private <T, S extends M> ModelView<? extends T> toView(
ModelBinding<T> binding,
ModelRuleDescriptor sourceDescriptor,
Inputs inputs,
ModelRuleRegistrar modelRuleRegistrar,
Class<S> itemType) {
CollectionBuilder<S> builder =
new DefaultCollectionBuilder<S>(
binding.getPath(),
new Instantiator<S>(itemType, container),
sourceDescriptor,
inputs,
modelRuleRegistrar);
ModelType<CollectionBuilder<S>> viewType =
new ModelType.Builder<CollectionBuilder<S>>() {}.where(
new ModelType.Parameter<S>() {}, ModelType.of(itemType))
.build();
CollectionBuilderModelView<S> view =
new CollectionBuilderModelView<S>(viewType, builder, binding.getPath(), sourceDescriptor);
@SuppressWarnings("unchecked")
ModelView<T> cast = (ModelView<T>) view;
return cast;
}
public <T> ModelView<? extends T> asWritable(
ModelBinding<T> binding,
ModelRuleDescriptor sourceDescriptor,
Inputs inputs,
ModelRuleRegistrar modelRuleRegistrar,
C instance) {
ModelType<T> targetType = binding.getReference().getType();
if (canBeViewedAsWritable(targetType)) {
ModelType<?> targetItemType = targetType.getTypeVariables().get(0);
if (targetItemType.getRawClass().isAssignableFrom(itemType)) { // item type is super of base
return toView(binding, sourceDescriptor, inputs, modelRuleRegistrar, itemType);
} else { // item type is sub type
Class<? extends M> subType = targetItemType.getRawClass().asSubclass(itemType);
return toView(binding, sourceDescriptor, inputs, modelRuleRegistrar, subType);
}
} else {
return null;
}
}
