How To Index With Multiple Priorities

[Mehmet Başal]

Hello,

I have different lists that consist of products. And each product in list
has a priority that specific to list. For example;

List A:
product_id - priority
1                      10
2                       25
3                       30


List B:
product_id - priority
3                      10
4                       25
5                       30

So question is how should i index those list with lucene to make a query
like this:
get products of B list and sort them with priorities that they have in B.

Thanks in advance.