What Would the Transfer Object Look Like If I Have a List of Objects

[Caroline Jen]

What would the "transfer object" look like If I have a
List of objects and each object has its properties? 
Do I have a HashSet in my transfer object?

To clarify my question, let me give an example.  
Say, I have a store and I sell music CDs.  Each CD has
composer, title, and price as its properties.  How do
I code the transfer object to pass data between J2EE
tiers?

In my JSF backing bean, I have java.util.List and I
use DataModel to display all CDs in tabulation:

import java.util.ArrayList;
import java.util.List;
import javax.faces.model.DataModel;
import javax.faces.model.ListDataModel;

public class CDManagerBean 
{
        private String title;
        private Float price;
        private String artist;

        private List cds = new ArrayList();
        private DataModel cdModel = new ListDataModel();
        
        {
                cdModel.setWrappedData(cds);
        }

                // getters and setters
                // addCD(), editCD(), and updateCD()
methods
}

I also have a CD java class:

public class CD implements java.io.Serializable
{

        private String title;
        private String artist;
        private float price;
        
        public CD(){}

                // getters and setters
}


       
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