public <T> boolean canBeViewedAsWritable(ModelType<T> targetType) {
if (targetType.getRawClass().equals(CollectionBuilder.class)) {
ModelType<?> targetItemType = targetType.getTypeVariables().get(0);
return targetItemType.getRawClass().isAssignableFrom(itemType)
|| itemType.isAssignableFrom(targetItemType.getRawClass());
} else {
return false;
}
}
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;
}
}
