Examples of com.gnizr.db.dao.TagAssertion

com.gnizr.db.dao.TagAssertion

This class provides the representation for a tag assertion. Tag assertion is a statement made by a user to describe a tagging relation between two UserTag. For example, the user can made assertions to state that a given tag related to, narrower than, broader than, or is type of another tag.

Relationships are defined by TagProperty. Gnizr comes with a set of predefined TagProperty, which is defined by the gnizr database schema. Developers can create new property by introduce new tag property records in the database schema.

The ID of the TagProperty uniquely identifies a TagProperty. The ID is usually assigned by the database system when a TagProperty is created for the first time.
@author Harry Chen @since 2.3

    boolean isOkay = false;
    List<TagAssertion> tagAssertion = new ArrayList<TagAssertion>();
    try {
      UserTag[] subjTag = createUserTag(user, instTags);
      for(int i = 0; i < subjTag.length; i++){
        TagAssertion ta = new TagAssertion();
        ta.setUser(user);
        ta.setSubject(subjTag[i]);
        ta.setProperty(rdfTypeProperty);
        ta.setObject(clsTag);
        tagAssertion.add(ta);
      }
      int size = tagAssertion.size();
      isOkay = tagAsrtDao.createTagAssertion(tagAssertion.toArray(new TagAssertion[size]));
    } catch (Exception e) {

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    if (GnizrDaoUtil.hasMissingId(aUser)) {
      GnizrDaoUtil.fillId(userDao, aUser);
    }
    List<TagAssertion> result = tagAsrtDao.findTagAssertion(aUser);
    for (Iterator<TagAssertion> it = result.iterator(); it.hasNext();) {
      TagAssertion ta = it.next();
      GnizrDaoUtil
          .fillObject(tagAsrtDao, tagPrptDao, tagDao, userDao, ta);
    }
    return result;
  }

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      throws NoSuchUserException, NoSuchTagException,
      NoSuchUserTagException, NoSuchTagPropertyException,
      NoSuchTagAssertionException, MissingIdException {
    logger.debug("deleteTagAssertion: assertion=" + assertion);
    GnizrDaoUtil.checkNull(assertion);
    TagAssertion obj = new TagAssertion(assertion);
    if (GnizrDaoUtil.hasMissingId(obj)) {
      GnizrDaoUtil.fillId(tagAsrtDao, tagPrptDao, tagDao, userDao, obj);
      if (obj.getId() <= 0) {
        throw new MissingIdException("tag assertion missing id");
      }
    }
    return tagAsrtDao.deleteTagAssertion(obj.getId());
  }

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  public boolean isGeoTagTypeAssertion(TagAssertion tagAssertion)
      throws NoSuchUserException, NoSuchTagException,
      NoSuchUserTagException, NoSuchTagPropertyException,
      NoSuchTagAssertionException, MissingIdException {
    GnizrDaoUtil.checkNull(tagAssertion);
    TagAssertion obj = new TagAssertion(tagAssertion);
    GnizrDaoUtil.fillId(tagAsrtDao, tagPrptDao, tagDao, userDao, obj);
    TagProperty property = obj.getProperty();
    UserTag objectTag = obj.getObject();
    if (property.getId() == rdfTypeProperty.getId()
        && objectTag.getId() == gnizrPlaceTag.getId()) {
      return true;
    }
    return false;

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  public TagAssertion getTagAssertion(int id) throws NoSuchUserException,
      NoSuchTagException, NoSuchUserTagException,
      NoSuchTagPropertyException, NoSuchTagAssertionException,
      MissingIdException {
    TagAssertion asrt = tagAsrtDao.getTagAssertion(id);
    GnizrDaoUtil.fillObject(tagAsrtDao, tagPrptDao, tagDao, userDao, asrt);
    return asrt;
  }

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  }


  private void addUserTagObjectToList(List<TagAssertion> tagAssertions,
      List<UserTag> userTags, int ignoreTagId) {
    for (Iterator<TagAssertion> it = tagAssertions.iterator(); it.hasNext();) {
      TagAssertion ta = it.next();
      UserTag ut = ta.getObject();
      if (ut != null) {
        if (ut.getId() != ignoreTagId && userTags.contains(ut) == false) {
          userTags.add(ut);
        }
      } else {

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  }


  private void addUserTagSubjectToList(List<TagAssertion> tagAssertions,
      List<UserTag> userTags, int ignoreTagId) {
    for (Iterator<TagAssertion> it = tagAssertions.iterator(); it.hasNext();) {
      TagAssertion ta = it.next();
      UserTag ut = ta.getSubject();
      if (ut != null) {
        if (ut.getId() != ignoreTagId && userTags.contains(ut) == false) {
          userTags.add(ut);
        }
      } else {

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  public void testDeleteTagAssertion() throws Exception{
    User user = new User("hchen1");
    UserTag subjTag = new UserTag("hchen1","webwork");
    TagProperty prpt = new TagProperty(1);
    UserTag objTag = new UserTag("hchen1","wii");
    TagAssertion asrt = new TagAssertion(subjTag,prpt,objTag,user);
    
    List<TagAssertion> asrts = manager.listTagAssertion(user);
    assertEquals(4,asrts.size());
    
    boolean okay = manager.deleteTagAssertion(asrt);

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    asrts = manager.listTagAssertion(user);
    assertEquals(3,asrts.size());
  }


  public void testIsGeoTagTypeAssertion() throws Exception{
    TagAssertion assertion = manager.getTagAssertion(3);
    assertFalse(manager.isGeoTagTypeAssertion(assertion));
    assertion = manager.getTagAssertion(4);
    assertTrue(manager.isGeoTagTypeAssertion(assertion));
  }

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  public void testAddTagAssertion() throws Exception{
    User user = new User("hchen1");
    UserTag subjTag = new UserTag("hchen1","videogame");
    TagProperty prpt = new TagProperty(1);
    UserTag objTag = new UserTag("hchen1","wii");
    TagAssertion asrt = new TagAssertion(subjTag,prpt,objTag,user);
    
    // we shouldnt be able to delete a non-existing tag assertion
    boolean caughtException = false;
    try{
      manager.deleteTagAssertion(asrt);

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Related Classes of com.gnizr.db.dao.TagAssertion

com.gnizr.core.managers.TestTagManager

com.gnizr.core.tag.TagManager

com.gnizr.core.tag.TagPager

com.gnizr.core.util.GnizrDaoUtil

com.gnizr.core.util.TestGnizrDaoUtil

com.gnizr.db.dao.tag.TagAssertionDBDao

com.gnizr.db.dao.tag.TestTagAssertionDBDao

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