Hi Karan,
On Oct 14, 2005, at 7:10 AM, Karan Malhi wrote:
Hi,
First of all, I am sorry, I could not contribute much in the past
two or
three weeks. Hopefully, I should be able to start contributing some
things
this weekend.
I had a question regarding queries.
I have two classes , Address and Customer. Customer has many Addresses
class Address{
private String city;
}
class Customer{
Set address = new HashSet(); //contains collection of Address objects
}
I want to find those customers , which belong to cities which are
contained
in a collection. For example, if i had a collection of String objects,
containing city values like PA, CA , LA, and I wanted to find
customers
belonging to one of those cities, then would the following work. if
this
doesnt work, then what would be the solution for this query .
Set allowed = new HashSet(); // allowed collection contains cities
(String)
allowed.add('ny');
allowed.add('pa');
query.setFilter("address.contains(add) && allowedCities.contains
(add.city
)");
query.declareParameter(Set allowedCities);
query.setImports("import java.util.*");
query.setVariable(Address add);
query.execute(allowed);
Yes, this is a proper JDOQL query.
Craig
--
Karan Malhi
