JQPath query attribute in superclass

I have a couple of domain classes that inherit from BaseDomain class.

In this BaseDomain class, I have a field that is the public final name of the String;

The name value is set in the constructor.

public class BaseDomain {
    public final String name;
    public BaseDomain() {
    this.name = this.getClass().getCanonicalName();
    }
}

      

        
        
        
      

    

This BaseDomain has been extended with several classes

public class Trip extends BaseDomain {
    private int id;
    public Trip(int id){
        this.id = id;
    }

}

      

        
        
        
      

    

So far so good.

I want to get the value of the "name" field in the Trip a instance using JXPath, but I can't. I can access the "id" field, but not the "name" field.

JXPathContext jxPathContext = JXPathContext.newContext(trip);
jxPathContext.setLenient(true);
int id = (int)jxPathContext.getValue("/@id"); // This works. 
String name = (String)jxPathContext.getValue("/@name"); // This does not work. 

      

        
        
        
      

    

Is it possible to get the value "name" with this setting and JXPath?

There may be some syntax errors and / or other errors in the code. I hope you all understood and understood my question.

Any help or pointer is greatly appreciated.

First, I want to thank Kelly S. French for his quick replay. This made me realize that there is something else I must explain.

I want to use jxpath because I will end up doing a deeper search. For example: "Trip" can contain a list of places that also extend BaseDomain. Each location can contain a PointOfInterest list that extends BaseDomain.

Through reflection in another piece of code, I want to get a list of BaseDomains based on their type (class.getCanonicalName ())

Object tree is not xml based, it is pure POJO.

As far as I understood, there is no way to write a jxpath query to find a list of objects based on their type, class name, etc.

It is right? Does anyone know how to do this?

The easiest way out, even if ugly, is to have a field in the superclass that contains the class name. That's why I made this ugly solution.

Eventually I want to create a jxpath query that, based on the trip, returns an iterator from which there has ever been an object being an instance of BaseDomain at any depth and not depending on which branch in the object tree the node is located as long as I can get the class name for the object I'm looking for.

Does anyone know if it is possible to achieve this with a jxpath query?

Sample code, links to blogs, or other documentation are welcome and appreciated.

As before, I am very grateful for any help.