Example.java

Notification notification = new Notification();
notification.setPath("src/main/resources/diagram.dmn"); 
notification.setMessage("The message I want to inform"); 
notifications.setType(NotificationType.PROBLEM);
notification.setSeverity(NotificationSeverity.ERROR);

this.notificationsApi.createNotification(notification);

Inject.java

import org.appformer.kogito.bridge.client.notifications.NotificationsApi;

public class MyEditor{

  private NotificationsApi notificationsApi;

  @Inject
  public MyEditor(NotificationsApi notificationsApi){
    this.notificationsApi = notificationsApi;
  }
}

ListOfNotifications.java

String path = "src/main/resources/diagram.dmn"; 
this.notificationsApi.setNotifications(path,notifications);

Notification.ts

export interface Notification {
  path: string;
  severity: NotificationSeverity;
  message: string;
  type: NotificationType;
}

NotificationsApi.ts

export interface NotificationsApi {
  createNotification(notification: Notification): void;
  setNotifications(path: string, notifications: Notification[]): void;
  removeNotifications(path: string): void;
}

Types.ts

export type NotificationSeverity = "INFO" | "WARNING" | "ERROR" | "SUCCESS" | "HINT";
export type NotificationType = "PROBLEM" | "ALERT";

Validate.java

import org.uberfire.lifecycle.Validate;

...

@Validate
 public Promise validate() { return Promise.resolve(listOfNotifications) }