How do I reference children in a Java Xpath retrieve?
I’m a total beginner in Java and all of my past Java work is primarily done by reading carefully, trying to understand and get inspired to re-use similarly. So bear with me. To simplify context, let’s say we have Customers that have Orders and I want to retrieve all customers of which the most recent order was at least 6 months ago, or have no orders at all. Or better phrased: Retrieve all customers that have no order that was created in the past 6 months. How would I write that Xpath retrieve in Java? Due to unrelated reasons (in short: Dynamic XPaths), the retrieve has to be done in Java, extending the Java file we already use. I couldn’t find a reference in our java files using a 1-* reference, causing no inspiration for me to copy. Normally, for a 1-1 association, I could write something like this. XPath < Customer > xpath = XPath.create(context, Customer.class); xpath.subconstraint(Customer.MemberNames.Customer_Address, Address.entityName) .eq(Address.MemberNames.PostalCode, '1234AB') .close(); But since a customer can have multiple orders, it seems I cannot reach Orders from Customer. How do I reach Orders? In addition, I’m trying to get something similar as the Mendix Xpath Not function. Is that simply .not()?
as the Order is the owner of the association, you have to start from there and get your customers.
The xpath should then look something like this :