Wicket - Reusable panels with java-subclasses

Question

1. I have a java class:

    public Task {

        private int id;
        private Company sender;
        private Company receiver;

        //Getter and Setter
        ...
    }

As you can see, I have 2 other custom classes in the task class. And a company has for example Adress and Directory (see screenshot below).

2. Now I have a form page with 2 sections (sender & receiver) representing a company. I don't want to make 2 seperate markups and java code for those 2 sections. Any way to avoid this duplication?

Answer 1

You could create a CompanyPanel which takes a IModel<Company>. You could use a PropertyModel on your task class to get one. PropertyModel sender = new PropertyModel(myTask, "sender"). The panel then can have two TextFields for which you can use a CompoundPropertyModel on the IModel that is passed.

Reuse this panel twice on your form.

On the CompanyPanel

public class CompanyPanel extends Panel
{
    public CompanyPanel(String id, IModel<Company> model)
    {
        super(id, new CompoundPropertyModel(model));
        add( new TextField("address"));
        add( new TextField("directory"));
    }
}

Lookup the CompoundPropertyModel in the docs. It is really useful.