Refactoring the Prototype
Step 3 of 6
PortletKeys manage important things like the portlet name or other repeatable, commonly used variables in one place. This way, if you need to change the portlet’s name, you can do it in one place, and then reference it in every class that needs it. Keys must be referenced first as a component property, and then as a class.
Follow these steps to create your application’s
guestbook-webmodule, open the
GuestbookPortletclass and update the component class metadata properties by adding one new property:
"javax.portlet.name=" + GuestbookPortletKeys.GUESTBOOK,
Note that you need the trailing comma if you’ve added the property to the middle of the list. If you’ve added it to the end of the last, leave it off (but add a trailing comma to the prior property!).
GuestbookPortlet. It now shows an error because you haven’t added the key to the class.
GuestbookPortletKeysand create a public, static, final String called
GUESTBOOKwith a value of
public static final String GUESTBOOK = "com_liferay_docs_guestbook_portlet_GuestbookPortlet";
Save the file.
GuestbookPortlet’s error has disappeared, and your application can be deployed again. Nice job!
Next, you’ll integrate your application with the new back-end you generated with Service Builder.