I'm having a weird navigation issue I'm not sure how to solve.
I have what is basically a product details page that looks pretty close to
the example
@Inject
private ProductDAO _dao;
private Product _product;
private long _productId;
public void setProductId(long productId) { _productId = productId; }
void onActivate(long productId)
{
_productId = productId;
_product = _dao.getById(_productId);
}
long onPassivate() { return _productId; }
In my product detail page I also include a grid of information that is
pulled from an additional source. For instance, if my detail page is
displaying information about a music album it would look like this.
Album: Name
Artist: Artist Name
Date Published: Date
Track Listing:
[Grid of tracks]
The problem I am having is that every time the grid has multiple pages worth
of data and I click on the other pages to view, it somehow loses the
productId context and displays a NullPointerException. How can I make sure
that the productId context is maintained? I have attempted to put a @Persist
annotation on the variable but it didn't seem to make a difference. Any help
on this would be great! Thanks.
Jean-Philippe Steinmetz
