# Netbeans 6.1rc1 - nice, indirect support for Eclipse / Netbeans RCP DataBinding (for the model layer)

Proprietary Eclipse
RCP as well as JSR-295 (Beans Binding) databinding frameworks require the
realization of PropertyChangeSupport in the "model" entities.
Otherwise changes in the JPA-layer wouldn't be automatically propagated to the
UI.

Netbeans 6.1rc1 is
able to generate the properties,  the
PropertyChangeSupport (listeners) as well as the accessors for you. You only
need to enter the key-combination "Alt+Insert" and choose the
"Add Property" option.  In the
popup select the option "Bound" - this will activate the generation
of the PropertyChangeSupport. 

 

For the generation
of the following code (except the annotations and the class declaration) I had
only to execute the wizard twice. Onces for the "name" and second
time for the "description" attribute.

 

@Entity

public class Entity
{

    

    @Id

    protected String name;

    protected String description;

    

    private PropertyChangeSupport
propertyChangeSupport = new PropertyChangeSupport();;

    

    public static final String PROP_DESCRIPTION
= "description";

    public static final String PROP_NAME =
"name";

    

    public String getDescription() {

        return description;

    }

 

    public void setDescription(String
description) {

        String oldDescription = description;

        this.description = description;

       
propertyChangeSupport.firePropertyChange(PROP_DESCRIPTION,
oldDescription, description);

    }

    public String getName() {

        return name;

    }

 

    public void setName(String name) {

        String oldName = name;

        this.name = name;

       
propertyChangeSupport.firePropertyChange(PROP_NAME, oldName, name);

    }

}

 

Of course Netbeans
6.1RC1 is able to generate the whole code for you from the database with UI,
binding and persistence. To try this, just use in the new project wizard the
option "Desktop Application -> Database Application" and choose an
existing table from the database.