Question

Any one know how to bind one swing JComponent to two BeansBinding classes(Specially with Netbeans IDE)? Also how to bind a variable in JFrame to a beanbinding class’s property?

Answer 1

A) Hmm … still not sure what exactly you want to achieve: build a binding chain, maybe? Something like

bean.”name” <–> textField.”text” –> otherBean.logger

    BindingGroup context = new BindingGroup();
    context.addBinding(Bindings.createAutoBinding(UpdateStrategy.READ_WRITE,
            bean, BeanProperty.create("name"), 
            field, BeanProperty.create("text"))); 
    context.addBinding(Bindings.createAutoBinding(UpdateStrategy.READ,
            field, BeanProperty.create("text"), 
            otherBean, BeanProperty.create("logger"))); 

B) Beansbinding is all about binding properties not fields (aka: variables). So whatever you want to bind needs a getter and (maybe a setter, depends on your requirements) and must fire notification on change. Then do the binding just as always ..

public MyFrame extends JFrame {
    private int attempts;

    public int getAttempts() {
        return attempts;
    } 

    private void incrementAttempts() {
        int old = getAttempts();
        attempts++;
        firePropertyChange("attempts", old, getAttempts()); 
    }

    private void bind() {
    BindingGroup context = new BindingGroup();
    context.addBinding(Bindings.createAutoBinding(UpdateStrategy.READ,
            this, BeanProperty.create("attempts"), 
            label, BeanProperty.create("text"))); 

    }
}