Optional-Required

@Model(adaptables = Resource.class, defaultInjectionStrategy = DefaultInjectionStrategy.OPTIONAL)
public class ContactUsModel {

	private String mailAddress;

	private String phoneNumber;

	@Inject
	@Required
	protected String title;

	@Inject
	protected String officeCode;

	@PostConstruct
	protected void init() {
		// Business logic to transform the Injected values and assign to bean Variables
		// Example: Resolve mailAddress/phoneNumber applicable for the user's region, based on officeCode
	}

	public String getMailAddress(){
		return mailAddress;
	}

	public String getPhoneNumber(){
		return phoneNumber;
	}
}