Examples of com.db4o.query.Query.execute()

com.db4o.query.Query.execute()
executes the {@link Query}. @return {@link ObjectSet} - the result of the {@link Query}.

  @SuppressWarnings("unchecked")
  private List<INews> getNewsFromLink(INews newsItem) {
    Query query = fDb.query();
    query.constrain(News.class);
    query.descend("fLinkText").constrain(newsItem.getLink().toString()); //$NON-NLS-1$
    return activateAll(query.execute());
  }


  @SuppressWarnings("unchecked")
  private List<INews> getNewsFromGuid(INews newsItem) {
    Query query = fDb.query();

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  @SuppressWarnings("unchecked")
  private List<INews> getNewsFromGuid(INews newsItem) {
    Query query = fDb.query();
    query.constrain(News.class);
    query.descend("fGuidValue").constrain(newsItem.getGuid().getValue()); //$NON-NLS-1$
    return activateAll(query.execute());
  }


  private void saveFeed(MergeResult mergeResult) {
    for (Object o : mergeResult.getRemovedObjects()) {
      /* We know that in these cases, the parent entity will be updated */

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    DynamicDAO.save(newsBin);


    Query query = fDb.query();
    query.constrain(News.class);
    query.descend("fParentId").constrain(0).not();
    List<?> newsCopies = query.execute();
    assertEquals(1, newsCopies.size());
    assertEquals(newsCopy, newsCopies.get(0));


    query = fDb.query();
    query.constrain(News.class);

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    assertEquals(newsCopy, newsCopies.get(0));


    query = fDb.query();
    query.constrain(News.class);
    query.descend("fParentId").constrain(0);
    List<?> newsList = query.execute();
    assertEquals(1, newsList.size());
    assertEquals(news, newsList.get(0));


    query = fDb.query();
    query.constrain(News.class);

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    query = fDb.query();
    query.constrain(News.class);
    query.descend("fGuidValue").constrain(news.getGuid().getValue());
    query.descend("fParentId").constrain(0).not();
    newsCopies = query.execute();
    assertEquals(1, newsCopies.size());
    assertEquals(newsCopy, newsCopies.get(0));


    query = fDb.query();
    query.constrain(News.class);

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    query = fDb.query();
    query.constrain(News.class);
    query.descend("fGuidValue").constrain(news.getGuid().getValue());
    query.descend("fParentId").constrain(0);
    newsList = query.execute();
    assertEquals(1, newsList.size());
    assertEquals(news, newsList.get(0));
  }


  /**

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    for (IEntity entity : entities) {
      Query query = defragmentedDb.query();
      query.constrain(entity.getClass());
      query.descend("fId").constrain(Long.valueOf(entity.getId())); //$NON-NLS-1$


      List<?> result = query.execute();
      assertEquals(1, result.size());
      assertEquals(entity, result.get(0));


      if (entity instanceof Attachment)
        assertTrue(((Attachment) entity).isIdentical((Attachment) result.get(0)));

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    for (INews news : newsList) {
      Query query = defragmentedDb.query();
      query.constrain(news.getClass());
      query.descend("fId").constrain(Long.valueOf(news.getId())); //$NON-NLS-1$


      List<INews> result = query.execute();
      assertEquals(1, result.size());
      assertEquals(news.getTitle(), result.get(0).getTitle());
    }


    /* Assert Description */

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    for (Description description : descriptions) {
      Query query = defragmentedDb.query();
      query.constrain(description.getClass());
      query.descend("fNewsId").constrain(Long.valueOf(description.getNews().getId())); //$NON-NLS-1$


      List<Description> result = query.execute();
      assertEquals(1, result.size());
      assertEquals(description.getValue(), result.get(0).getValue());
    }


    /* Assert News Bins */

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    for (INewsBin newsBin : newsBins) {
      Query query = defragmentedDb.query();
      query.constrain(newsBin.getClass());
      query.descend("fId").constrain(Long.valueOf(newsBin.getId())); //$NON-NLS-1$


      List<INewsBin> result = query.execute();
      assertEquals(1, result.size());
      assertEquals(newsBin.getNews(), result.get(0).getNews());
    }


    /* Assert Folders, Bookmarks and Searchmarks */

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