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@Inject
private ProjectStage projectStage;

//...

boolean isDevProjectStage = ProjectStage.Development.equals(this.projectStage);

@Alternative
@ProjectStageActivated({ProjectStage.UnitTest.class, ProjectStage.Development.class})
public class DevServiceMockImpl implements Service
{
  //...
}

@ExpressionActivated("db==dev-db")
public class TestDataCreator
{
  //...
}

or

@ExpressionActivated("db!=prod-db;db==*")
public class TestDataCreator
{
  //...
}

@ExpressionActivated(value = "${environment.stage eq 'test'}", interpreter = CustomInterpreter.class)
public class TestDataCreator
{
  //...
}

public class MyBean
{
    @Inject
    private Logger logger;
}

public class MyBean
{
    @Inject
    @LoggerDetails(name = "AppLogger")
    private Logger logger;
}

@Inject
private BeanManager beanManager;

//or

BeanManager beanManager = BeanManagerProvider.getInstance().getBeanManager();

@ProjectStageActivated({Development.class, IntegrationTest.class})
public class SampleDataStartupObserver
{
    protected void createSampleData(@Observes StartupEvent startupEvent, UserRepository userRepository)
    {
        User user = new User("Demo", "User");
        userRepository.save(user);
    }
}

import org.apache.myfaces.extensions.cdi.core.api.resource.bundle.ResourceBundle;

//...
public class MyBean
{
    @Inject
    //@Jsf //optional to use the current locale
    @Bundle(MyBundle.class)
    private ResourceBundle resourceBundle;

    public String getMyValue()
    {
        return this.resourceBundle.getValue(MyBundle.MyKey.class);
    }
}

package mypackage.myconfig;

//@Bundle //optional in this case
//Bundle gets mapped to mypackage.myconfig.my_bundle.properties
public interface MyBundle
{
    //mapped to the resource-bundle key (by naming convention): my_key
    public class MyKey implements BundleKey, MyBundle {}

    //mapped to the resource-bundle key (manually): secondKey
    @Named("secondKey")
    public class MyKey2 extends BundleValue implements MyBundle {}
}

@Bundle(name = "mypackage.myconfig.mybundle")
public interface MyBundle
{
    //mapped to the resource-bundle key (by naming convention): my_value
    //@Named("myKey") //for mapping it to the resource-bundle key (manually): myKey
    public class MyValue extends BundleValue implements Messages {}
}

//...
public class MyBean
{
    @Inject
    private MyBundle.MyValue myValue;

    public String getMyValue()
    {
        return this.myValue.toString();
    }
}

CustomAnnotation annotation = DefaultAnnotation.of(CustomAnnotation.class);

@Target({TYPE})
@Retention(RUNTIME)
@Documented

@ViewMetaData
public @interface InfoPage
{
}

@Model
public class ManualNavigationBean
{
    @Inject
    private ViewNavigationHandler viewNavigationHandler;

    public void navigateToHelloMyFacesCodi(ActionEvent actionEvent)
    {
        this.viewNavigationHandler.navigateTo(DemoPages.HelloMyFacesCodi.class);
    }

    public void navigateToErrorView(ActionEvent actionEvent)
    {
        this.viewNavigationHandler.navigateTo(DefaultErrorView.class);
    }
}

@Model
public class ViewConfigNavigationObserver
{
    @Inject
    //@Jsf //just in case of a JSF application
    private MessageContext messageContext;

    protected void onViewConfigNavigation(@Observes PreViewConfigNavigateEvent navigateEvent)
    {
        if(/*...*/)
        {
            navigateEvent.navigateTo(DefaultErrorView.class);
        }

        this.messageContext.message()
                                .text("navigate from {oldViewId} to {newViewId} view.")
                                .namedArgument("oldViewId", navigateEvent.getFromView())
                                .namedArgument("newViewId", navigateEvent.getToView())
                           .add();
    }
}

@Page(navigation = REDIRECT)
public interface Pages extends ViewConfig
{
    @Secured(LoginAccessDecisionVoter.class)
    public interface Secure extends Pages
    {
        public @Page class InternalPage implements Secure {}
    }
}

@Page(navigation = REDIRECT)
public interface Pages extends ViewConfig
{
    @Secured(value = LoginAccessDecisionVoter.class, errorView = Login.class)
    public interface Secure extends Pages
    {
        public @Page class InternalPage implements Secure {}
    }
}

@RequestScoped
@Secured(LoginAccessDecisionVoter.class)
public class SecureBean
{
    //...
}

@ApplicationScoped
public class LoginAccessDecisionVoter extends AbstractAccessDecisionVoter
{
    private static final long serialVersionUID = -6332617547592896599L;

    @Inject
    private UserHolder userHolder;

    @Inject
    //@Jsf //only required in combination with the JSF module
    private MessageContext messageContext;

    @Override
    protected void checkPermission(InvocationContext invocationContext, Set<SecurityViolation> violations)
    {
        if(!this.userHolder.isLoggedIn())
        {
            violations.add(newSecurityViolation(this.messageContext.message().text("{msgAccessDenied}").toText()));
        }
    }
}

@Named
@Admin
public class MyBean implements Serializable
{
  //...
}

//...
@Stereotype
@Secured(RoleAccessDecisionVoter.class)
public @interface Admin
{
} 

@Named
@Admin(securityLevel=3)
public class MyBean implements Serializable
{
  //...
}

//...
@Stereotype
@Secured(RoleAccessDecisionVoter.class)
public @interface Admin
{
  int securityLevel();
}

@ApplicationScoped
public class RoleAccessDecisionVoter implements AccessDecisionVoter
{
    private static final long serialVersionUID = -8007511215776345835L;
    
    @Inject
    private AccessDecisionVoterContext voterContext;

    public Set<SecurityViolation> checkPermission(InvocationContext invocationContext)
    {
        Admin admin = voterContext.getMetaDataFor(Admin.class.getName(), Admin.class);
        int level = admin.securityLevel();
        //...
    }
}