ServiceBuilder Selective update

[Corné Aussems, geändert vor 13 Jahren.]

Im used to having a selective update on my interface;
ie; only update the fields that are not NULL

I would like to re-use the ModelImpl as a TransferObject,
I know it is a horror to some, but i'm a lazy sob

Is it possible to implement something easier than this ?

public Product updateProduct(final Product updateOnProduct) throws SystemException {

		Product persistentProduct = productPersistence.fetchByPrimaryKey(updateOnProduct.getPrimaryKey());
// sadly this copies the null values over so i need my own copieer
		BeanPropertiesUtil.copyProperties(updateOnProduct,persistentProduct );

		persitentProduct .setModifiedDate(DateUtil.newDate());

		return productPersistence.update(persistentProduct, false);
}

[Pete van de Water, geändert vor 13 Jahren.]

You could pre-populate the DTO so that the values won't be null. Spring will then bind the additional values on top of it. Eg:

@ModelAttribute
Product getProduct(@RequestParam(value = "primaryKey") Long primaryKey){
return productPersistence.fetchByPrimaryKey(primaryKey);
}