentMethodInvocation)
> {
> Object lList = lFieldAccess.read
> (lComponentMethodInvocation.getInstance
> ());
>
> System.out.println
> ("*******************************" + lList);
>
> lComponentMethodInvocation.overrideResult
> (new GenericValueEncoder
> ((List)lList, pInjectSelectionModelFieldId, mPropertyAccess));
> }
> });
> }
>
> }
>
> Thanks a lot for your help.
>
> Regards.
>
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