Examples of org.rssowl.core.persist.event.NewsEvent

org.rssowl.core.persist.event.NewsEvent

An Event-Object being used to notify Listeners, whenever the type INews was added, updated or deleted in the persistance layer.
In order to retrieve the Model-Object that is affected on the Event, use the resolve() Method of the ModelReference stored in this Event. @author bpasero


    NewsListener newsListener = new NewsAdapter() {
      @Override
      public void entitiesUpdated(Set<NewsEvent> events) {
        assertEquals(1, events.size());
        NewsEvent event = events.iterator().next();
        assertEquals(true, event.getEntity().equals(savedNews));
        INews oldNews = event.getOldNews();
        assertEquals(State.UNREAD, oldNews.getState());
        assertEquals(State.UNREAD, event.getEntity().getState());
        assertEquals(category.getName(), oldNews.getCategories().get(0).getName());
        IAttachment oldAttachment = oldNews.getAttachments().get(0);
        assertEquals(attachment.getLink(), oldAttachment.getLink());
        assertNull(oldAttachment.getNews());
      }
    };
    DynamicDAO.addEntityListener(INews.class, newsListener);
    try {
      DynamicDAO.saveAll(newsList);
    } finally {
      DynamicDAO.removeEntityListener(INews.class, newsListener);
    }
    newsListener = new NewsAdapter() {
      @Override
      public void entitiesUpdated(Set<NewsEvent> events) {
        assertEquals(1, events.size());
        NewsEvent event = events.iterator().next();
        assertEquals(savedNews.getId().longValue(), event.getEntity().getId());
        assertEquals(State.UNREAD, event.getOldNews().getState());
        assertEquals(State.UPDATED, event.getEntity().getState());
      }
    };
    DynamicDAO.addEntityListener(INews.class, newsListener);
    newsList.iterator().next().setState(State.UPDATED);
    try {

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    INewsDAO newsDao = DynamicDAO.getDAO(INewsDAO.class);
    for (int i = 0, c = descriptionUpdatedIds.size(); i < c; ++i) {
      long newsId = descriptionUpdatedIds.get(i);
      INews news = newsDao.load(newsId);
      INews oldNews = DBHelper.peekPersistedNews(fDb, news);
      EventsMap.getInstance().putUpdateEvent(new NewsEvent(oldNews, news, false));
    }
  }

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    NewsListener newsListener = new NewsAdapter() {
      @Override
      public void entitiesUpdated(Set<NewsEvent> events) {
        assertEquals(1, events.size());
        NewsEvent event = events.iterator().next();
        assertEquals(true, event.getEntity().equals(savedNews));
        assertEquals(State.UNREAD, event.getOldNews().getState());
        assertEquals(State.UNREAD, event.getEntity().getState());
      }
    };
    DynamicDAO.addEntityListener(INews.class, newsListener);
    try {
      feed = DynamicDAO.save(feed);
    } finally {
      DynamicDAO.removeEntityListener(INews.class, newsListener);
    }
    newsListener = new NewsAdapter() {
      @Override
      public void entitiesUpdated(Set<NewsEvent> events) {
        assertEquals(1, events.size());
        NewsEvent event = events.iterator().next();
        assertEquals(savedNews.getId(), event.getEntity().getId());
        assertEquals(State.UNREAD, event.getOldNews().getState());
        assertEquals(State.UPDATED, event.getEntity().getState());
      }
    };
    DynamicDAO.addEntityListener(INews.class, newsListener);
    feed.getNews().get(0).setState(State.UPDATED);
    try {

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    NewsListener newsListener = new NewsAdapter() {
      @Override
      public void entitiesUpdated(Set<NewsEvent> events) {
        assertEquals(1, events.size());
        NewsEvent event = events.iterator().next();
        assertEquals(savedNewsId, event.getEntity().getId());
        assertEquals(State.UNREAD, event.getOldNews().getState());
        assertEquals(State.UNREAD, event.getEntity().getState());
      }
    };
    DynamicDAO.addEntityListener(INews.class, newsListener);
    try {
      savedNews = DynamicDAO.save(savedNews);
    } finally {
      DynamicDAO.removeEntityListener(INews.class, newsListener);
    }
    newsListener = new NewsAdapter() {
      @Override
      public void entitiesUpdated(Set<NewsEvent> events) {
        assertEquals(1, events.size());
        NewsEvent event = events.iterator().next();
        assertEquals(savedNewsId, event.getEntity().getId());
        assertEquals(State.UNREAD, event.getOldNews().getState());
        assertEquals(State.UPDATED, event.getEntity().getState());
      }
    };
    DynamicDAO.addEntityListener(INews.class, newsListener);
    savedNews.setState(State.UPDATED);
    try {

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   * otherwise.
   */
  public static boolean isNewStateChange(Set< ? extends ModelEvent> events) {
    for (ModelEvent event : events) {
      if (event instanceof NewsEvent) {
        NewsEvent newsEvent = (NewsEvent) event;
        boolean oldStateNew = INews.State.NEW.equals(newsEvent.getOldNews() != null ? newsEvent.getOldNews().getState() : null);
        boolean currentStateNew = INews.State.NEW.equals(newsEvent.getEntity().getState());


        if (oldStateNew != currentStateNew)
          return true;
      }
    }

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   * otherwise.
   */
  public static boolean isStickyStateChange(Set< ? extends ModelEvent> events) {
    for (ModelEvent event : events) {
      if (event instanceof NewsEvent) {
        NewsEvent newsEvent = (NewsEvent) event;
        boolean oldSticky = (newsEvent.getOldNews() != null) ? newsEvent.getOldNews().isFlagged() : false;
        boolean currentSticky = newsEvent.getEntity().isFlagged();


        if (oldSticky != currentSticky)
          return true;
      }
    }

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   * UNREAD to a different one, <code>FALSE</code> otherwise.
   */
  public static boolean isReadStateChange(Set< ? extends ModelEvent> events) {
    for (ModelEvent event : events) {
      if (event instanceof NewsEvent) {
        NewsEvent newsEvent = (NewsEvent) event;
        boolean oldStateUnread = isUnread(newsEvent.getOldNews() != null ? newsEvent.getOldNews().getState() : null);
        boolean newStateUnread = isUnread(newsEvent.getEntity().getState());


        if (oldStateUnread != newStateUnread)
          return true;
      }
    }

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   * given Events, <code>FALSE</code> otherwise.
   */
  public static boolean isNewOrReadStateChange(Set< ? extends ModelEvent> events) {
    for (ModelEvent event : events) {
      if (event instanceof NewsEvent) {
        NewsEvent newsEvent = (NewsEvent) event;


        boolean oldStateNew = INews.State.NEW.equals(newsEvent.getOldNews() != null ? newsEvent.getOldNews().getState() : null);
        boolean currentStateNew = INews.State.NEW.equals(newsEvent.getEntity().getState());


        if (oldStateNew != currentStateNew)
          return true;


        boolean oldStateUnread = isUnread(newsEvent.getOldNews() != null ? newsEvent.getOldNews().getState() : null);
        boolean newStateUnread = isUnread(newsEvent.getEntity().getState());


        if (oldStateUnread != newStateUnread)
          return true;
      }
    }

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   * Events, <code>FALSE</code> otherwise.
   */
  public static boolean isStateChange(Set< ? extends ModelEvent> events) {
    for (ModelEvent event : events) {
      if (event instanceof NewsEvent) {
        NewsEvent newsEvent = (NewsEvent) event;
        INews.State oldState = newsEvent.getOldNews() != null ? newsEvent.getOldNews().getState() : null;
        if (oldState != newsEvent.getEntity().getState())
          return true;
      }
    }


    return false;

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   * <code>FALSE</code> otherwise.
   */
  public static boolean gotDeleted(Set< ? extends ModelEvent> events) {
    for (ModelEvent event : events) {
      if (event instanceof NewsEvent) {
        NewsEvent newsEvent = (NewsEvent) event;


        boolean isVisible = newsEvent.getEntity().isVisible();
        boolean wasVisible = newsEvent.getOldNews() != null ? newsEvent.getOldNews().isVisible() : false;


        if (!isVisible && wasVisible)
          return true;
      }
    }

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org.rssowl.core.internal.persist.dao.NewsDAOImpl

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